文章基本信息

标题：SPECTRUM SENSING IN COGNITIVE RADIOS UNDER NOISE UNCERTAINTY: DECISION MAKING USING GAME THEORY
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作者：K. Muthumeenakshi ; S. Radha
期刊名称：International Journal on Smart Sensing and Intelligent Systems
印刷版ISSN：1178-5608
出版年度：2017
卷号：10
期号：1
页码：146-173
出版社：Massey University
摘要：Energy detection is best suited for the detection of licensed users when prior knowledge aboutthem is unavailable. However, the presence of noise uncertainty refrains the use of energy detection forspectrum sensing. In this paper, we propose a refined energy detection (RED) which used dualthreshold in the presence of noise uncertainty, and combine the concepts from game theory to achievefurther performance improvements. The secondary user payoff is defined based on the primary useractivity and the strategy adopted by the secondary user. The pure strategy Nash equilibrium and thebest response for the mixed strategy Nash equilibrium are analyzed for all the possible strategiesadopted by the secondary user. Simulations results show the effectiveness of the proposed algorithm interms of greater secondary user payoff and robustness against noise uncertainty.
关键词：Cognitive Radio; Spectrum sensing; Energy Detection; Noise Uncertainty; Game Theory