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首页> 外文期刊>AEU: Archiv fur Elektronik und Ubertragungstechnik: Electronic and Communication >Cluster based power efficient cooperative spectrum sensing under reduced bandwidth using location information
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Cluster based power efficient cooperative spectrum sensing under reduced bandwidth using location information

机译：使用位置信息在带宽减少的情况下基于集群的高效节能协作频谱感知

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摘要

Frequency spectrum sharing between licensed primary users (PUs) and unlicensed secondary users (SUs) requires the SUs to reliably detect the spectrum occupancy. Due to multipath fading, single terminal detection is unreliable and results in a high probability of missed detection. This is solved by applying cooperative detection. However, when the number of SUs is large, the bandwidth for reporting their sensing results to the common receiver will be very huge. In this paper, we propose an improved frequency divisional cluster based cooperative spectrum sensing based on the location information which employs a censoring method to reduce the average number of sensing bits sent to the common receiver. The reduction in the number of sensing bits using proposed method in turn reduces the total transmission power of the secondary users in the cognitive network thus improving its battery life.
机译：许可的主要用户（PU）和非许可的辅助用户（SU）之间的频谱共享要求SU可靠地检测频谱占用。由于多径衰落，单终端检测是不可靠的，并且导致错过检测的可能性很高。通过应用协作检测可以解决此问题。然而，当SU的数量很大时，用于将其感测结果报告给公共接收机的带宽将非常大。在本文中，我们基于位置信息提出了一种改进的基于频分簇的协作频谱感知方法，该频谱信息采用一种检查方法来减少发送给公共接收器的感知比特的平均数量。使用所提出的方法来减少感测比特的数量又减少了认知网络中次要用户的总传输功率，从而提高了其电池寿命。

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