Wireless Standards adaptation

1. Wireless Standards adaptation Secured Wireless Products

2. 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

3. S-WiFi Secured Wireless Products

4. 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

5. 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

6. 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

7. S-WiMAX Secured Wireless Products

8. 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 CentralizedMESH) or distributed (DistributedMESH) • MAC protocol: TDM/TDMA (frames from 2.5 to 20ms) -> QoS TDD or FDD • Security: Traffic Encryption Key of 64bits Secured Wireless Products

9. 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

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

11. Subscriber Station (SS) Base Station (BS) S-WiMAX platform • Civilian standards : • IEEE 802.16d Radio board • Topology : • PMP (Point to MultiPoint) Modem board -> MAC Real Time 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

12. 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

13. 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 N E C T E U R PCI C O N N E C T E U R C O N N E C T E U R C O N N E C T E U R ASIC (PHY) Power 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

14. 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

15. 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