【正文】 河北聯(lián)合大學(xué)輕工學(xué)院QINGGONG COLLEGE, HEBEI UNITED UNIVERSITY畢 業(yè) 設(shè) 計(jì) 說 明 書111論文題目：小型認(rèn)知無線網(wǎng)絡(luò)通信協(xié)議的制定與設(shè)計(jì) 2022 年 05 月 30 日摘 要認(rèn)知無線電網(wǎng)絡(luò)具有動(dòng)態(tài)、靈活、智能地使用頻譜資源，提高頻譜利用率的特點(diǎn)，其網(wǎng)絡(luò)結(jié)構(gòu)和協(xié)議體系的設(shè)計(jì)是實(shí)現(xiàn)上述網(wǎng)絡(luò)功能的關(guān)鍵?，F(xiàn)有基于認(rèn)知無線電技術(shù)的網(wǎng)絡(luò)架構(gòu)主要有美國(guó)的 CORVUS 系統(tǒng)，基于 IEEE 的無線局域網(wǎng)(WRAN)和支持多信道多接口的無線 Mesh 網(wǎng)絡(luò)；協(xié)議體系有CORVUS 協(xié)議體系，軍用的 XG 系統(tǒng)協(xié)議及 WRAN 協(xié)議等。提出了一種小型認(rèn)知無線網(wǎng)絡(luò)的頻譜協(xié)同感知方法，并在此基礎(chǔ)上設(shè)計(jì)了一種小型認(rèn)知無線網(wǎng)絡(luò)的通信協(xié)議。通過協(xié)議程序復(fù)雜度的角度切入，對(duì)該協(xié)議進(jìn)行了分析。同其他典型協(xié)議相比較， 該協(xié)議通過采用集中式控制、分布式感知、點(diǎn)對(duì)點(diǎn)通信的機(jī)制，盡可能地做到了揚(yáng)長(zhǎng)避短，使系統(tǒng)的整體穩(wěn)定性和復(fù)雜度得到了兼顧。關(guān)鍵詞 認(rèn)知無線電；網(wǎng)絡(luò)架構(gòu)；網(wǎng)絡(luò)協(xié)議；認(rèn)知無線網(wǎng)絡(luò)；協(xié)同感知；通信協(xié)議；程序復(fù)雜度I / 39 AbstractCognitive radio works have the abilities of utilizing spectrum dynamically， agilely and intelligently， and improving the efficiency of spectrum usage. Consequently， both the protocol and architectural designs for cognitive radio works is very crucial. The work architectures in existing systems included contents are CORVUS system introduced in America， Wireless Regional Area Network (WRAN) based on IEEE as well as the wireless Mesh work supporting multichannel and multiinterface； related work protocols are of CORVUS system， the XG system for military applications， and WRAN.A cooperative spectrum sensing method of small scale cognitive wireless work is proposed. On this basis， a munication protocol of small scale cognitive wireless work is designed. Starting from the program plexity， this paper analyzes and evaluates the munication protocol. Compared with other typical protocols， the performance of this protocol is improved by using the mechanism of centralized control， distributed sensing and point to point munication. The stability and plexity of the system are taken into account.Keywords： cognitive radio； work architecture； work protocol；cognitive wireless work； collaborative awareness； munication protocol； program plexity 目 錄摘 要 .............................................................................................................................IAbstract..........................................................................................................................II第 1 章 緒論 ..................................................................................................................1 認(rèn)知無線電的產(chǎn)生背景和特征 ..........................................................................1 CR 技術(shù)的產(chǎn)生 ...........................................................................................2 CR 特征 .........................................................................................................2 認(rèn)知無線電與軟件無線電之間的關(guān)系 .......................................................3 CR 當(dāng)前的發(fā)展與標(biāo)準(zhǔn) ..................................................................................3 認(rèn)知無線網(wǎng)絡(luò)的研究背景 ...................................................................................4第 2 章 認(rèn)知無線網(wǎng)絡(luò)的簡(jiǎn)介 ......................................................................................5 認(rèn)知無線網(wǎng)絡(luò)的概念 ..........................................................................................5 認(rèn)知無線網(wǎng)絡(luò)的特點(diǎn) ..........................................................................................5 認(rèn)知階段 .......................................................................................................6 學(xué)習(xí)階段 .......................................................................................................6 決策和調(diào)整階段 ...........................................................................................6第 3 章 認(rèn)知無線網(wǎng)絡(luò)的體系結(jié)構(gòu) ............................................................................8 目前提出的具有代表性的認(rèn)知無線網(wǎng)絡(luò)(CRN) 體系結(jié)構(gòu) ...............................8 網(wǎng)絡(luò)架構(gòu) ...............................................................................................................8 CORVUS 系統(tǒng) ...............................................................................................9 無線區(qū)域網(wǎng) ...................................................................................................9 支持多信道多接口的無線 Mesh 網(wǎng)絡(luò) ........................................................9 協(xié)議體系 ............................................................................................................10 CORVUS 的協(xié)議體系 .................................................................................10 XG 項(xiàng)目的協(xié)議體系 ...................................................................................11 WRAN 的協(xié)議體系 .....................................................................................13 CRN 網(wǎng)絡(luò)動(dòng)態(tài)接入 ............................................................................................15 CRN 中 PHY 層中的關(guān)鍵技術(shù) ...................................................................16 CRN 中 MAC 層中的關(guān)鍵技術(shù) ..................................................................17第 4 章 小型認(rèn)知無線網(wǎng)絡(luò)的關(guān)鍵技術(shù) ....................................................................18 引言 .....................................................................................................................18 認(rèn)知無線網(wǎng)絡(luò)的頻譜感知 .................................................................................18 頻譜感知的功能和特點(diǎn) ..............................................................................18 常用頻譜感知方法 ......................................................................................19 認(rèn)知無線網(wǎng)絡(luò)的頻譜分配 .................................................................................20 基于網(wǎng)絡(luò)結(jié)構(gòu)的頻譜分配 ..........................................................................20III / 39 基于合作方式的頻譜分配 ..........................................................................21 基于接入方式的分類 ..................................................................................21 短距離無線網(wǎng)絡(luò)的特點(diǎn)和實(shí)例 ........................................................................22 短距離無線網(wǎng)絡(luò)的特點(diǎn) ..............................................................................22 典型的短距離通信網(wǎng)絡(luò) ..............................................................................22 小型認(rèn)知無線網(wǎng)絡(luò)的特點(diǎn)和研究重點(diǎn) .....................................................