發(fā)布時(shí)間：2018-10-30 10:36

【摘要】：信息及通信技術(shù)(Information and Communication Technologies,ICT)領(lǐng)域的節(jié)能問(wèn)題已成為當(dāng)前業(yè)界和學(xué)術(shù)界研究的熱點(diǎn)問(wèn)題。作為信息與通信技術(shù)領(lǐng)域能量消耗主要來(lái)源之一,無(wú)線局域網(wǎng)(Wireless Local Area Networks,WLAN)的節(jié)能問(wèn)題更加引人關(guān)注。現(xiàn)如今,隨著智能手機(jī)、平板設(shè)備等無(wú)線設(shè)備的普及,無(wú)線數(shù)據(jù)業(yè)務(wù)量飆升,WLAN接入點(diǎn)(Access Point,AP)數(shù)目急速增長(zhǎng),在為終端用戶提供便捷的網(wǎng)絡(luò)接入服務(wù)的同時(shí),帶來(lái)大量的電力能源消耗。IEEE 802.11n協(xié)議由于實(shí)現(xiàn)物理層和MAC層的改進(jìn)優(yōu)化,極大地提高的了用戶的傳輸速率,成為WLAN的主流協(xié)議方案,配備于大量的WLAN設(shè)備上。對(duì)于WLAN節(jié)能技術(shù)的研究,特別對(duì)基于IEEE 802.11n協(xié)議無(wú)線局域網(wǎng)AP設(shè)備的節(jié)能技術(shù)研究,能夠?yàn)榫W(wǎng)絡(luò)運(yùn)營(yíng)商帶來(lái)實(shí)際的成本降低,對(duì)于ICT領(lǐng)域以及全球的節(jié)能進(jìn)程都有著積極的作用,具有很高的研究?jī)r(jià)值和研究意義。本文旨在研究基于IEEE 802.11n協(xié)議的節(jié)能機(jī)制,從運(yùn)營(yíng)商的角度出發(fā),節(jié)能目標(biāo)為廣泛部署的WLAN中的AP節(jié)點(diǎn)。通過(guò)研究使AP節(jié)點(diǎn)能耗降低,能效提升的機(jī)制,降低整個(gè)WLAN及無(wú)線接入網(wǎng)的能耗,提升其能量效率。本文首先通過(guò)對(duì)WLAN設(shè)備能耗模型的建模和分析,提出了評(píng)估設(shè)備能耗的標(biāo)準(zhǔn),分別用平均能耗和單位能耗表征設(shè)備的能耗和能效性能。從理論上詳細(xì)分析了設(shè)備能耗的計(jì)算方法,給出基于IEEE 802.11n協(xié)議的WLAN設(shè)備能耗計(jì)算理論模型。其次針對(duì)WLAN無(wú)線接入點(diǎn)提出了適用于IEEE 802.11n協(xié)議的自適應(yīng)傳輸功率控制機(jī)制(Adaptive Transmission Power Control Mechanism,A-TPCM)。A-TPCM的主旨是通過(guò)信道估計(jì)調(diào)整WLAN設(shè)備的傳輸功率,使WLAN設(shè)備能夠在傳輸狀態(tài)時(shí)使用較低的傳輸功率,同時(shí)實(shí)現(xiàn)在不同信道條件下自適應(yīng)的調(diào)整傳輸功率。A-TPCM針對(duì)IEEE 802.11n協(xié)議,引入子幀錯(cuò)誤概率的概念,采用對(duì)Block ACK統(tǒng)計(jì)處理的方式進(jìn)行信道估計(jì),不需要修改現(xiàn)有協(xié)議,可以方便的應(yīng)用于WLAN設(shè)備。A-TPCM的優(yōu)勢(shì)還在于其既支持802.11n的AP設(shè)備的節(jié)能,對(duì)用戶側(cè)設(shè)備也同樣適用,并且向后兼容于IEEE 802.11a/b/g設(shè)備。最后,本文利用OPNET軟件設(shè)計(jì)和實(shí)現(xiàn)了WLAN設(shè)備的仿真模型,對(duì)A-TPCM的性能進(jìn)行了驗(yàn)證。結(jié)果表明,在不同的仿真場(chǎng)景中,A-TPCM都有效的降低了WLAN設(shè)備的能量消耗,提升了其能量效率。
[Abstract]:Energy saving in the field of information and communication technology (Information and Communication Technologies,ICT) has become a hot issue in industry and academia. As one of the main sources of energy consumption in the field of information and communication technology (Wireless Local Area Networks,WLAN), the energy saving problem of WLAN (WLAN) becomes more and more attractive. Nowadays, with the popularity of wireless devices such as smart phones and tablet devices, the volume of wireless data services has soared, and the number of WLAN access points (Access Point,AP) has increased rapidly, providing convenient network access services for end users at the same time. IEEE 802.11n protocol, which realizes the improvement and optimization of physical layer and MAC layer, greatly improves the transmission rate of users and becomes the mainstream protocol scheme of WLAN, which is equipped with a large number of WLAN devices. For the research of WLAN energy-saving technology, especially for the research of IEEE 802.11n wireless LAN AP equipment, it can bring the actual cost reduction for network operators. It plays an active role in the field of ICT and the global energy saving process, and has high research value and significance. The purpose of this paper is to study the energy-saving mechanism based on IEEE 802.11n protocol. From the point of view of the operator, the energy saving target is the AP node in the widely deployed WLAN. By studying the mechanism of reducing energy consumption and improving energy efficiency of AP nodes, the energy consumption of the whole WLAN and wireless access network is reduced, and its energy efficiency is improved. Based on the modeling and analysis of the energy consumption model of WLAN equipment, this paper puts forward a standard to evaluate the energy consumption of the equipment. The average energy consumption and the unit energy consumption are used to characterize the energy consumption and energy efficiency performance of the equipment, respectively. The calculation method of equipment energy consumption is analyzed in detail theoretically, and the theoretical model of WLAN device energy consumption calculation based on IEEE 802.11n protocol is presented. Secondly, an adaptive transmission power control mechanism (Adaptive Transmission Power Control Mechanism,A-TPCM) for WLAN wireless access points is proposed for IEEE 802.11n protocol. The main purpose of A-TPCM is to adjust the transmission power of WLAN devices through channel estimation. The WLAN device can use lower transmission power in transmission state, and realize adaptive adjustment of transmission power under different channel conditions. A-TPCM introduces the concept of sub-frame error probability for IEEE 802.11n protocol. The channel estimation based on Block ACK statistical processing can be easily applied to WLAN devices without modifying the existing protocols. The advantage of A-TPCM is that it not only supports the energy saving of 802.11n AP devices, but also applies to user side devices. And backward compatible with IEEE 802.11a/b/g devices. Finally, the simulation model of WLAN equipment is designed and implemented by using OPNET software, and the performance of A-TPCM is verified. The results show that in different simulation scenarios, A-TPCM can effectively reduce the energy consumption of WLAN equipment and improve its energy efficiency.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN925.93

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 徐磊;方紅雨;李曉輝;;基于OPNET的無(wú)線信道接入?yún)f(xié)議仿真[J];安徽教育學(xué)院學(xué)報(bào);2007年06期

2 王曉峰;孫繼銀;李琳琳;高晶;曹志強(qiáng);;基于OPNET的網(wǎng)絡(luò)仿真應(yīng)用技術(shù)[J];兵工自動(dòng)化;2009年04期

3 王遠(yuǎn);陳遠(yuǎn)知;楊仕勇;;一種新型的高能效無(wú)線傳感器網(wǎng)絡(luò)路由協(xié)議[J];中國(guó)傳媒大學(xué)學(xué)報(bào)(自然科學(xué)版);2008年02期

4 付穎芳;何涇沙;欒良玉;王戎;李國(guó)瑞;;無(wú)線Mesh網(wǎng)的密鑰分配與仿真分析[J];北京工業(yè)大學(xué)學(xué)報(bào);2009年03期

5 劉強(qiáng);匡鏡明;王華;畢志明;;基于TORA的移動(dòng)Ad hoc網(wǎng)絡(luò)多徑路由協(xié)議M-TORA[J];北京理工大學(xué)學(xué)報(bào);2006年05期

6 王秦;支芬和;;移動(dòng)商務(wù)身份認(rèn)證協(xié)議的設(shè)計(jì)與實(shí)現(xiàn)[J];北京聯(lián)合大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年04期

7 史鴻雁;李海生;;基于OPNET的集群負(fù)載均衡仿真[J];北京工商大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年01期

8 張宇;馮春燕;郭彩麗;曾志民;;認(rèn)知無(wú)線電網(wǎng)絡(luò)頻譜檢測(cè)研究[J];吉林大學(xué)學(xué)報(bào)(信息科學(xué)版);2008年02期

9 曲仁慧;邸朝生;邸鑫;;Ad Hoc網(wǎng)絡(luò)中分布式自適應(yīng)緩存器更新算法[J];吉林大學(xué)學(xué)報(bào)(信息科學(xué)版);2008年03期

10 范亞芹;王琳珠;孫慧穎;;基于OPNET的Ad Hoc網(wǎng)絡(luò)AODV路由協(xié)議仿真[J];吉林大學(xué)學(xué)報(bào)(信息科學(xué)版);2009年05期

相關(guān)碩士學(xué)位論文 前10條

1 葉青;基于可信的無(wú)線傳感器網(wǎng)絡(luò)認(rèn)證技術(shù)的研究[D];安徽工程大學(xué);2010年

2 張朝霞;基于AODV路由算法改進(jìn)研究[D];湘潭大學(xué);2010年

3 董鵬飛;路由算法及過(guò)濾器部署算法的研究與分析[D];鄭州大學(xué);2010年

4 邵永剛;基于主動(dòng)隊(duì)列管理的網(wǎng)絡(luò)擁塞控制算法研究[D];鄭州大學(xué);2010年

5 馬興國(guó);無(wú)線傳感器網(wǎng)絡(luò)安全路由協(xié)議研究與仿真[D];哈爾濱工程大學(xué);2010年

6 孫長(zhǎng)宇;無(wú)線Ad Hoc網(wǎng)絡(luò)路由協(xié)議的性能分析與改進(jìn)研究[D];哈爾濱工程大學(xué);2010年

7 萬(wàn)政偉;基于IMS架構(gòu)的QoS保證機(jī)制研究[D];遼寧工程技術(shù)大學(xué);2009年

8 盧永;基于認(rèn)知無(wú)線電的動(dòng)態(tài)頻譜分配算法研究[D];遼寧工程技術(shù)大學(xué);2010年

9 唐張杰;無(wú)線個(gè)人區(qū)域網(wǎng)的調(diào)度算法研究[D];湘潭大學(xué);2010年

10 郭苗苗;IPv4/IPv6協(xié)議過(guò)渡方案的研究[D];中國(guó)海洋大學(xué);2010年

，

本文編號(hào)：2299763