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An Enhanced Reverse-link Traffic Control and its Performance Analysis in cdma2000 1xEV-DO Systems  

Yeo, Woon-Young (세종대학교 정보통신공학과 이동통신시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.9A, 2008 , pp. 891-899 More about this Journal
Abstract
The cdma2000 1xEV-DO system controls the data rates of mobile terminals based on a binary overload indicator from the base station and a simple probabilistic model. However, this traffic control scheme has difficulty in controlling the reverse-link traffic load effectively and in guaranteeing a stable operation of the reverse link because each mobile terminal determines the next data rate autonomously. This paper proposes a new trafRc control scheme to improve the system stability, and analyzes the proposed scheme by modeling it as a discrete-time Markov process. The numerical results show that the maximum data rate of the proposed scheme is much higher than that of the conventional one. Moreover, the proposed scheme does not modify the standard physical channel structure, so it is compatible to the existing 1xEV-DO system.
Keywords
Traffic control; cdma2000 1xEV-DO; Performance analysis; Multiple access control;
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