认知无线电频谱感知技术的一种改进策略
首发时间:2016-11-29
摘要:频谱是一种稀缺的资源,然而现有的频谱分配政策导致频谱利用率低下。认知无线电是现在被认为有希望去提高频谱利用率的一种技术手段。频谱感知技术是认知无线电中的关键技术之一,因此研究频谱感知对提高频谱利用率至关重要。本文研究了现有的频谱感知技术,在经典的集中式硬判决协作频谱感知的基础上,提出了一种能极大的减少认知无线电节点与融合中心之间通讯开销且的新型协作频谱感知策略,并使用蒙特卡洛仿真证明了新策略的有效性。
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An improvement strategy for spectrum sensing technology of cognitive radio
Abstract:Spectrum is a scarce resource, but the existing spectrum allocation policy leads to low spectrum utilization.Cognitive radio is a technology that is now thought to be promising to improve spectrum utilization.Spectrum sensing technology is one of the key technologies in cognitive radio, so it is very important to study spectrum sensing to improve spectrum utilization.This paper studied the existing hard decision spectrum sensing technologies,proposed a novel cooperative spectrum sensing strategy that can greatly reduce the communication overhead between cognitive radio nodes and fusion center and use the Monte Carlo simulation to prove the effectiveness of the new strategy.
Keywords: Cognitive radio Spectrum sensing Hard decision Cooperative spectrum sensing
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No.4708279116487014****
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