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Analysis of call blocking probability and queuing modeling using call admission control in the CDMA system with the WLAN  

안치훈 (연세대학교 전기전자공학과)
기영민 (연세대학교 전기전자공학)
김동구 (연세대학교 전기전자공학)
류승문 ((주)카서)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.4, 2004 , pp. 17-24 More about this Journal
Abstract
Call blocking probabilities of streaming data service in CDMA system with access point(AP) of WLAN are analyzed for different cell geometry of base station and AP and queuing is modeled. The considered system leads to successful handoffs between the APs of WLAN. Blocking probabilities are enumerated as a function for ratio of base station and AP sizes, their locations and the number of buffer in the queue. Results show that blocking probability is not influenced by base station and AP locations but mainly by ratio of their sizes. For CDMA system of radius 100m, 5 buffers in the queue and 7㏈ noise rise(NR), in order to obtain 1% call blocking probability, a cell with hot spot of radius 20m has more 0.6Erlang than that of radius 60m.
Keywords
3G-CDMA interworking; blocking probability; handoff; call admission control; queueing modeling;
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