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Broadband Wireless Infrastructure

Broadband Wireless Infrastructure. By Désiré Karyabwite ITU-BDT 19, May 2008 E-mail: desire.karyabwite@itu.int. Content. Implementation Methodology Swaziland Case Study Current situation Challenges Possible solutions Wireless broadband urban connectivity

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Broadband Wireless Infrastructure

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  1. Broadband Wireless Infrastructure By Désiré Karyabwite ITU-BDT 19, May 2008 E-mail: desire.karyabwite@itu.int

  2. Content • Implementation Methodology • Swaziland Case Study Current situation Challenges • Possible solutions • Wireless broadband urban connectivity • Wireless broadband in rural areas • Conclusion and recommendations

  3. Implementation Methodology Field Mission: • Network and Needs Assessment • Sites identification • The way forward The objective of the ITU Broadband Wireless Infrastructure in collaboration with Potential partners, is to establish, build, operate and maintain a broadband wireless infrastructure within identified areas of the beneficiary countries

  4. Swaziland Case Study - Current situation • Swaziland • Surface: 17,000 km2 • Population: 1.3 million inhabitants • Nominal GDP: E billions 16.616 (2005) • Relief: mountainous • Dwelling: sparsely distributed • SPTC network • Optical fiber : good coverage • Switching and transmission: obsolete • Access network: copper and WLL

  5. Current situation (cont’d) • SPTC network (cont’d) • Internet • Total BW :10 Mbps • Coverage • Service quality? • Electricity: satisfactory coverage

  6. Challenges • How to provide broadband services to en-users, particularly to rural area populations? • Fix copper lines : costly • Optical fiber: available in some areas; last mile to be completed by WLL or copper • Towers: available in some areas

  7. Project Team during the site surveys

  8. Possible solutions • Wireless connectivity • Wi-Max (IEEE 802.16e, mobility) • Range: theoretically 50 km, in practice 15 km • Bandwidth: theoretically 80 Mbps, in practice 20 Mbps (within the cell) • CDMA 2000: 1xEVDO • Range: theoretically 30 km, in practice 10 km • Bandwidth: theoretically 2 Mbps, in practice < 2 Mbps

  9. Configuration 1: Internet Access and V5.2-Voice

  10. Configuration 2: Internet Access and VoIP GTW

  11. Configuration 2: Diagram Details

  12. Configuration 2: Diagram Details (one possible option) • - Output to VoIP via E1 digital trunk from PSTN lines • Conversion from standard analog subscribers to E1 Fixed-to-mobile conversion • Connecting old PBX to digital trunks • Etc.

  13. Wireless Broadband Urban Connectivity

  14. Wireless Broadband in Rural Areas

  15. Conclusions & Recommendations • Challenges : - Internet Node –(QoS) - Financial $$$ (Internet Only or Internet + Voice + Mobility) • Core network: IP-MPLS over DWDM • Appropriate International Bandwidth (68/34 Mbps) • Transport (OF-DWDM => New Corporate Strategy?) • Switching (λ switching => New Corporate Strategy?) • Access: WiMax - Internet Access (and mobility?)

  16. Any question or comment? THANKS!

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