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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  >  Throughput maximization for cognitive radio networks with wideband spectrum sensing


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83659


    Title: Throughput maximization for cognitive radio networks with wideband spectrum sensing
    Authors: Chin-Liang Wang;Han-Wei Chen;Zong-Ying Tsai
    教師: 王晉良
    Date: 2012
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: Proceedings of the 2012 IEEE Wireless Communications and Networking Conference (WCNC 2012), Paris, France, 1-4 April 2012, Pages 1293 - 1298
    Keywords: cognitive radio networks
    wideband spectrum sensing
    Abstract: Spectrum sensing is an important issue in cognitive radio (CR) networks. In a periodic sensing frame structure, the spectrum sensing performance and the protection to the primary network improves while the sensing time increases. However, the longer the sensing time, the lower the throughput the CR network can achieve. In this paper, we formulate an optimization problem to balance the sensing-throughput tradeoff for a CR network with wideband spectrum sensing, where the combined aggregate throughput for all the two possible scenarios (instead of only one scenario used in previous related works) of the CR network is maximized under a given interference imposed on the primary network. To reduce the computational complexity, we further present a two-stage iterative algorithm to solve the optimization problem. Simulation results show that the achievable aggregate throughput of the proposed approach is much higher than those of the previous related works.
    Relation Link: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83659
    Appears in Collections:[電機工程學系] 會議論文
    [通訊工程研究所] 會議論文
    [電腦與通訊科技研發中心] 會議論文

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