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Reverse link rate control for high-speed wireless systems based on traffic load prediction  

Yeo, Woon-Young (Department of Information and Communication Engineering, Sejong University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.45, no.11, 2008 , pp. 15-22 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 control scheme has difficulty in predicting the future behavior of mobile terminals due to a probabilistic uncertainty and has no reliable means of suppressing the traffic overload, which may result in performance degradation of CDMA systems that have interference-limited capacity. This Paper proposes a new traffic control scheme that controls the data rates of mobile terminals effectively by predicting the future traffic load and adjusting the forward-link control channel. The proposed scheme is analyzed by modeling it as a multi-dimensional Markov process and compared with conventional schemes. The numerical results show that the maximum cell throughput of the proposed scheme is much higher than those of the conventional schemes.
Keywords
rate control; cdma2000 1xEV-DO; performance analysis; multiple access control;
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  • Reference
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