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A Survey of Spectrum Sensing Algorithms The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper, a survey
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认知无线电系统中多载波信号带外干扰的抑制,采用载波加权的方法降低认知无线电系统中认知用户信号对主用户信号的干扰
-Cognitive radio system in multi-carrier signal-band interference suppression, the use of carrier-weighted ways to reduce cognitive cognitive radio system users on the primary user signal sign
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Cognitive radio frequency spectrum detection-The spectrum sensing of a wideband frequency range is studied by dividing it into multiple subbands.
It is assumed that in each subband either a primary user (PU) is active or absent in a additive white
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adaptive spectrum sensing using SNAR comparioson and relative doppler shift (effect) between primary and secondary user
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认知无线电技术的提出是为提高频谱利用率,而认知无线实现的关键技术是频谱感知,众所周知协作检测提高了衰落环境中认知用户系统检测的性能,该文章是基于协作检测提出新的检测方案,利用了双门限方法提高了系统性能,兼顾带宽有限和增强性能两个方面,是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。-In this paper, we employ a double threshold method in energy detector to perform spectrum sensin
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Unnikrishnan, Veeravalli - 2011 - Cooperative spectrum sensing for primary user detection in cognitive radio
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The spectrum sensing problem has gained new
aspects with cognitive radio and opportunistic spectrum access
concepts. It is one of the most challenging issues in cognitive
radio systems. In this paper, a survey of spectrum sensing
methodologie
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In this paper we uate the performance of cooperative spectrum sensing (CSS) where
each cognitive radio (CR) employs an improved energy detector (IED) with multiple antennas and
uses selection combining (SC) for detecting the primary user (PU) in
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频谱感知需要的认知无线电中顺序,寻找机会频谱的灵活使用。此外,它是干扰的管理造成水平的关键向初级用户 (PUs) 的频谱。遥感提供了
无线电操作环境的意识。认知电台可然后适应它的参数如载波频率电源和波形动态调整提供最好的服务可用的连接,以满足用户的需求范围内
对干扰约束。无线通信系统中,我们通常有一些对波形的知识和结构或统计属性的信号的频谱的主要用户使用。这种知识可能相关的调制
计划、 符号或芯片的信号,通道的速率。(Spectrum sensing requires the order
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