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引用次数: 6
摘要
在无线通信领域中,频谱的有效利用是一个大问题,它引入了频谱稀缺问题。认知无线网络(Cognitive Radio Network, CRN)技术解决了这一问题。频谱提供给优先级最高的Primary user (Primary user), Secondary user (Secondary user)可以在未被PU使用的地方机会访问license频段。CRN提高了频谱利用效率,因此近年来对该技术的需求越来越大。CRN需求的增加引起了能源消耗问题。本文详细介绍了CRN中能量最小化的算法、协议和方法。
In the field of wireless communication effective utilization of spectrum is the big issue which introduces the spectrum scarcity problem. This has been resolved by Cognitive Radio Network (CRN) technology. Spectrums are available for Primary Users (PUs) with highest priority and Secondary Users (SUs) can opportunistically access license band wherever it is not in used by PU. CRN increases the efficiency of spectrum utility hence recently this technology is more demanded. The increasing demand of CRN causes energy consumption issue. This paper meticulously recaps on algorithms, protocols, methods for energy minimization in CRN.