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Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product.

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1 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Second Copil Technique SP4 SP4 = modes d'accès innovants

2 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Agenda Description du SP4 –Partenaires impliqués dans le SP4 –Rappel des objectifs du SP4 –Présentation de lOBS et WBS actuels Liste des tâches en cours Points administratifs et coordination avec les autres SP –Finalisation TDD –Status du D4.2.1 –Modèles de canaux Progrès technique du SP4 sur les tâches actives Présentations techniques du SP4: –SP4.2: Retransmission et turbo égalisation (Charly Pouillat, ETIS) –SP4.3: Cooperative relaying for cellular networks (Sebastien Simoens, Motorola) Point dissémination

3 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Objectifs et tâches Context: Pôle de compétitivité Urbanisme des RadioCommunications Objectifs: –Proposer des améliorations des accès radio sans fil afin de les adapter à une gestion plus dynamique du spectre et d'élaborer des concepts nouveaux Retombées: –augmentation du débit total moyenné sur le réseau ou du nombre d'utilisateurs servis et une réduction de linterférence contribuant à un assainissement global de lécosystème sans fil Division en 4 tâches: Tâche 4.1: Gestion conjointe des ressources radio Tâche 4.2: Optimisation conjointe des couches accès et physique Tâche 4.3: Couche physique distribuée : réseaux maillés, relais coopératifs et réseaux MIMO virtuels Tâche 4.4: Schémas de transmission multiantennes avancés Tâche 4.5: Retournement temporel Rechercher

4 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Organisation Partenaires impliqués: –FT, Motorola, Thales, Comsis, Sequans, GET/ENST, ETIS/UCP, Supelec, INRETS –Conseillé scientifique: I. Fijalkow, ETIS/UCP –Responsable SP4: Marc de Courville, Motorola Responsables SP4 par org.: –FT: Manfaï Wong –Motorola: Marc de Courville –Comsis: Philippe Leclair –Sequans: Paul Bazzaz –GET/ENST: Philippe Ciblat –Thales: Isabelle Icart –ETIS/UCP: Inbar Fijalkow –Supelec: Jocelyn Fiorina –INRETS: Abderrazak Abdaoui

5 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Rôles des partenaires: Matrice OBS

6 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc WBS pour chaque tâche

7 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.1: Gestion conjointe des ressources radio Responsable: Motorola (David Grandblaise) Laison: Motorola (David Grandblaise), Supelec (Jocelyn Fiorina) Livrable D4.1.1: Mécanismes de gestion conjointe de ressource intra et inter systèmes (Rapport/Simulations) Editeur: Motorola (Véronique Buzenac) Tâche: Mono système: gestion dinterference Durée: T0+8->T0+36 Acteurs: Supelec (Pascal Bianchi) et Motorola (Véronique Buzenac), ETIS/UCP (Fijalkow), GET/ENST (Ciblat/Hachem), Thales (Le Martret), INRETS (Berbineau) Sous-Tâche: Allocation de ressources OFDMA (niveau système avec algo de scheduling avancés) (IEEE802.16e/m) Durée: T0+8->T0+20 Acteurs: Supelec Mohamad Assaad, Motorola Véronique Buzenac, ETIS/UCP (Fijalkow), GET/ENST (Ciblat/Hachem), Thales (Le Martret) Sous-Tâche: Déploiement single frequency reuse (IEEE802.16e/m) Durée: T0+12->T0+36 Acteurs: Motorola: Véronique Buzenac, INRETS (Berbineau) Jalon: Transfert vers SP3 des résultats de simus T0+24 Tâche: Intra-systèmes: mechanismes dynamiques de partage de canaux inter-operateurs, coexistence et partage de spectre Durée: T0->T0+20 Acteurs: Motorola (David Grandblaise) Sous-Tâche: Métaheuristique distribuée Sous-sous-Tâche: IEEE802.16h Durée: T0->T0+12 Acteurs:Motorola David Grandblaise Sous-sous-Tâche: IEEE Durée: T0+12->T0+20 Acteurs: Motorola David Grandblaise Jalon: Tranfert vers SP3 des métaheuristiques T0+12

8 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.2: Optimisation conjointe des couches accès et physique Responsable: ETIS/UCP (Charly Poulliat) Laison: Thales (Isabelle Icart), Motorola (Sébastien Simoens), Sequans (Paul Bazzaz), ETIS/UCP (Inbar Fijalkow, Assimi) Livrable D4.2.1: Modulation/Codage adaptatif et HARQ (Rapport intermédiaire/Simulations) Editeur: Thales ( Isabelle Icart ) Tâche: étude codages adaptatifs HARQ/AMC état de lart Durée: T0->T0+6 Acteurs:Thales (Isabelle Icart), Motorola (Sébastien Simoens), Sequans (Paul Bazzaz), ETIS/UCP (Inbar Fijalkow, Assimi, HARQ type II, égaliseur conjoint SIMO) Tâche: stratégies de choix adaptatif de mode de transmission (metrique, IR, SISO&MIMO, lien codage, latence QoS & persistance) Durée: T0+6->T0+18 Acteurs:Thales (Isabelle Icart), Motorola (Sébastien Simoens), Sequans (Paul Bazzaz), ETIS/UCP (Inbar Fijalkow) Jalon: Transfert vers SP3 des résultats de simus T0+24 Livrable D4.2.2: Modulation/Codage adaptatif et HARQ (Rapport final/Simulations) (Combinaison HARQ/AMC) Editeur: ETIS/UCP (Inbar Fijalkow) Tâche: influence dune connaissance imparfaite ou partielle du canal de transmission avec décodage itératif (mono, multiuser) Durée: T0+18->T0+36 Acteurs: ETIS/UCP (Inbar Fijalkow) Jalon: modèles de canaux en provenance de SP2/3 T0+12

9 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.3: Couche physique distribuée: réseaux maillés, relais coopératifs et réseaux MIMO virtuels Responsable: Supélec (Jocelyn Fiorina) Liaison: Thales (Isabelle Icart), Motorola (Sébastien Simoens), Supelec (Jocelyn Fiorina), GET/ENST (Philippe Ciblat), INRETS (Abdaoui) Livrable D4.3.1: Réseaux coopératifs, antennes virtuelles et relais Editeur: Thales (Isabelle Icart) Tâche: relais coopératif Durée: T0->T0+12 Acteurs: Thales (Isabelle Icart), Motorola (Sébastien Simoens), GET/ENST (Philippe Ciblat),Supélec Tâche: modulation et codage distribué VMIMO, collaborative BST Durée: T0+6->T0+18 Acteurs: Thales (Isabelle Icart), Motorola (Laurent Mazet), Supelec (Jocelyn Fiorina, Antoine Berthet), GET/ENST (Philippe Ciblat) Livrable D4.3.2: Réseaux coopératifs et réseaux ad-hoc/maillés Editeur: Supelec (Jocelyn Fiorina) Tâche: Adhoc and pervasive networks. IEEE et alternatives Durée: T0+6->T0+36 Acteurs: Thales, Supelec (Jocelyn Fiorina), INRETS (Marion Berbineau) Jalon: T0+12, importation du SP3 des contraintes de méthodologie de simulation à appliquer aux réseaux maillés et relais coopératifs. Jalon: T0+24, transfert au SP3 des résultats de performance des nouvelles méthodes mise en œuvre sur réseaux maillés et relais coopératifs. Jalon: T0+36, livrable. Tâche: algorithmes dinférence distribuée appliqués au traitement de linformation dans les réseaux sans fil centralisés et décentralisés Durée: T0+9->T0+36 Acteurs: Supelec (Antoine Berthet, Mithridad Pourmir)

10 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.4: Schémas de transmission multiantennes avancés Responsable: GET/ENST (Philippe Ciblat) Liaison: GET/ENST (Philippe Ciblat/Jean-Claude Belfiore), Motorola (Stéphanie Rouquette/Véronique Buzenac), Supelec (Jocelyn Fiorina), Sequans (Paul Bazzaz), INRETS (Abdaoui), Comsis (Leclair) Livrable D4.4.1: Nouvelles modulations MIMO avancées pour IEEE802.11n et IEEE802.16e/m : techniques multi- utilsateurs et formation de voies (Rapport/Simulations) Editeur: ENST (Philippe Ciblat) Tâche: Schémas MU-MIMO classique: SDMA (MU-MIMO UL&DL), STC distribués (MU-MIMO UL) Durée: T0->T0+12 Acteurs: Motorola (Stéphanie Rouquette), Supelec (Jocelyn Fiorina, Mohamad Assaad), Sequans (Paul Bazzaz), INRETS (Abdaoui) Tâche: Schémas MU-MIMO downlink avancés: DPC, Opportunistic beamforming, précodage linéaire Durée: T0+6->T0+18 Acteurs: GET/ENST (Philippe Ciblat/Jean-Claude Belfiore), Motorola (Véronique Buzenac), Supelec (Jocelyn Fiorina, Mohamad Assaad), Sequans (Paul Bazzaz), INRETS (Marion Berbineau) Livrable D4.4.2: Nouvelles modulations MIMO avancées pour IEEE802.11n et IEEE802.16e/m : code spatio-temporels parfaits (Rapport/Simulations) (pb du canal de Rice) Editeur: GET/ENST (Jean-Claude Belfiore) Tâche: codes spatio-temporels parfaits, construction de codes pour connaissance partielle des canaux au TX Durée: T0+6->T0+18 Acteurs: GET/ENST (Jean-Claude Belfiore), Motorola (Stéphanie Rouquette), Comsis (Leclair), Supelec (Jocelyn Fiorina), Sequans (Paul Bazzaz), INRETS (Abdaoui) Tâche: precodage, étalement et codes hybrides STC, TxBF Durée: T0+12->T0+36 Acteurs: GET/ENST (Philippe Ciblat/Jean-Claude Belfiore), Motorola (Patrick Labbe) Jalon: T0+6, importation des méthodologies de simulation du SP3 en terme de modèles de canaux, de couplage dantennes et denvironnement pour procéder à des simulations réalistes Jalon: T0+24, transfert au SP3 des nouvelles méthodes MIMO développées dans le SP4

11 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.5: Analyse du retournement temporel Responsable: France Telecom (Manfaï Wong) Liaison: France Telecom (Manfaï Wong) Livrable D4.5.1: Rapport sur les fondements et la mise en œuvre expérimentale (Rapport/Simulations) Editeur: France Telecom (Manfaï Wong) Tâche: Fondements du retournement temporel, questions théoriques des ondes électromagnétiques Durée: T0->T0+18 Acteurs: France Telecom (Manfaï Wong), Supelec (Jocelyn Fiorina) Livrable D4.5.2: Analyse des spécificités liées aux ondes électromagnétiques (Rapport/Simulations) Editeur: France Telecom (Manfaï Wong) Tâche: Mise en œuvre expérimentale du retournement temporel dans les ondes radioélectriques. Analyse des techniques de retournement temporel Durée: T0+18->T0+30 Acteurs: France Telecom (Manfaï Wong) Tâche: Comparaison avec les techniques usuelles d'égalisation Durée: T0+24->T0+36 Acteurs: France Telecom (Manfaï Wong)

12 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Récapitulatif fournitures

13 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc WBS

14 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Planification 1/2

15 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Planification 2/2

16 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Remontés au COPIL global Modèles de canaux variant dans le temps pour

17 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Sous-tâches actives du SP4 SP4.1 Gestion conjointe des ressources radio (Motorola David Grandblaise) –Livrable D4.1.1: Mécanismes de gestion conjointe de ressource intra et inter systèmes (Rapport/Simulations) Tâche: Intra-systèmes: coexistence et partage de spectre –Sous-Tâche: Métaheuristique distribuée IEEE802.16h Durée: T0->T0+12 –Acteurs: Motorola (David Grandblaise) SP4.2 Optimisation conjointe des couches accès et physique (ETIS/UCP: Charly Poulliat) –Livrable D4.2.1: Modulation/Codage adaptatif et HARQ (Rapport intermédiaire/Simulations) (Thales Christophe Le Martret) Tâche: étude codages adaptatifs HARQ/AMC état de lart Durée: T0->T0+6 Acteurs:Thales (Christophe Le Martret), Motorola (Sébastien Simoens), Sequans (Paul Bazzaz), ETIS/UCP (Inbar Fijalkow, Assimi, HARQ type II, égaliseur conjoint SIMO) SP4.3 Couche physique distribuée: réseaux maillés, relais coopératifs et réseaux MIMO virtuels (Supelec Jocelyn Fiorina) –Livrable D4.3.1: Réseaux coopératifs, antennes virtuelles et relais (Thales: Marc Chenu) Tâche: relais coopératif: accroissement de la capacité et résolution des problèmes de masquage, aspects pratiques Durée: T0->T0+12 –Acteurs: Thales (Marc Chenu), Motorola (Sébastien Simoens), GET/ENST (Jean-Claude Belfiore), Supelec (Fiorina), INRETS (Abdaoui) SP4.4 Schémas de transmission multiantennes avancés (GET/ENST Philippe Ciblat) –Livrable D4.4.1: Nouvelles modulations MIMO avancées pour IEEE802.11n et IEEE802.16e/m : techniques multi-utilsateurs et formation de voies (Rapport/Simulations) (ETIS/UCP Inbar Fijalkow) Tâche: Schémas MU-MIMO classique: SDMA (MU-MIMO UL&DL), STC distribués (MU-MIMO UL) Durée: T0- >T0+12 Acteurs: Motorola (Stéphanie Rouquette), Supelec (Jocelyn Fiorina, Mohamad Assaad), Sequans (Paul Bazzaz), INRETS (Abdaoui) SP4.5 Analyse du retournement temporel (France Telecom Manfaï Wong) –Livrable D4.5.1: Rapport sur les fondements et la mise en œuvre expérimentale (Rapport/Simulations) Tâche: Fondements du retournement temporel, questions théoriques des ondes électromagnétiques –Acteurs: France Telecom (Manfaï Wong), Supelec (Jocelyn Fiorina) Durée: T0->T0+18

18 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4 progress update per task

19 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc TDD status Task description document: –To evolve along the life of the project describing initially the active tasks TDD4.1: completed –Aggregator: Motorola TDD4.2: completed –Aggregator: ETIS TDD4.3: completed –Aggregator: SUPELEC TDD4.4: completed –Aggregator: ENST/Motorola TTD4.5: completed and posted –Aggregator: FT

20 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.1: Gestion conjointe des ressources radio Dynamic Inter-BSs Channels Sharing –Progress on the design of an extended DCA scheme enabling inter BS channels (multi-RAT) reuse on a shared pool of carrier frequency for heterogeneous reuse distance constraints (SNR based, etc.) –State of the art: for the moment the allocation is dynamic for mono- system or fixed for betweens heterogeneous RATs

21 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2: Optimisation conjointe des couches accès et physique Ongoing activities: –Repetition and turbo-equalization Iterative detector structure for HARQ, ML FER perf. HARQ/Chase Combining detector. Theoretical admissible rates for perfect codes. Diversity benefit for bloc transmission. –Adaptive modulation and coding for IEEE802.11n and LQM/CQI accurate metric –End to end HARQ performance including cross layer (IP) modelling Deliverable status –Topic: state of the art on AMC and HARQ –Intermediate report T0->T0+6 –Editor: Thales, Participants: Thales, Motorola, Sequans, ETIS/UCP –Status: 80% completed, expected delivery: 2007/06/15 Channel models (Jalon T0+12) –SP2/3 requested SP4 to provide channel models –Result: one non scheduled report completed and ready for publication containing industry standard channel models covering wide area and local area deployments with status on air interface (OFDM/OFDMA) and system level parameters (path loss, TX power etc.) –Suggested process: transfer to SP2/3 for request for comment and possible validation. If any modification is to be perform, request from SP4 that is is made in the same format than the SCME/TGn channel models specification.

22 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2: D4.2.1 contributions summary ETIS : –Contribution à l'état de l'art des techniques d'ARQ hybrides : Techniques d'HARQ à redondance incrémentale utilisant les turbo-codes à rendements compatibles (RCTC). Techniques d'HARQ à redondance incrémentale utilisant des codes LDPC poinçonnés ou des codes Fontaines/Raptors. Techniques d'HARQ avec égalisation intégré. MOTOROLA : –Contribution à l'état de l'art des techniques d'ARQ hybrides : State of the art on AMC and application to IEEE802.11n Combined AMC/HARQ and applicability to IEEE802.11a (suitability taking into account MAC overhead) CQI/LQM and MIMO error prediction techniques (EESM, MIESM based) THALES : –Proposition de squelette/répartition des contributions entre les différents partenaires. –Contribution à l'état de l'art des techniques d'ARQ hybrides : Techniques d'HARQ à redondance incrémentale utilisant les codes convolutifs à rendements compatibles (RCPC). Techniques MIMO/HARQ. Optimisation cross-layer IP/accès radio basée sur les HARQ. SEQUANS : –Contribution état de l'art pour standard e.

23 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.3: Couche physique distribuée: réseaux maillés, relais coopératifs et réseaux MIMO virtuels Cooperative relaying –MIMO Single Relay System for Uplink communications (Bus-Base station): in Urbain and Suburbain environments such as Paris and Ille- de-France for public transportation (Bus) (INRETS) –Benefit of fixed cooperative relaying technologies for cellular networks, towards illustration for IEEE802.16m (Motorola): benchmarking D&F, C&F for UL and DL with MIMO configurations of RS and BS –Power allocation strategies for the relays for minimizing the error probability in the D&F context and extension to A&F (ENST) Cooperative BS –Start of investigation of distributed antenna arrays: benefit of central processing for UL decoding and user/BS selection strategies (Motorola) Ad-hoc and distributed networks: –Power Control in Ad-hoc networks (SUPELEC) –Proposal of a distributed inference algorithm. Development of this algorithm is based on an extension of an recent method proposed for performing point to point equalization (SUPELEC)

24 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Tâche 4.3: Couche physique distribuée: réseaux maillés, relais coopératifs et réseaux MIMO virtuels Létude du Relay Channel a mené à divers approfondissement en cours: Étude du MIMO Compress and Forward (Simoens) Application de relais fixes dans le cadre dun déploiement cellulaire. (Simoens) Etude sur lattribution des puissances aux différents relais pour diminuer la probabilité derreur dans un contexte Decode and Forward, extension au contexte Amplify and Forward. (Ciblat) Un scenario de communication Bus/ Base Station impliquant un relais est à létude. Les algorithmes doivent être évalués en fonction de la position du relais et des conditions proposées liées à lenvironnement urbain (Paris/ Ile de France). (Abdaoui) Létude des réseaux ad-hoc et distribués: Power Control in Ad-hoc networks. (Fiorina) Proposition dun algorithme dinférence distribuée. Le développement de cet algorithme se fait à partir de lextension dun algorithme récemment proposé en point à point pour légalisation. (Berthet/Mithridad)

25 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4: Schémas de transmission multiantennes avancés Multi-user MIMO for uplink and downlink: –Investigation on dirty paper coding energy confinement function and comparison with block diagonalization (Tx SDMA) –Adavanced receiver for UL MU-MIMO: use Bit-Interleaved coded modulation scheme at the transmitter and interference canceller MMSE receiver (IC-MMSE) based on Generalized Minimal Residual (GMRES) Advanced MIMO schemes for IEEE802.16m and IEEE802.11n/vht –Golden codes evaluation and design (COMSIS&Motorola), implementation on real hardware (COMSIS) –Optimal precoding for Ricean channel Heuristic proposition for several precoding matrices mitigating outage probability in MIMO scheme MISO scheme (typically mobile phone) : caracterisation et sketch of proof for optimal precoding

26 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.5: Analyse du retournement temporel Goal: Analysis of the potential of time reversal for communications –Avoid channel estimation, record at RX the received wave and retransmit its time reversed conjugate basedband equivalent to perform perfect adaptive filter: application to UWB PAM transceiver design. –Study the basic principles of Time Reversal (TR) with experimentation –Modelling Output : experimental and virtual platform for testing TR Progress and results: –Definition and implementation of the basic TR experiment in reverberation chamber –Simulation with 2D FDTD

27 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4 technical summary and highlights

28 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.1.1 Study 1: DCA extension for Inter-BSs channels sharing Objective: Assess and analyze channels sharing trunking gain when channels can be shared in a distributed fashion (cell by cell basis) between BSs with heterogeneous frequency reuse distances constraints in a simple scenario. Approach: Pooling system in which classical dynamic channel allocation (DCA) scheme is generalized. Problem formulation will be provided in SP4.1 and simulation/results will be provided in SP3. Expectations: This preliminary analysis will provide some guidance in which circumstances inter-BSs channel sharing should be triggered or not to ensure some trunking gain.

29 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.1.1 Study 2: I nter-BSs channels offering/renting strategies Objective: Design some real time inter-BSs channel sharing negotiation strategies in support of channel offering/renting between BSs. Approach: Offering/renting meta-heuristics (auctioning based or not) will be proposed in SP4.1. Simulation/results will be provided in SP3. Expectations: Results of this study are expected to be disseminated in h/ standardization bodies as solutions for h/ systems self-coexistence (cognitive radio based).

30 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.1 Dynamic Inter-BSs Channels Sharing (multiple RAT) Idea: extension of single system based distributed and dynamic real time frequency assignment to a multi-systems radio environment (extension of DCA to M systems) Principle: –Frequency carriers of the M systems are pooled. –Frequencies of the pool can be accessed by any of the system provided that the co- channel intra and inter systems reuse distance constraints are not violated (cell by cell based) => Call admission control (CAC) focused. –A set of eligible frequencies is assessed for each new call (call by call based). In case no eligible channels exists, the user is blocked. –A channel is selected randomly among the eligible channels (the user is served). Output: Performance bound derivation of the eDCA trunking gain (regardless of negotiation output: ideal case) at an abstraction level Modeling: Approached as a queuing system for M different radio systems in a linear multi-cells topology with heterogeneous reuse distance constraints and channel quantum.

31 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2.1 Efficient CQI for AMC in IEEE802.11n Current systems provide a lot of MCS (1930 for 11n) Spectrum efficiency is conditioned to the reliable choice of the MCS depending on the transmission medium quality Accurate CQI indicators is a must in next generation systems –Traditional approaches rely on a SNR based criterion for performing AMC –Issue: large standard deviation of the PER distribution at a given SNR as a function of channel realizations Progress: mutual information/exp-ESM based metrics 7dB shift with respect to ergodic capacity limit with linear receiver and punctured convolutional codes Illustration: from 1x1 IEEE802.11a link to IEEE802.11n 2x2

32 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc M = 6 M = 3 SP4.2.1: HARQ, context of the study HARQ is an extension of standard ARQ which greatly improves wireless channels reliability (throughput, efficiency) Incremental Redundancy (type III HARQ) is a throughput-efficient technique (progressively adapts FEC redundancy level according to channel state conditions) MSDU-HARQ is proven to be more efficient than MPDU-HARQ Simulation results over Gaussian channel

33 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Build an Omnet simulation including : –Radio Access layer model (MAC+PHY) –Incremental redundancy HARQ techniques –Gaussian / Rayleigh fading radio channel models –Ad-hoc network configuration : Traffic generated by means of Poisson statistics Dynamic priority-based allocation scheme Cooperative relaying Performance (throughput, efficiency) measurements at MAC level IP-level performance estimations SP4.2.1: WIP, expected results

34 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2.1 H-ARQ with integrated turbo- equalization Channel Model : – We adopt Nakagami-m block fading channel model. It includes large class of fading channels (Rayleigh, Rician). – Channel coefficients h=(h 0,…h L ) are i.i.d. Gaussian random variables. h i are constant over the duration of each packet and independent from one packet to another. Turbo-equalization : Iterative signal detection and error correction. Channel diversity : – Codeword is divided to B blocks of equal length. – Each block is sent over an independent fading channel.

35 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2.1: Turbo-Equalization Low complexity : – Simple filter-based MMSE-turbo equalizer with linear complexity as function of channel length and modulation alphabet size (*). – Performances are closed to those of the MAP equalizer Fast convergence : – Only 3 iterations are needed to achieve flat-fading channel performance. Turbo-equalization gain : – Important SNR gain in frame error rate allowing equivalent gain in throughput performance in H-ARQ system. (*) submitted to GRETSI-07

36 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.2.1 H-ARQ with joint equalization Channel diversity : – Average SNR per received packet variation is reduced with increasing number of blocks per coded packet. –SNR distribution : (m = B x L) Block combining: –Multiple received replicas of each block are jointly equalized. –H-ARQ mode between Chase Combining (CC) and Incremental Redundancy (IC) is possible.

37 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.3.1: Motivations for cooperative relaying Relaying is a reality –Products are there (e.g. MotoMesh® city-wide networks) –Standards are on the way (802.11s, j) Motivation for Relaying –Combat the throughput drop vs. distance –Limit the deployment cost (wireless backhaul) –Increase the total system capacity What is cooperative relaying? –Constructive transmissions from source and relay(s) are recombined at destination (2 hop case) Why cooperative relaying? –Improves coverage/capacity by virtual MIMO techniques –Can benefit from both infrastructure and user density Cooperative Relaying Single-Path Relaying Direct Interference or contribution?

38 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.3.1: preliminary benchmarking Metric: DL single user maximum (TDMA sched) average (fading) mutual information BS: 3 sectors 4AE, MT Omni 2TX lower power Propagation: LOS BS RS, NLOS BS MT & RS MT RS&BS share the TDD/TDMA Urban micro cell deployment, 20MHz BW No relay Non cooperative D&F Coop D&F The BS transmits in phase 1, the RS transmits in phase 2, the MT combines signals from both phases (e.g. MRC, Incremental Redundancy, Distributed STC, etc…) No relay Poor coverage persists in regions far from both BS and RS More than 80 Mb/s is offered in a significant area around relays Poor coverage persists in regions far from both BS and RS BSBS RS MT

39 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.3.1 Cooperative D&F in the downlink Cooperative C&F in the uplink Figure: Relative increase of the peak throughput by cooperative D&F relaying vs. best of non-cooperative techniques BS RS Around the BS, can use Direct Link Around the RS, cooperation yields only small increase (~+20%) Highest improvement in poor coverage areas (~+50%) BS RS Close to the relay use D&F C&F may increase uplink throughput in poor coverage areas Figure: Ratio Cooperative C&F UL throughput vs. Cooperative D&F

40 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.3 Linear precoding Observation: Rice channels are present between BS RS and also in LOS situations (indoor/outdoor) Linear precoding: proposition of new precoding matrix based on optimization of outage probability specifically for Rice channels Literature : precoding matrix based on ergodic capacity MMSE approach to select a relevant matrix (modification of the well-known waterfilling matrix) Approximation at low SNR of outage probability Simulation result : Rice channel (Ricean factor = 7dB)

41 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.1 Cooperative BS Background Frequency reuse 1 networks allow allocation of all the pool of available frequencies to the entire network Consequence: interference level increases reducing link capacity on cell borders Solution for uplink transmission: cooperative decoding of one user by multiple base-stations (Virtual Antennae Array) Resulting problem addressed by invention: selection of base-stations participating in decoding (sub- network) to reduce the amount of data to be transmitted on the backhaul

42 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.1 Cooperative BS Selection procedure Cooperative MMSE decoding link capacity Possible selection procedure: select base-stations by performing SNR ordering (simple but far from optimality) Optimal solution: compute capacity for all possible combinations (complexity affordability issue) Our proposal: a selection algorithm in the spirit of the sphere decoding algorithm i.e. 1.Elect a first set of base-stations based on the SNR criterion. 2.For each selected base-station S: Evaluate the resulting throughput (based on any criterion e.g. the capacity) by substituting this base-station S by a candidate one C belonging to the unselected set If the capacity is improved, the candidate base-station C is elected and replace the previously selected base-station S. S is then reassigned to the pool of unselected base-stations 3.This process (step 2) can be iterated to refine the selection and reach a better selection

43 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.1 Cooperative BS Performance improvement Figure illustrates capacity gain function of the BS number (from 1 to 19) on min and max capacity point for FR1N compared to classic cellular network Gain depends on selection algorithm: e.g. for 7 BS on minimal capacity point we have: –3x with an SNR selection –5x with our sphere like algorithm –6x with exhaustive search Sphere like algorithm provides scalable complexity It preserves important gain with a substantial reduction of the backhaul load

44 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.2: Full rate full diversity codes Current products exploit now Alamouti STBC: –Grants full rate and diversity for 2x1 configurations only! Whats next? –Full rate and full diversity has been demonstrated for 2x2 configurations (Golden codes) and STBC with this property exist for all configurations. good candidates for high data ratesPerfect STBC achieve the diversity-multiplexing gain trade-off with minimal codelength good candidates for high data rates Expected gain: 3dB on top of sphere decoding gain on traditional SDM (~5dB over MMSE) or sub-optimal forms. Output: one STBC new code for 11n if possible or NG standard. Products: high end handsets / video broadcasting in the home, Enabler: –products now integrate near ML detector Definition: –Perfect STBC are codes constructed from a cyclic division algebra that have the unitarity property. Optimization tool: based on number theory Properties –N t symbols per channel use; linearity –Non vanishing determinant when the spectral efficiency increases

45 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.2: Proprietary STBC schemes for IEEE802.11n Golden Code: –2x2 STBC –Full Rate Full Diversity (FR/FD) –Coding Gain Enhancement by optimized TCM(Patented in 2005) –Patented Golden Code decoder in 2006 Claims: –Near Maximum Likelihood Performances ( 1dB) –Low complexity –Outperforms VBLAST 4x4 Progress: –Low complexity decoder architecture for hardware implementation Plans: –2x n development board in June 07 –802.11n SoC (2H07)

46 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.2: GC simulation results Source: Comsis

47 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.4.2 Advanced MIMO receiver SP : GMRES Subspace method based IC-MMSE MIMO Receiver (INRETS) Objective : Reduce the Interferences, in MIMO channel, produced : –by cell transmit antennas. –or by inter-chip interference in case of frequency selective channel. Approach : Use Bit-Interleaved coded modulation scheme at the transmitter and interference canceller MMSE receiver (IC-MMSE) based on Generalized Minimal Residual (GMRES) to resolve the following IC-MMSE equation : Concerns the spatial multiplexing using turbo encoder and Interference Cancellation. Performs the link and the throughput between the Bus and the Base station (usually In UPLINK).

48 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Receiver Structure The IC-MMSE filters are computed as follows : SP4.4.2 Advanced MIMO receiver

49 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.5.1: plans Goal: Analysis of the potential of time reversal for Study the basic principles of Time Reversal (TR) –Set up the basic TR experiment in a reverberation chamber –Simulate TR experiment with electromagnetic modeling tools (FDTD, other, …) –Discuss theoretical questions Output : experimental and virtual platform for testing TR Progress report in July 07

50 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.5.5: progress and results Definition and implementation of the basic TR experiment in reverberation chamber Arbitrary wave generator AWG 710B, 4.2Gs/s antenna Digital oscilloscope TDS 6124C 12GHz, 40Gs/s Reverberation chamber amplifier 50dB antenna

51 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc SP4.5.1 : progress and results Simulation with 2D FDTD

52 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc

53 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Règles de fonctionnement Format des livrables –Version définitive rendue 2 semaines avant date contractuelle –Langue: anglaise –Nomenclature: URC/SPx/Dx.y.z x : de 0 à 4 représentant le sous projet générateur du document. y : numéro de Tâche dans le sous projet générateur du document. A zéro dans le cas dun compte rendu. z : numéro de fourniture dans la Tâche ou numéro dordre dans le cas dun compte rendu. Hiérarchie Sous-Projet/Tâche/Activité/Contribution –Format compatible: Microsoft Word, Excel, Power Point, MSP, Visio Fréquence des réunions davancement: –Physique: tous les 3 mois, conférence téléphonique mensuelle

54 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Liste de diffusion Validation de la liste de contributeurs technique –ETIS: –ENST: jean- –SUPELEC: –FT: –THALES: –SEQUANS: –COMSIS: –INRETS: –MOTOROLA:

55 Motorola confidential proprietary, SR project, r0.1 MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc


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