無線感知網路減少干擾的頻道分配演算法

Interference-Aware Channel Allocation Algorithm with Game Theoretic Approach for Cognitive Radio Networks

吳宗憲

指導教授 ： 許健平

國立清華大學/電機資訊學院/資訊工程學系/碩士(2013年)

摘要

近年來，透過無線感知技術(Cognitive Radio)使得網路表現越加有效率，主要是因為允許主要使用者(Primary Users)在不使用頻道的期間，能將頻道分配給非主要使用者(Secondary Users)。但由於無線行動產品的增加以及使用者的遞增，頻道分配(Channel Allocation)問題逐漸成為一個重要的研究的議題。在本篇論文中，我們藉由賽局理論的策略，提出一個在無線感知網路中減少干擾的頻道分配演算法。我們證明提出的演算法在賽局理論的策略中能夠達到奈許均衡(Nash Equilibrium)。經由模擬的結果，我們的演算法在有干擾的感知網路中與之前的研究方法相比有較好的成效。

關鍵字

無線感知網路 ； 頻道分配問題 ； 賽局理論 ； 奈許均衡 ； 頻道干擾

並列摘要

Cognitive radio users are allowed to utilize unused portions of the licensed spectrum, which leads to performance enhancement. With more and more wireless devices and users, the channel allocation problem has become an important issue in the cognitive radio networks. In this paper, we propose an interference-aware channel allocation algorithm with game theoretic approach. We prove our proposed algorithm can achieve Nash Equilibrium convergence in the game theory. With the results of simulations, our proposed algorithm has better performance than previous work.

並列關鍵字

Cognitive radio networks ； channel allocation ； game theory ； Nash equilibrium ； co-channel interference

參考文獻

[1] Amiotosh Ghosh and Walaa Hamouda, “Cross-Layer Antenna Selection and Channel Allocation for MIMO Cognitive Radios,” IEEE Transactions on Wireless Communication, Vol. 10, No.11, Pp. 3666-3674, November 2011.

[2] Dan Xu, Eric Jung, and Xin Liu, “Efficient and Fair Bandwidth Allocation in Multichannel Cognitive Radio Networks,” IEEE Transactions on Mobile Computing, Vol. 11, No. 8, Pp. 1372-1385, August 2012

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