Improved Energy Detectors for Cognitive Radios With Randomly Arriving or Departing Primary Users

被引：64
|
作者：
Beaulieu, Norman C. [1 ]
Chen, Yunfei [2 ]
机构：
[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada
[2] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England
来源：
IEEE SIGNAL PROCESSING LETTERS | 2010年 / 17卷 / 10期
关键词：
Cognitive radio; energy detector; primary user;
D O I：
10.1109/LSP.2010.2064768
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
New and improved energy detectors for cognitive radios are derived by considering the effect of the primary user traffic on spectrum sensing. The new energy detectors are designed based on the assumption that the primary user randomly arrives or departs during the sensing period. Numerical results show that the new energy detector outperforms the conventional energy detector in all the cases examined. The performance gain depends on the operating signal-to-noise ratio as well as the sample size used.
引用
收藏
页码：867 / 870
页数：4
相关论文
共 36 条
  • [21] Cooperative multiple access in cognitive radios to enhance QoS for cell edge primary users: asynchronous algorithm and convergence
    Sang-wook Han
    Hoon Kim
    Youngnam Han
    John M. Cioffi
    Victor C. M. Leung
    Jens Zander
    Telecommunication Systems, 2016, 61 : 631 - 643
  • [22] Cooperative multiple access in cognitive radios to enhance QoS for cell edge primary users: asynchronous algorithm and convergence
    Han, Sang-wook
    Kim, Hoon
    Han, Youngnam
    Cioffi, John M.
    Leung, Victor C. M.
    Zander, Jens
    TELECOMMUNICATION SYSTEMS, 2016, 61 (04) : 631 - 643
  • [23] Cooperative Spectrum Sensing with Censoring of Cognitive Radios and Improved Energy Detector under LRT Fusion
    Nallagonda, Srinivas
    Roy, Sanjay Dhar
    Kundu, Sumit
    2012 ANNUAL IEEE INDIA CONFERENCE (INDICON), 2012, : 493 - 498
  • [24] Improved Cognitive Radio Receivers Using Timing Mismatch of Primary and Secondary Users
    Sodagari, Shabnam
    Jafarkhani, Hamid
    Yousefi'zadeh, Homayoun
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2019, 66 (06) : 948 - 952
  • [25] Energy Efficient Resource Allocation for Multiple Primary and Secondary Users in Cognitive Radio Networks with Limited Primary Users' Cooperation
    Li, Qun
    Xu, Ding
    2015 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS & SIGNAL PROCESSING (WCSP), 2015,
  • [26] Cooperative Spectrum Sensing with Censoring of Improved Energy Detector Based Cognitive Radios in Rayleigh Faded Channel
    Nallagonda, Srinivas
    Roy, Sanjay
    Kundu, Sumit
    INTERNATIONAL JOURNAL OF WIRELESS INFORMATION NETWORKS, 2014, 21 (01) : 74 - 88
  • [27] An Improved Energy Detector for Mobile Cognitive Users Over Generalized Fading Channels
    Gahane, Lokesh
    Sharma, Prabhat Kumar
    Varshney, Neeraj
    Tsiftsis, Theodoros A.
    Kumar, Preetam
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2018, 66 (02) : 534 - 545
  • [28] Exploiting spatial statistics of primary and secondary users towards improved cognitive radio networks
    Riihijaervi, Janne
    Maehoenen, Petri
    2008 3RD INTERNATIONAL CONFERENCE ON COGNITIVE RADIO ORIENTED WIRELESS NETWORKS AND COMMUNICATIONS, 2008, : 424 - 430
  • [29] An Improved Power Control AFSA for Minimum Interference to Primary Users in Cognitive Radio Networks
    Lingling Chen
    Xiaohui Zhao
    Wireless Personal Communications, 2016, 87 : 293 - 311
  • [30] An Improved Power Control AFSA for Minimum Interference to Primary Users in Cognitive Radio Networks
    Chen, Lingling
    Zhao, Xiaohui
    WIRELESS PERSONAL COMMUNICATIONS, 2016, 87 (01) : 293 - 311
1234