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首页> 外文会议>Annual IEEE India Conference >Cooperative spectrum sensing with censoring of cognitive radios and improved energy detector under LRT fusion
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Cooperative spectrum sensing with censoring of cognitive radios and improved energy detector under LRT fusion

机译：基于认知收音机抗思的协作光谱感应，并在LRT融合下改进的能量探测器

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In this paper, performance of cooperative spectrum sensing (CSS) with likelihood ratio test (LRT) fusion at fusion center (FC) has been assessed in the presence of Rayleigh fading. Improved energy detector (IED) with multiple antennas has been used at each cognitive radio (CR) user where selection combining (SC) of decisions received from multiple antennas. Censoring of CR users has been considered based on quality of the reporting channels between CR users and a FC. Performance in terms of missed detection is evaluated for various values of improved energy detector parameter and number of antennas at each CR user. The performance in terms of total error probability has also been estimated for different values of normalized detection thresholds, sensing and reporting channel SNRs under both perfect and imperfect channel estimation.
机译：本文在瑞利褪色的存在下，已经评估了融合中心（FC）的偏见比率试验（LRT）融合的协同谱检测（CSS）的性能。 具有多个天线的改进的能量检测器（IED）已被用于每个认知无线电（CR）用户，其中从多个天线接收的决定的选择组合（SC）。 基于CR用户与FC之间的报告渠道的质量，已考虑CR用户的审查。 在错过检测方面的性能被评估用于改进的能量检测器参数和每个CR用户的天线数的各种值。 在完美和不完美的信道估计下，还估计了在完美和不完美信道估计下的归一化检测阈值，感测和报告信道SNR的不同值的总误差概率。

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