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Dynamic Call Admission Control in WCDMA System with Traffic Asymmetry  

Kim, Se-Ho (한국과학기술원 전자전산학과 통신신호처리연구실)
Kim, Hyung-Myung (한국과학기술원 전자전산학과 통신신호처리연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.8B, 2002 , pp. 752-759 More about this Journal
Abstract
The capacity of the cell varies with the load of the home and neighboring cells. But most call admission control (CAC) algorithms do not consider the cell loading. In this paper a dynamic call admission control is proposed in a WCDMA system with traffic asymmetry. The proposed algorithm changes the CAC thresholds of new call and handoff call based on channel condition. The blocking and dropping probabilities can be controlled by adjusting these thresholds. The proposed algorithm guarantees the Qos of call class and priority between new call and handoff call. In addition, it can minimize the grade of service (GOS) value with the system throughput maintained.
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