Zhang, Huan and Pathirana, Pubudu 2009, Uplink power control via adaptive hmm estimation, in CD-CCC 2009 : Proceedings of the Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference, IEEE, Piscataway, N. J., pp. 5895-5900.
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Transmit power control is an important consideration in the cellular system design since it increases system capacity, improves QoS and reduces multi-user interference. In this paper, an adaptive power control design based on the identification of the underlying pathloss of the fading channel is presented. Making power control decisions based on the measured received power allows to model the fading channel pathloss dynamics with a Hidden Markov Model. Applying the online HMM identification algorithm enables accurate estimation of the real pathloss which ensures efficient performance of the suggested power control scheme.
Field of Research
090699 Electrical and Electronic Engineering not elsewhere classified