Wireless Standards adaptation

Secured Wireless Products

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Wireless Standards adaptationWireless Standards adaptation

Secured Wireless Products2

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Targets of the approachTargets of the approach

Analyze the Wireless StandardsAnalyze the Wireless Standards

(eventually participate in and influence the (eventually participate in and influence the standardization)standardization)

Apply the Apply the simplestsimplest modifications for modifications for optimizedoptimized operations in sensitive and operations in sensitive and dedicateddedicated applications :applications : At a minimal costAt a minimal cost With a reasonable delayWith a reasonable delay Without changing the base of the StandardWithout changing the base of the Standard ……


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S-WiFiS-WiFi


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S-WiFi features S-WiFi features Civilian standards :Civilian standards :

o 802.11b/g

In dedicated frequency bands :In dedicated frequency bands :

o 2 – 6 GHz

30dBm and directional 30dBm and directional antennas:antennas:

=> Improved range :=> Improved range :

> 2 km @ 11 Mbps

(in free space conditions)

Modes :Modes :

o AP, repeater

o Bridge

o Ad hoc


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S-WiFi Ad hoc mode and dynamic routing S-WiFi Ad hoc mode and dynamic routing

Network characteristicsNetwork characteristicso Ad hoc architecture (no infrastructure required)

o Nodes can be mobile

o Relaying for coverage extension

o 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)Performances with 802.11b mode (11Mbps radio data rate)

o Up to 4 Mb/s radio (end-to-end) in urban area, with one relay (2 hops)


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Comments on S-WiFi Comments on S-WiFi

Based on a WiFi core: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.


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S-WiMAXS-WiMAX


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IEEE 802.16d Standard 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


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Standard IEEE 802.16eStandard IEEE 802.16e802.16d 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.


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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

Secure Hot Spots for Police HQ, Fire-station, …

Secure videosurveillancein urban environment

S-WiMAX potential applicationsS-WiMAX potential applications


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S-WiMAX platform S-WiMAX platform

Civilian standards :Civilian standards :

o IEEE 802.16d

Low-latency TDMA-based links

Base Station (BS)Base Station (BS)

Subscriber Subscriber Station (SS)Station (SS) ModemModem board board

-> MAC Real Time-> MAC Real Time

Topology :Topology :

o PMP (Point to MultiPoint)

RadioRadio board board

ProcessorProcessor board board-> Scheduler-> Scheduler

BW: 1.75, 3.5, 7 and 10MHz

Modulation: OFDM-256

(BPSK, QPSK, QAM16, QAM64) RF: [5.15 – 5.85GHz]


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S-WiMAX added-value functionsS-WiMAX added-value functions

Frequency HoppingFrequency Hopping Overall BW up to 300MHzOverall BW up to 300MHz 400 hops/s400 hops/s ……

MESH centralizedMESH centralized Not available in COTSNot available in COTS Relaying at level 2 of the protocol stackRelaying at level 2 of the protocol stack ……

MESH distributedMESH distributed

Cross-layer dynamic routing (layers 3 + 2)Cross-layer dynamic routing (layers 3 + 2)


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Possible levels of modificationsPossible levels of modifications

GPP(UMAC)

FPGA(LMAC)

ASIC(PHY)

RF

CONNECTEUR

CONNECTEUR

PCICONNECTEUR

PCICONNECTEUR

Ethernet

RS-232

Power

General Purpose Processor

Half Size PCI Card

OFDM Digital

Half Size PCI Card

RF Analog

Half Size PCI Card

Antenna

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

RF level: Tailored radio


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S-WiMAX approachS-WiMAX approach

Either based on WiMAX systems (BS and CPE):Either based on WiMAX systems (BS and CPE): Limited modifications due to the priority of mass-market Limited modifications due to the priority of mass-market

road-maproad-map

Or based on WiMAX chipset: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


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S-WiMAX recommendationS-WiMAX recommendation

Discuss the opportunity to push for a standardisation Discuss the opportunity to push for a standardisation activity within IEE to cover a new 802.16 additional activity within IEE to cover a new 802.16 additional standard to address the aviation airport needsstandard 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

Wireless Standards adaptation

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