Broadband Wireless Infrastructure By Dsir Karyabwite ITUBDT 19
Broadband Wireless Infrastructure By Désiré Karyabwite ITU-BDT 19, May 2008 E-mail: desire. karyabwite@itu. int
Content Implementation Methodology o Swaziland Case Study Current situation Challenges o Possible solutions o Wireless broadband urban connectivity o Wireless broadband in rural areas o Conclusion and recommendations o
Implementation Methodology 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 Field Mission: o Network and Needs Assessment o Sites identification o The way forward
Swaziland Case Study - Current situation o Swaziland n n n o Surface: 17, 000 km 2 Population: 1. 3 million inhabitants Nominal GDP: E billions 16. 616 (2005) Relief: mountainous Dwelling: sparsely distributed SPTC network n n n Optical fiber : good coverage Switching and transmission: obsolete Access network: copper and WLL
Current situation (cont’d) o SPTC network (cont’d) n Internet o o o n Total BW : 10 Mbps Coverage Service quality? Electricity: satisfactory coverage
Challenges o How to provide broadband services to en-users, particularly to rural area populations? n n n Fix copper lines : costly Optical fiber: available in some areas; last mile to be completed by WLL or copper Towers: available in some areas
Project Team during the site surveys
Possible solutions o Wireless connectivity n Wi-Max (IEEE 802. 16 e, mobility) o o n Range: theoretically 50 km, in practice 15 km Bandwidth: theoretically 80 Mbps, in practice 20 Mbps (within the cell) CDMA 2000: 1 x. EVDO o o Range: theoretically 30 km, in practice 10 km Bandwidth: theoretically 2 Mbps, in practice < 2 Mbps
Configuration 1: Internet Access and V 5. 2 -Voice
Configuration 2: Internet Access and Vo. IP GTW
Configuration 2: Diagram Details
Configuration 2: Diagram Details (one possible option) - Output to Vo. IP via E 1 digital trunk from PSTN lines -Conversion from standard analog subscribers to E 1 Fixed-to-mobile conversion -Connecting old PBX to digital trunks -Etc.
Wireless Broadband Urban Connectivity
Wireless Broadband in Rural Areas
Conclusions & Recommendations o Challenges : - Internet Node –(Qo. S) - Financial $$$ (Internet Only or Internet + Voice + Mobility) o o o 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: Wi. Max - Internet Access (and mobility? )
Any question or comment? THANKS!
- Slides: 16