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Broadband Wireless Infrastructure

This document presents the implementation methodology for establishing broadband wireless infrastructure in Swaziland, focusing on both urban and rural connectivity. It outlines the current situation, challenges faced, and possible solutions, including the use of technologies such as WiMAX and CDMA. Key aspects include the need for network and needs assessment, site identification, and strategies to improve service quality and accessibility. The findings and recommendations aim to guide efforts for better internet access in underserved areas, ensuring sustainable development.

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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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