123,123,123

內(nèi)容簡(jiǎn)介

　　在萬(wàn)物互聯(lián)時(shí)代，頻譜資源會(huì)越來(lái)越緊張。將蜂窩通信擴(kuò)展到免授權(quán)頻段是緩解當(dāng)前頻譜資源短缺問(wèn)題的一個(gè)重要手段。本書(shū)系統(tǒng)地闡述免授權(quán)頻譜共享原理與技術(shù)，共7 章。第1 章為緒論，介紹免授權(quán)頻譜共享的提出及免授權(quán)頻譜共享方案等。第2 章介紹免授權(quán)頻譜共享方案LTE-LAA 在理想情況、捕獲效應(yīng)及不完美頻譜探測(cè)下的性能。第3 章介紹LTE-LAA 方案的智能優(yōu)化，分別介紹基于混沌Q 學(xué)習(xí)的CWS 選擇算法及基于Q 學(xué)習(xí)的能量閾值優(yōu)化算法。第4 章介紹D2D 通信下的免授權(quán)頻譜共享方法，分別介紹基于多智能體深度強(qiáng)化學(xué)習(xí)的D2D通信資源聯(lián)合分配算法和基于DDQN 的D2D 直接接入免授權(quán)頻譜算法。第5 章介紹基于無(wú)人機(jī)平臺(tái)的免授權(quán)頻譜共享方法，分別介紹基于混合頻譜共享的軌跡優(yōu)化和資源分配算法，以及基于全頻譜共享的軌跡和功率優(yōu)化算法。第6 章介紹基于AI 的免授權(quán)頻譜共享方法，分別介紹人工智能技術(shù)、基于深度Q 學(xué)習(xí)的免授權(quán)頻譜接入算法及基于平均場(chǎng)近似的免授權(quán)頻譜接入算法。第7 章是總結(jié)與展望。

作者簡(jiǎn)介

　　裴二榮，男，工學(xué)博士，重慶郵電大學(xué)通信與信息工程學(xué)院教授，碩導(dǎo)/博導(dǎo)，2012年畢業(yè)于電子科技大學(xué)，重慶大學(xué)博士后流動(dòng)站出站，英國(guó)謝菲爾德大學(xué)訪(fǎng)問(wèn)學(xué)者，重慶郵電大學(xué)智能互聯(lián)與先進(jìn)仿真創(chuàng)新團(tuán)隊(duì)負(fù)責(zé)人，中國(guó)電子學(xué)會(huì)高級(jí)會(huì)員，中國(guó)通信學(xué)會(huì)高級(jí)會(huì)員，中國(guó)通信學(xué)會(huì)第四、五屆通信軟件技術(shù)專(zhuān)業(yè)委員會(huì)委員，國(guó)家超高清視頻創(chuàng)新中心外聘專(zhuān)家，長(zhǎng)期從事無(wú)線(xiàn)移動(dòng)通信技術(shù)相關(guān)研究工作，先后承擔(dān)國(guó)家自然科學(xué)基金、國(guó)家863、新一代移動(dòng)通信網(wǎng)國(guó)家重大專(zhuān)項(xiàng)、省部級(jí)重大重點(diǎn)等多項(xiàng)項(xiàng)目，發(fā)表高質(zhì)量論文近50篇，申請(qǐng)并授權(quán)國(guó)家發(fā)明專(zhuān)利近50個(gè)，獲省部級(jí)獎(jiǎng)勵(lì)1項(xiàng)。

圖書(shū)目錄

第1 章緒論····································································································1
1.1 無(wú)線(xiàn)電頻譜························································································1
1.2 靜態(tài)的頻譜管理··················································································2
1.3 免授權(quán)頻譜共享的提出·······································································3
1.4 免授權(quán)頻段現(xiàn)有用戶(hù)WiFi 系統(tǒng)···························································5
1.5 免授權(quán)頻譜共享方案···········································································6
1.5.1 LWA···························································································8
1.5.2 LWIP ··························································································8
1.5.3 MulteFire······················································································8
1.5.4 LTE-U·························································································9
1.5.5 LTE-LAA··················································································.10
1.5.6 LTE-eLAA·················································································.12
1.5.7 5G NR-U···················································································.13
參考文獻(xiàn)·································································································.14
第2 章 LTE-LAA 方案的相關(guān)性能分析························································.16
2.1 引言································································································.16
2.2 LTE-LAA 方案的性能分析·······························································.17
2.2.1 系統(tǒng)模型···················································································.17
2.2.2 LTE-LAA 方案···········································································.18
2.2.3 數(shù)學(xué)建?！ぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁ?20
2.2.4 退避機(jī)制···················································································.24
2.2.5 目標(biāo)參數(shù)分析·············································································.26
2.2.6 仿真結(jié)果與性能分析····································································.28
2.2.7 本節(jié)小結(jié)···················································································.36
2.3 捕獲效應(yīng)下的LTE-LAA 性能分析···················································.37
2.3.1 系統(tǒng)模型···················································································.37
2.3.2 LTE-LAA 方案和WiFi DCF 機(jī)制····················································.39
2.3.3 捕獲模型···················································································.40
2.3.4 數(shù)學(xué)建模···················································································.43
2.3.5 仿真結(jié)果與性能分析····································································.49
2.3.6 本節(jié)小結(jié)···················································································.58
2.4 不完美頻譜探測(cè)下的LTE-LAA 性能分析·········································.58
2.4.1 網(wǎng)絡(luò)模型···················································································.59
2.4.2 WiFi DCF 機(jī)制和LBT 機(jī)制···························································.59
2.4.3 不完美頻譜探測(cè)下的LTE-LAA 共存性能研究···································.60
2.4.4 仿真結(jié)果與性能分析····································································.69
2.4.5 本節(jié)小結(jié)···················································································.79
2.5 本章總結(jié)·························································································.79
參考文獻(xiàn)·································································································.80
第3 章 LTE-LAA 方案的智能優(yōu)化·······························································.82
3.1 引言································································································.82
3.2 Q 學(xué)習(xí)算法······················································································.83
3.2.1 Q 學(xué)習(xí)算法理論··········································································.83
3.2.2 智能體動(dòng)作選擇策略····································································.84
3.3 基于混沌Q 學(xué)習(xí)的CWS 選擇算法······················