Wireless Standards adaptation Secured Wireless Products

Targets of the approach Analyze the Wireless Standards (eventually participate in and influence the standardization) Apply the simplest modifications for optimized operations in sensitive and dedicated applications : At a minimal cost With a reasonable delay Without changing the base of the Standard … Secured Wireless Products

S-WiFi Secured Wireless Products

S-WiFi features Civilian standards : 802.11b/g In dedicated frequency bands : 2 – 6 GHz 30dBm and directional antennas: => Improved range : > 2 km @ 11 Mbps (in free space conditions) Modes : AP, repeater Bridge Ad hoc Secured Wireless Products

S-WiFi Ad hoc mode and dynamic routing Network characteristics Ad hoc architecture (no infrastructure required) Nodes can be mobile Relaying for coverage extension Dynamic routing using OLSR switch software Pro-active protocol with routing table maintained permanently OLSR switch : UNIK version used for demo Performances with 802.11b mode (11Mbps radio data rate) Up to 4 Mb/s radio (end-to-end) in urban area, with one relay (2 hops) Secured Wireless Products

Comments on S-WiFi Based on a WiFi core: From a limited number of chipset manufaturers Very mature With a stack completely defined and deeply embedded So, modifications at the lower layers are limited These modifications are mainly possible : at the IP layer 3 for introduction of dynamic routing algorithms (MANET) and externally with a frequency conversion and additional power amplification. Secured Wireless Products

S-WiMAX Secured Wireless Products

IEEE 802.16d Standard Version: 802.16-2004 Main characteristics Frequency band: <11GHz Bandwidth: 1.75, 3.5, 7, 10 or 20MHz Single Carrier, OFDM 256 or OFDMA 2048 Modulation: BPSK, QPSK, QAM16 or QAM 64 Radio data rate: up to 70Mbps RF power: 30dBm typical (depending on the license) Range: PHY protection up to 30km Topologies: centralized (PMP and Centralized MESH) or distributed (Distributed MESH) MAC protocol: TDM/TDMA (frames from 2.5 to 20ms) -> QoS TDD or FDD Security: Traffic Encryption Key of 64bits Secured Wireless Products

Standard IEEE 802.16e 802.16d evolution for mobility support Main characteristics Frequency band : <6GHz Maximum speed: 120km/h Bandwidth: 1.75, 3.5, 7, 10MHz OFDM 256 or OFDMA 2048 Modulation: BPSK, QPSK, QAM16 ou QAM 64 Topology: only in PMP right now MAC protocol: TDM/TDMA (frame from 2.5 to 20ms) Duplex in TDD or FDD Handover New Study group (802.16j) for introduction of RS (Relay Station) between BS (Base Station) and SS (Subscriber Station) : the goal is to avoid too many BS in deployments. RS could be fixed, nomadic or mobile. Secured Wireless Products

S-WiMAX potential applications Secure Hot Spots for Police HQ, Fire-station, … PMP secure networks for airport, railway station, harbour, city, …) Secure videosurveillance in urban environment Frequency band : between 2 and 6 GHz Frequency Hopping Range : 5 km Triple Play Aggregate throughput : 20 Mb/s Secured Wireless Products

Subscriber Station (SS) S-WiMAX platform Subscriber Station (SS) Civilian standards : IEEE 802.16d Radio board Topology : PMP (Point to MultiPoint) Modem board -> MAC Real Time Base Station (BS) Low-latency TDMA-based links BW: 1.75, 3.5, 7 and 10MHz Modulation: OFDM-256 (BPSK, QPSK, QAM16, QAM64) RF: [5.15 – 5.85GHz] Processor board -> Scheduler Secured Wireless Products

S-WiMAX added-value functions Frequency Hopping Overall BW up to 300MHz 400 hops/s … MESH centralized Not available in COTS Relaying at level 2 of the protocol stack … MESH distributed Cross-layer dynamic routing (layers 3 + 2) Secured Wireless Products

Possible levels of modifications General Purpose Processor Half Size PCI Card OFDM Digital Half Size PCI Card RF Analog Half Size PCI Card Antenna PCI C O N E T U R PCI C O N E T U R C O N E T U R C O N E T U R Power ASIC (PHY) FPGA (LMAC) GPP (UMAC) RF Ethernet RS-232 RF level: Tailored radio Upper MAC level: IP layer Interface Scheduler Waveform parameterization Lower MAC interface Lower MAC level: PHY layer Control Signaling management RF chain control Upper MAC interface Secured Wireless Products

S-WiMAX approach Either based on WiMAX systems (BS and CPE): Limited modifications due to the priority of mass-market road-map Or based on WiMAX chipset: From one of the many chipset manufacturers A few deployments right now Availability of various ‘open’ evaluation kits So, modifications are not limited even in the lower layers (MAC level). The potential modifications are tested on an existing test-bed Secured Wireless Products

S-WiMAX recommendation Discuss the opportunity to push for a standardisation activity within IEE to cover a new 802.16 additional standard to address the aviation airport needs Taking the opportunity of the relative open door to make the necessary standard evolution The potential interest of many manufacturers for this potential market Take the opportunity to use already existing test-bed to validate the new potential features and ensure that the evolutions are well validated Secured Wireless Products