National Tsing Hua University Institutional Repository:Cooperative Partial Spectrum Sensing with Frequency Diversity for Cognitive Radio
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  Cooperative Partial Spectrum Sensing with Frequency Diversity for Cognitive Radio


    题名: Cooperative Partial Spectrum Sensing with Frequency Diversity for Cognitive Radio
    作者: Wen-Pin Chien;Jen-Yuan Hsu;Pang-An Ting;Yuan-Hao Huang
    教師: 黃元豪
    日期: 2009
    出版者: Institute of Electrical and Electronics Engineers
    關聯: Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on, Kanazawa, 7-9 Jan. 2009, Pages 546 - 549
    关键词: Cooperative Partial Spectrum Sensing
    Cognitive Radio
    摘要: In the cognitive radio system, one cognitive user (secondary user) has a limited capability of detecting the licensed primary user because of the hidden terminal problem; therefore, cooperation of the cognitive users is required to improve the spectrum sensing performance. Nevertheless, the cognitive users do not transmit data or voice all the time, and the idle cognitive users may consume massive spectrum sensing power instead of communication power. Therefore, we propose a partial FFT spectrum sensing method to reduce the cooperative spectrum sensing power. Moreover, we present two techniques, called detection result prediction (DRP) and decision result modification (DRM), to increase the detection accuracy based on the frequency-domain correlation and detection diversity. Simulation results show that the proposed technique can not only save about 50% computational complexity but also improve the detection performance.
    显示于类别:[電機工程學系] 會議論文


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