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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，主用户和认知用户仿真代码，可以根据需要加入多个主用户和认知用户等。matlab的实现-Cognitive radio system, the primary users and cognitive user simulation code, as needed into a number of primary users and cognitive users. matlab implementation
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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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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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Cognitive Radio Primary User Detection
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binary information regarding matlab code for cognitive radio. primary user and secondary users sense the spectrum using co operative sensing scheme
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binary information regarding matlab code for cognitive radio. primary user and secondary users sense the spectrum using co operative sensing scheme
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binary information regarding matlab code for cognitive radio. primary user and secondary users sense the spectrum using co operative sensing scheme
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Unnikrishnan, Veeravalli - 2011 - Cooperative spectrum sensing for primary user detection in cognitive radio
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In last decades, the demand of wireless spectrum has
increased rapidly with the development of mobile communication
services. Recent studies recognize that traditional fi xed spectrum
assignment does not use spectrum effi ciently. Suc
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认知无线电中的主用户的能量检测，非协作检测，Rayleigh衰落信道下-Cognitive radio, primary user detection, under Rayleigh channel
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认知无线电主用户信号为BPSK信号在不同信噪比下的检测概率和虚警概率-Cognitive radio primary user signal is BPSK signals in different SNR detection probability and false alarm probability
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Matlab code for Received power by secondary User due to primary user in cognitive radio
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study primary user emulation
attacks (PUEA) issue in a cognitive radio network. Most
literatures about the PUEA discuss methods to deal with the
attacks in a system model where the positions of the primary
user and secondary users are fixed
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This paper considers primary user emulation
attacks in cognitive radio networks operating in the white spaces
of the digital TV (DTV) band
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Primary user emulation (PUE) attacks on cognitive radio networks pose a serious threat to the deployment of this
technique. Previous approaches usually depend on individual or combined received signal strength (RSS) measurements
to detect emulato
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to check whether primary user is present or not
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primary and secondary user creation in cognitive radio
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三个主用户信道，到达率λ1，服务率μ1。全被主用户占满时，再有主用户进入会形成阻塞block1；三个次级用户信道，到达率λ2，服务率μ2。全被次级用户占满时，再有次级用户进入会形成阻塞block2；主用户拥有优先权，但只能使用自己的信道；次级用户在感知主用户信道空闲时，可以占用。但有主用户进入时必须让出，导致掉线drop。-Three primary user channel, the arrival rate λ1, service rate μ1. When all were filled
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