認(rèn)知無線電網(wǎng)絡(luò)中具有服務(wù)逋量保障的節(jié)能動(dòng)態(tài)接入策略（英文）

【摘要】：Dynamic spectrum access policy is crucial in improving the performance of overlay cognitive radio networks.Most of the previous works on spectrum sensing and dynamic spectrum access consider the sensing effectiveness and spectrum utilization as the design criteria,while ignoring the energy related issues and QoS constraints.In this article,we propose a QoS provisioning energy saving dynamic access policy using stochastic control theory considering the time-varying characteristics of wireless channels because of fading and mobility.The proposed scheme determines the sensing action and selects the optimal spectrum using the corresponding power setting in each decision epoch according to the channel state with the objective being to minimise both the frame error rate and energy consumption.We use the Hidden Markov Model(HMM) to model a wireless channel,since the channel state is not directly observable at the receiver,but is instead embedded in the received signal.The procedure of dynamic spectrum access is formulated as a Markov decision process which can be solved using linear programming and the primaldual index heuristic algorithm,and the obtained policy has an index-ability property that can be easily implemented in real systems.Simulation results are presented to show the performance improvement caused by the proposed approach. 【作者單位】： Beijing
【關(guān)鍵詞】： energy saving dynamic access cognitive radio hidden Markov model
【基金】：supported by the National Natural Science Foundation of China under Grant No.61101107 the Beijing Higher Education Young Elite Teacher Project under Grant No.YETP0439
【分類號(hào)】：TN925
【正文快照】： I.INTRODUCTION As the demand of wireless spectrum increases rapidly in recent years,cognitive radio has rec- eived significant attention from both industryand academia as an effective measure to res-olve the conflicts between limited spectrum ^resource a

您可以在本站搜索以下學(xué)術(shù)論文文獻(xiàn)來了解更多相關(guān)內(nèi)容

異構(gòu)認(rèn)知無線網(wǎng)絡(luò)融合若干關(guān)鍵技術(shù)研究    陳鋒

認(rèn)知無線網(wǎng)絡(luò)中基于模糊邏輯和Q學(xué)習(xí)的集中式動(dòng)態(tài)頻譜分配(英文)    張文柱;劉栩辰;

異構(gòu)認(rèn)知網(wǎng)絡(luò)自適應(yīng)頻譜決策方法(英文)    孫武劍;劉洋;李娜;李鷗;李彩萍;

Network selection policy in multi-radio access environment using stochastic control theory    

動(dòng)態(tài)頻譜管理的發(fā)展現(xiàn)狀及應(yīng)對(duì)策略分析    姚富強(qiáng);張建照;柳永祥;趙杭生;

基于雙門限能量檢測(cè)的自適應(yīng)協(xié)作頻譜感知    李哲;柏鵬;檀蕊蓮;姚戰(zhàn)宏;林晉福;盧虎;

認(rèn)知無線網(wǎng)絡(luò)中的頻譜切換性能分析    吳呈瑜;何晨;蔣鈴鴿;

認(rèn)知無線網(wǎng)絡(luò)安全頻譜感知技術(shù)研究進(jìn)展    王慧強(qiáng);王振東;

主用戶活躍性對(duì)新的認(rèn)知無線電系統(tǒng)容量的影響    付亞楠;楊守義;白文娟;

認(rèn)知無線電中頻譜分配技術(shù)研究    李文;鄧微;

認(rèn)知計(jì)算在網(wǎng)絡(luò)安全態(tài)勢(shì)感知中的應(yīng)用研究    肖曉飛;賈穎;

無線網(wǎng)絡(luò)中自適應(yīng)的資源預(yù)留切換算法研究    夏漢鑄;劉輝元;

基于雙特征值極限分布的合作頻譜感知算法    趙知?jiǎng)?胡偉康;王海泉;

電磁頻譜監(jiān)測(cè)設(shè)備部署優(yōu)化算法    葛云露;董俊;姬生云;馮曉哲;王健;王先義;

A Spectrum Pooling-based Algorithm in Spectrum Aggregation and Allocation    Feng Peilun;Zhang Jianzhao;Zhao Hangsheng;Liu Renfu;Li Dali;

Spectrum Sensing for Cognitive Network based on Principal Component Analysis and Random Forest    Xin WANG;Zhi-gang LIU;Jin-kuan WANG;Bin WANG;Xi HU;

基于貝葉斯博弈雙向拍賣的認(rèn)知無線電頻譜分配研究    崔宇;王志;史名霄;

干擾溫度約束下的一種新的中繼選擇策略    余杰;劉順蘭;

無線局域網(wǎng)無線資源管理及跨層設(shè)計(jì)研究    李志杰

移動(dòng)互聯(lián)網(wǎng)環(huán)境下高效流媒體分發(fā)關(guān)鍵技術(shù)研究    劉然

認(rèn)知無線電網(wǎng)絡(luò)中感知策略和頻譜共享技術(shù)研究    黃麗

下一代無線通信中高速Turbo譯碼和協(xié)作頻譜感知研究    任德鋒

無線Ad Hoc網(wǎng)絡(luò)接入和路由關(guān)鍵技術(shù)研究    蔡雪蓮

無線網(wǎng)絡(luò)的物理層安全問題研究    陳濤

認(rèn)知無線電頻譜感知及資源分配技術(shù)研究    劉允

無線頻譜環(huán)境認(rèn)知技術(shù)研究    呂守濤

認(rèn)知無線網(wǎng)絡(luò)資源管理若干關(guān)鍵技術(shù)研究    安春燕

無線協(xié)作通信系統(tǒng)中資源管理和優(yōu)化技術(shù)研究    張曉亮

湖北郵政應(yīng)用系統(tǒng)及網(wǎng)絡(luò)平臺(tái)規(guī)劃研究    鄧寶才

結(jié)合定位的新型頻譜檢測(cè)技術(shù)研究    孫晨

基于認(rèn)知無線網(wǎng)狀網(wǎng)的媒體接入控制技術(shù)研究    時(shí)浩

車載自組網(wǎng)認(rèn)知區(qū)分路由協(xié)議研究    張杰

無線通信系統(tǒng)中基于Markov模型的信道分配研究    王中偉

基于稀疏度檢測(cè)的寬帶壓縮頻譜感知方法研究    劉京川

認(rèn)知無線電中基于能量檢測(cè)的頻譜感知技術(shù)研究    胡畔

基于D-S證據(jù)理論的認(rèn)知無線電協(xié)作頻譜感知算法研究    梁芮

基于認(rèn)知無線電的協(xié)作頻譜感知研究    白文娟

基于感知信息量化的判決融合算法研究    陳亞琨

Joint Efforts to Combat Transnational Crime    

Q-learning based heterogenous network self-optimization for reconfigurable network with CPC assistance    

認(rèn)知無線網(wǎng)絡(luò)中的認(rèn)知流(英文)    許文俊;林家儒;馮志勇;徐文波;張平;

基于Q-Learning的認(rèn)知無線電系統(tǒng)感知管理算法    李默;徐友云;蔡躍明;

模糊層次分析法(FAHP)    張吉軍

IEEE1900.4框架下一種有效的終端重構(gòu)策略    張文柱;曾業(yè);孫曉艷;

A Novel System Model based on Cost-prediction for Spectrum Leasing in Cognitive Radio    

基于部分感知用戶協(xié)作的多天線頻譜檢測(cè)方案(英文)    王曉湘;王晶;王玉龍;馬博;