认知无线电网络的频谱感知技术分析

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1、requiretoreportperceptualresultsinaspecifictime,thusgreatlyreducingthespectrumsensingtime.SimulationresultsshowthattherequiredobservationtimeoftheproposedmethodisdecreasedconsiderablyasopposedtoconventionalspectrumsensingschemesKeywords:CognitiveRadioSpectrumSensingN

2、oiseEstimationCooperationEnergydetection目录第一章绪论.................................................................................................................11.1研究背景及意义............................................................................................11.2

3、认知无线电技术概述...................................................................................11.2.1认知无线电概念................................................................................11.2.2认知无线电技术国内外研究现状..................................................21.2.3代表性研究成

4、果................................................................................31.3认知无线电网络的关键问题.......................................................................41.3.1频谱感知技术....................................................................................41.

5、3.2物理层传输技术................................................................................51.3.3无线资源管理....................................................................................61.3.4网络安全.......................................................................

6、.....................61.4认知无线电在无线通信中的应用..............................................................71.4.1认知无线电在无线区域网络中的应用..........................................71.4.2优化无线资源....................................................................................81.4.3

7、认知无线电在超宽带系统中的应用..............................................91.4.4提供智能服务....................................................................................91.5论文主要工作和结构安排.........................................................................10第二章频谱感知技术的研究........

8、........................................................................112.1引言....................................................