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WIRELESS BROADBAND ACCESS “ WBA ”

ITU /BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5 May 2004. WIRELESS BROADBAND ACCESS “ WBA ”. Tunisie Télécom. SLAHEDDINE MAAREF TUNISIE TELECOM. SOMMA RY. Market Overview D e finition A pplications a d vantages WBA Technologies

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WIRELESS BROADBAND ACCESS “ WBA ”

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  1. ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5 May 2004 WIRELESS BROADBAND ACCESS “WBA” Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM

  2. SOMMARY • Market Overview • Definition • Applications • advantages • WBA Technologies • Tunisie Telecom WBA Project • Comparative Study for Broadband Access :

  3. Market overview 1 • Forcast on Bandwith Demand shows that all users need more and more bandwith • According to the « sophisticated » multimidia applications they are using, residential subscribers are asking for high speed internet.

  4. Market overview 2 • Tariffs for broadband services are decreasing around the world. • The boom of the broadband market is coming. • Operators have to prepare infrastructure to face demands every where.

  5. Market Overview 3 • Operators today problem : Availability & Quality of Access Network • xDSL technologies are not available and suitable every where • Deployment of xDSL technologies depends on the quality and coverage of existing wired network

  6. Definition 1 Wireless Broadband Access (WBA) is a new solution based on point to multipoint radio distribution to provide broadband access.

  7. Definition 2 It comes as attractive and innovative alternative for conventional broadband connections based on traditional copper links.

  8. Definition 3 Wireless Broadband Access (BWA) is used to provide broadband services to suburban and remote users (Voice, Data, High speed Internet).

  9. Access Network

  10. PSTN IP Network Router Gateway IAP Local Exchange Wireless solution • Internet et voix simultanés • Net Data rate: jusqu‘à 2 Mbps • 2000 utilisateurs par station de base • Portée de 50 Kms • Internet Access Point

  11. Wireless for telephony • High quality voice with MOS > 4 • Fax G3 (14.4 Kbit/s) • Modem V.90 (56 kbit/s) • Bit error rate BER <= 10-4 • Pay phones • Supplementary services

  12. And for Internet.... • Débits allant à 512 Kbps • Bit error rate BER <= 10-6 • Connection permanente • Système transparent au dessus de la couche 2

  13. Téléphony & Internet

  14. cellular configuration to got more capacity

  15. Typical applications of BWA • Big enterprises managing important telecommunication traffic such as Call Centers located on suburban areas. • Other Applications such as : • Internet Network Permanent Access • Multichannel video entertainment programming (similar to land based cable television).

  16. IP Frame Relay LL PSTN RNIS Typical Network Architecture Ethernet 100 Base T Interface V5.2 Station de base & Contrôleur de station de base Station Centrale Station de Gestion

  17. Frame Relay Lignes spésialisées LAN RTCP RNIS TCP/ IP TypicalNetwork Architecture (Cd) Routeur E1 Terminale SU PABX Interface V5.2 Station de base E1 Routeur Ethernet 10 Base T Station de Gestion

  18. Advantages of BWA • BWA may be profitable compared to wired lines in areas with low density • Wireless network deployment is progressive : • Gradual deployement • minimum market risks. • Time to market is shorter than wired network .

  19. ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5 May 2004 Wireless Broadband Access Technologies

  20. Wireless Broadband Access Technologies LMDS technology LMDS solution (Local Multipoint Distribution Service). LMDS combines voice and data in order to offer a wide range of broadband communication services. LMDS systemfocuses first onSmall and Medium Enterprises.

  21. LMDS Specifications • IEEE Standard : 802.16.1 • Access type : OFDM • Frequency : • 27.5-28.35 GHZ • 31.0-31.30 GHZ • Bit rate : from5 Mb/sto1.25 Gb/s (with dynamic allocation) • Covering : 5km • Services : voice, data ( Internet, LL, VPN, Frame Relay, Broadcast,...).

  22. Wireless Broadband Access Technologies (Cd) MMDS Technology • Microwave Multipoint Distribution System (designed to serve small geographic area ). • MMDS system focusesfirst onSmall and Medium Enterprises.

  23. MMDSSpecifications • IEEE Standard : 802.16.3 • Access type : OFDM • Frequency : • 2.1-2.2 GHZ • 2.5-2.7 GHZ • Bit rate : from3 Mb/sto1 Gb/s • range : 35km (with non line-of-sight). • Services : voice, data ( Internet, LL, VPN, Frame Relay, Broadcast,...).

  24. Wireless Broadband Access Technologies (Cd) W_CDMA technology Multi-services broadband access networkwith point-multipoint radio distribution using CDMA access techniques. W_CDMA to provide wireless connections up to 1 Mb/s.

  25. W-CDMA specifications • Access type : CDMA • Frequency band : • 3.4-3.6 GHZ • 3.5-3.7 GHZ • Bit rate : until512 kb/s • Couvering : 25km(with non line-of-sight • Services: voice, data ( Internet, LL, VPN, Frame- Relay, Broadcast,...).

  26. Tunisia Telecom WBA Projet

  27. Objective Network configuration Scope of Projet

  28. Project Objective • Built a WBA network to provide the following services : • Internet high speed access (up to 512 Kb/s down link, up to 128 Kb/s up link). • ISDN Accès (2B+D). • Frame Relay Accès. • LL Accès (64 Kb/s & 128 Kb/s). • Voice sevices

  29. Project Description • Installation of : • 3 base stations BSs • 1 BSCs • 1 Central Station • 600 of Different types of Subscriber Terminal Equipement : • 1 Line high speed Internet asymétric + 2 Telephone Lines • 1 ISDN Line (2B+D). • 1 LL 128 Kb/s or 2*64 Kb/s. • 2 Téléphone lines

  30. Project Description • Areas to be covered by WBA : • Zone South Hammamet • North suburbs of Tunis • South suburbs of Tunis (Ouardia)

  31. Network Architecture

  32. IP Frame Relay LL PSTN RNIS Network Architecture Ethernet 100 Base T Interface V5.2 Station de base & Contrôleur de station de base Station Centrale Station de Gestion

  33. Scope of Projet

  34. Scope of projet • 400 High speed Internet (128 to 512 Kb/s for down link & 32 to 128 Kb/s up link). • 50 accès Frame Relay 64 & 128 Kbit/s • 50 accès LL 64 & 128 Kbit/s • 50 accès ISDN (2B+D) • 50 téléphone lines

  35. COST COMPARAISON WBA < > Wired ADSL For suburban areas

  36. Cost calculation of ADSL wired access Assumption   we use 4 km + 2 km (primary + secondary) of undergrounded copper cable (0.6mm) to prvide ADSL access for 20 suburban subscribers. We use small capacity DSLAM & ADSL modem

  37. Average cost of cable (6km) 2500 dinars Cost of ADSL terminal 100 dinars Cost of one DSLAM port 100 dinars Total 2700 Dinars Cost calculation of ADSL wired access (Cd) • The average cost per ADSL wired access = 2700 DT

  38. Cost of a small WBA network (200 accèss) 500 000 Dinars Average cost of one WBA 2500 Dinars • Cost calculation of WBA_CDMA access

  39. COST COMPARAISON For suburban areas WBA < > Wired ADSL 2500 DT < > 2700 DT

  40. Conclusion The optimal Broadband solution to connect suburban users depends on distanses (geographical distribution) and number of subscribers. The main advantages of WBA are time to market and easy re-use.

  41. شكرا Thank you

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