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1、requiretoreportperceptualresultsinaspecifictime,thusgreatlyreducingthespectrumsensingtime.SimulationresultsshowthattherequiredobservationtimeoftheproposedmethodisdecreasedconsiderablyasopposedtoconventionalspectrumsensingschemesKeywords:CognitiveRadioSpectrumSensingN
2、oiseEstimationCooperationEnergydetection目錄第一章緒論.................................................................................................................11.1研究背景及意義............................................................................................11.2
3、認(rèn)知無線電技術(shù)概述...................................................................................11.2.1認(rèn)知無線電概念................................................................................11.2.2認(rèn)知無線電技術(shù)國內(nèi)外研究現(xiàn)狀..................................................21.2.3代表性研究成
4、果................................................................................31.3認(rèn)知無線電網(wǎng)絡(luò)的關(guān)鍵問題.......................................................................41.3.1頻譜感知技術(shù)....................................................................................41.
5、3.2物理層傳輸技術(shù)................................................................................51.3.3無線資源管理....................................................................................61.3.4網(wǎng)絡(luò)安全.......................................................................
6、.....................61.4認(rèn)知無線電在無線通信中的應(yīng)用..............................................................71.4.1認(rèn)知無線電在無線區(qū)域網(wǎng)絡(luò)中的應(yīng)用..........................................71.4.2優(yōu)化無線資源....................................................................................81.4.3
7、認(rèn)知無線電在超寬帶系統(tǒng)中的應(yīng)用..............................................91.4.4提供智能服務(wù)....................................................................................91.5論文主要工作和結(jié)構(gòu)安排.........................................................................10第二章頻譜感知技術(shù)的研究........
8、........................................................................112.1引言....................................................
