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An Estimation Algorithm of Channel State Transition Probabilities for Cognitive Radio Systems

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6 Author(s)
Xin Long ; Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai ; Xiaoying Gan ; Youyun Xu ; Jing Liu
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In this paper, an estimation algorithm of channel state transition probabilities in Markov channel model for cognitive radio systems is proposed. The framework of POMDP is adopted to solve the problem of channel selection. Maximum likelihood method is used to estimate the channel state transition probabilities, which is crucial to POMDP. Central Limit Theorem is introduced to get the relationship between the precision, sample times and the channel state transition probability values. The simulation results show the reliability of the estimation results.

Published in:

Cognitive Radio Oriented Wireless Networks and Communications, 2008. CrownCom 2008. 3rd International Conference on

Date of Conference:

15-17 May 2008