1. Wireless Applications and Effect on IFE Ken Brady Chief Design Engineer Thales Avionics

2. Wireless Topics for IFE Connectivity –PicoCell Service (voice and data) –Wireless Data (802.11b/g) Wireless IFE –AVOD Not Ready for World-Wide Deployment Content Delivery and Update

3. Wireless Technologies Voice Technologies Broadcast (Audio/Video) Technologies Data Technologies

4. Wireless Voice Technologies Designed for Human Voice –CDMA, TDMA, GSM Long Range (miles) Connection Based Service –Dedicated “channel” Adopting Packet Data Capability

5. Wireless Broadcast Technologies Digital Video Broadcast (DVB) DVB-S Satellite DVB-C Cable DVB-T Terrestrial TV DVB-H Handhelds Advanced TV Systems Committee (ATSC) Limited Back-Channel Capability

6. Wireless Data Technologies wPANs, wLANs, wWAN –wPAN: Wireless Personal Area Network –wLAN: Wireless Local Area Network –wWAN: Wireless Wide Area Network

7. wPAN Short Range Servicing your Personal Area –Printers, Mouse, Keyboard, Headsets Standards –Bluetooth / IEEE802.15.1 –ZigBee / IEEE 802.15.4 –Wireless USB –Ultra Wideband (UWB) / WiMedia

8. wLAN Medium Range service (30-50 Meters) Applicable Standards –IEEE 802.11b (2.4 GHz) –IEEE 802.11g (2.4 GHz) –IEEE 802.11a (5 GHz) –IEEE 802.11n (2.4 & 5 GHz) –HIPERLAN, HIPERLAN/2

9. wWAN Long Range Service (3-18 Miles) New Data Network Technology –802.16, 802.16e Technology Migration –GSM EDGE, UMTS W-CDMA

10. Important Characteristics Operate over a Shared Media (air) –Multi-user Conflicts More Users, Less Bandwidth Conflicts with Other Systems in same Frequencies –Frequency Issues Licensed vs. Unlicensed Frequencies Adaptive, Best Effort –Adjust Speed to Maintain Error Rate –Error Threshold Based on Service Expectations

11. Wireless Std.Speed (theory)Speed (actual)RangeComment CDMA-RTT0.307 Mbps0.125 Mbps18 mi2G Phone CDMA-EV-DO2.4 Mbps0.600 Mbps18 mi3G Phone GSM GPRS0.080 Mbps0.014 Mbps16 mi2G Phone GSM EDGE0.474 Mbps0.034 Mbps16 mi3G Phone UMTS-w-CDMA14.4 Mbps0.75 Mbps18 mi4G Phone IEEE 802.16e70 Mbps10-20 Mbps3-5 miWiMax IEEE 802.11b11 Mbps6 Mbps30 metersWiFi IEEE 802.11a/g54 Mbps20 Mbps30 MetersWiFi IEEE 802.11n200 Mbps50-70 Mbps50 Meters Actual vs. Theoretical

13. Content Characteristics Size –Text Data, Short Subject, Feature Length –Encoding Standard (MPEG-1, MPEG-2, MPEG-4) Quantity –2 Hour Audio, 10s Hours Video, 100s Hours AVOD Refresh Rate –Daily, Weekly, Monthly, Quartly, Semi-permanent

14. Typical Content Profiles Content TypeLengthMPEG-1MPEG-2MPEG-4 Short Subject10 min132 MBytes282 MBytes90 MBytes TV Short23 min304 MBytes649 MBytes207 MBytes TV Long43 min568 MBytes1.2 GBytes387 MBytes Movie Short90 min1.2 GBytes2.5 GBytes810 MBytes Movie Long3 hours2.4 GBytes5 GBytes1.6 GBytes Small Load10 hours8 GBytes17 GBytes5.4 GBytes Medium Load30 hours24 GBytes51 GBytes16 GBytes Large Load100 hours79 GBytes169 GBytes54 GBytes

15. Wireless Loading Methods Incremental Content Loading –Program by Program –Restart Mid Transfer –Error Detection and Recovery Practical Loading Times –< 30 min – immediately available –< 180 min – long gate stay –< 1800 min – opportunistic, multisession loading during extended timeperiod

16. Wireless Loading Times (MPEG-2) TypeLenGPRSEDGEEVDOUMTS.16e.11b.11a/g.11n Short Sub10 m470791632621 TV Short23 m108118236641442 TV Long43 m341671182784 Movie Short90 m714141241756178 Movie Long3 h142828247341133417 Small Load10 h94015711337611356 Med Load30 h28204703381128336169 Large Load100 h1567112837601128564 Short Gate Visit Long Gate VisitImpractical Incremental Load over Month Single Content Load No Conflicts

17. Wireless Loading Times (MPEG-4) TypeLenGPRSEDGEEVDOUMTS.16e.11b.11a/g.11n Short Sub10 m15025511211 TV Short23 m345581221511 TV Long43 m6451092243931 Movie Short90 m135022845851853 Movie Long3 h45690151136115 Small Load10 h151930050361203618 Med Load30 h90015010836010854 Large Load100 h5003601200360180 Short Gate Visit Long Gate VisitImpractical Incremental Load over Month Single Content Load No Conflicts

18. One Size Does Not Fit All Wireless Technology Is Effective at: –Supporting Small Content Updates –Supporting Larger Updates Spread Out in Time Not Needed Immediately Wireless Technology is Not Effective at: –Large Content Updates –Medium Size Updates Needed Immediately

19. Security Balancing Protection and Use –An item is most secure if no one can get to it (but it’s also not very useful)

20. Thwarting The Hacker –Can He Tell Its There Hide the Link to Reduces Detection –Can He Get It Authentication Used to Prevent Requests –Can He Make Sense of It Encryption Used to Make it Unusable –Can He Prevent My Proper Use Denial of Service Attach (DoS)

21. Security Methods Layers of Security in Wireless Networks –Hidden Identity, Reduced Announcement –Link Encryption (WEP, WPA, WPA2) –Authentication (RADIUS) –Content Encryption (WAEA0403) File Encryption Essence Encryption

22. Questions

23. The Alphabet Soup CDMA – Code Division Multiple Access W-CDMA – Wideband CDMA GSM – Global System for Mobile Communications EDGE – Enhanced Data Rates for GSM Evolution UMTS – Universal Mobile Telephone System EV-DO – Evolution Data Optimized (Evolution Data Only)