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首页> 外文会议>Information Sciences and Systems, 2009. CISS 2009 >Impact of secondary MAC cooperation on spectrum sharing in cognitive readio networks
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Impact of secondary MAC cooperation on spectrum sharing in cognitive readio networks

机译：辅助MAC合作对认知无线电网络中频谱共享的影响

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In this paper, the impact of secondary MAC cooperation on the sum-throughput of multichannel cognitive radio networks is studied. The main goal is twofold: Given the primary and secondary users' duty cycle, (i) investigate the amount of spectrum sharing (i.e., number of secondary users) that maximizes the sum-throughput in the presence of secondary MAC cooperation; (ii) assess the performance gains attainable with cooperation. First, analysis is provided for the idealistic case of perfect sensing, with a simple model for secondary cooperation. Then, for the more strategies case of imperfect sensing, novel cooperative secondary strategies are proposed that are shown to provide relevant performance gains in terms of sum-throughput. Finally, numerical simulation results are provided to evaluate the performance of the cooperative schemes relative to other non-cooperative schemes.
机译：本文研究了二级MAC协作对多通道认知无线电网络总和的影响。主要目标是双重的：鉴于主要和次要用户的占空比，（i）研究在存在次要MAC合作的情况下使总吞吐量最大化的频谱共享量（即次要用户数）； （ii）评估通过合作可获得的绩效提升。首先，通过一个简单的二次合作模型，为理想传感的理想情况提供了分析。然后，对于不完美感测的更多策略情况，提出了新颖的合作辅助策略，这些策略在总吞吐量方面显示出相关的性能提升。最后，提供了数值模拟结果，以评估合作方案相对于其他非合作方案的性能。

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