Spectrum Sensing for Multiuser Network Based on Free Probability Theory
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概要
- 論文の詳細を見る
Based on Free Probability Theory (FPT), which has become an important branch of Random Matrix Theory (RMT), a new scheme of frequency band sensing for Cognitive Radio (CR) in Direct-Sequence Code-Division Multiple-Access (DS-CDMA) multiuser network is proposed. Unlike previous studies in the field, the new scheme does not require the knowledge of the spreading sequences of users and is related to the behavior of the asymptotic free behavior of random matrices. Simulation results show that the asymptotic claims hold true even for a small number of observations (which makes it convenient for time-varying topologies) outperforming classical energy detection scheme and another scheme based on random matrix theory.
- （社）電子情報通信学会の論文
- 2010-01-01
著者
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Wang Lei
Institute Of Botany Academia Sinica
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Chen Chao
Department Of Electronics Engineering Pusan National University
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Wang Lei
Institute Of Signal Processing And Transmission Nanjing University Of Posts And Telecom
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ZHENG Baoyu
Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecom.
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MENG Qingmin
Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecom.
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Chen Chao
Department Of Electrical And Computer Engineering Stevens Institute Of Technology
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Zheng Baoyu
Institute Of Signal Processing And Transmission Nanjing University Of Posts And Telecom
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Meng Qingmin
Institute Of Signal Processing And Transmission Nanjing University Of Posts And Telecom
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Chen Chao
China Academy Of Space Technology
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