期刊
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
卷 62, 期 6, 页码 2570-2578出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2013.2244622
关键词
Energy detection (ED); interference; spectrum sensing
In this paper, we study the effect of secondary-user (SU) interference on the performance of a sensing node in a multiuser dynamic spectrum access network. We modify the traditional binary hypothesis problem to account for the interference generated within such a network and characterize the effect of various parameters on the overall performance of the sensing node. Specifically, we note that computing the average false-alarm probability through a direct method is generally tasking; therefore, we adopt a simplified approach to averaging out the random interferer power in terms of the moment-generating functions (MGFs). To this end, new and accurate expressions have been developed to calculate the false-alarm probability of a sensing node employing energy detection under SU interference.
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