【摘要】：隨著LTE無(wú)線通信網(wǎng)絡(luò)在全球的部署和建設(shè),我們已然進(jìn)入了4G移動(dòng)通信時(shí)代。第四代移動(dòng)通信系統(tǒng)為用戶提供了更優(yōu)質(zhì)、更豐富的用戶業(yè)務(wù)體驗(yàn),例如：實(shí)時(shí)的移動(dòng)視頻業(yè)務(wù)、移動(dòng)端的在線游戲、高清晰視頻傳輸?shù)雀咚贁?shù)據(jù)業(yè)務(wù)。然而,近年來隨著移動(dòng)終端的數(shù)量(未來預(yù)計(jì)將達(dá)到千億量級(jí)水平)及移動(dòng)數(shù)據(jù)流量的急劇增加,也帶了很多4G難以解決的問題,例如：頻譜資源匱乏、能耗過高、不能支持高鐵等高速移動(dòng)體間的通信服務(wù)以及其他特殊場(chǎng)景的無(wú)線通信服務(wù)。因此,對(duì)于能夠獲得更高容量、頻效、能效的第五代移動(dòng)通信系統(tǒng)(5G)的需求越來越大。同時(shí),第五代移動(dòng)通信系統(tǒng)還能實(shí)現(xiàn)更高的傳輸速率、更高平均吞吐量和網(wǎng)絡(luò)容量、更小的時(shí)延、實(shí)現(xiàn)無(wú)縫覆蓋、適應(yīng)高速移動(dòng)體的通信,以及支持?jǐn)?shù)以千億計(jì)終端的通信業(yè)務(wù)等。早在2012年歐盟就已經(jīng)開始了5G相關(guān)的研究,中國(guó)也于2013年成立IMT-2020推進(jìn)組,展開5G方面的研究工作。從目前國(guó)內(nèi)、外移動(dòng)通信的眾多研究項(xiàng)目中,信道容量、頻譜效率和能量效率的大幅提升都作為5G的重要衡量指標(biāo)被提出來。提高信道容量和頻譜效率,最為主流的共識(shí)就是密集小蜂窩和尋找新的頻譜資源,即盡可能增加小區(qū)的數(shù)量、減少小區(qū)的尺寸,并開拓利用未曾開發(fā)的新頻譜資源。如此勢(shì)必要增加能量的消耗,這也是未來困擾運(yùn)營(yíng)商的一個(gè)難題。因此,如何能夠在提高容量和頻譜效率的情況下,減少能量的消耗、增加能量的利用率將是5G研究的一個(gè)熱點(diǎn)問題。本文專注研究第五代移動(dòng)通信系統(tǒng)的網(wǎng)絡(luò)架構(gòu)和關(guān)鍵技術(shù)。在采用室內(nèi)、室外場(chǎng)景分離的網(wǎng)絡(luò)架構(gòu)以及應(yīng)用可見光通信技術(shù)的情況下,探究移動(dòng)通信網(wǎng)絡(luò)的信道容量、頻譜效率和能量效率,以及頻譜效率和能量效率的折中等問題。本文首先介紹了國(guó)內(nèi)、外移動(dòng)通信系統(tǒng)的研究現(xiàn)狀,以及未來第五代移動(dòng)通信系統(tǒng)潛在的關(guān)鍵技術(shù)和網(wǎng)絡(luò)架構(gòu),研究Massive MIMO和可見光通信技術(shù)的發(fā)展、優(yōu)勢(shì)、原理和應(yīng)用；然后,著重研究了室內(nèi)、外場(chǎng)景分離的網(wǎng)絡(luò)架構(gòu)來減少建筑物的穿透損耗的優(yōu)勢(shì)和思想,并進(jìn)行場(chǎng)景建模和仿真實(shí)驗(yàn)。最后,對(duì)采用室、外場(chǎng)景分離架構(gòu)通信網(wǎng)絡(luò)的頻譜效率和能量效率,以及頻譜效率和能量效率的折中等問題進(jìn)行了詳細(xì)推導(dǎo)和仿真,并給出結(jié)論。
[Abstract]:With the deployment and construction of LTE wireless communication network in the world, we have entered the 4G mobile communication era. The fourth generation mobile communication system provides users with better and richer user experience, such as real-time mobile video services, mobile online games, high-definition video transmission and other high-speed data services. However, with the rapid increase in the number of mobile terminals (which are expected to reach a level of hundreds of billions in the future) and the rapid increase in mobile data traffic in recent years, there are many difficult problems with 4G, such as the scarcity of spectrum resources and the excessive consumption of energy. High-speed mobile communication services such as high-speed rail and other special-scenario wireless communication services cannot be supported. Therefore, there is a growing demand for the fifth generation mobile communication systems (5G) that can achieve higher capacity, frequency efficiency and energy efficiency. At the same time, the fifth generation mobile communication system can also achieve higher transmission rate, higher average throughput and network capacity, smaller delay, seamless coverage, suitable for high-speed mobile communications, And support hundreds of billions of terminal communications services and so on. The EU started 5G research as early as 2012, and China set up the IMT-2020 Propulsion Group in 2013 to carry out 5G research. At present, among many domestic and foreign mobile communication research projects, the significant improvement of channel capacity, spectrum efficiency and energy efficiency is proposed as an important measurement index of 5G. To improve channel capacity and spectral efficiency, the most popular consensus is to dense small cells and find new spectrum resources, that is, to increase the number of cells as much as possible, to reduce the size of cells, and to exploit new spectrum resources that have not been developed. This is bound to increase energy consumption, which is also a problem for future operators. Therefore, how to reduce the energy consumption and increase the energy efficiency while improving the capacity and spectral efficiency will be a hot issue in 5G research. This paper focuses on the network architecture and key technologies of the fifth generation mobile communication system. In the case of indoor and outdoor scene separation network architecture and visible light communication technology, this paper explores the channel capacity, spectrum efficiency and energy efficiency of mobile communication network, as well as the compromise between spectrum efficiency and energy efficiency. This paper first introduces the research status of mobile communication system in China and abroad, and the potential key technologies and network architecture of the fifth generation mobile communication system in the future, and studies the development, advantages, principles and applications of Massive MIMO and visible light communication technology. Then, the advantages and ideas of indoor and outer scene separation network architecture to reduce the penetration loss of buildings are studied, and the scene modeling and simulation experiments are carried out. Finally, the spectrum efficiency and energy efficiency of the communication network based on the separation of room and external scene, as well as the compromise between spectrum efficiency and energy efficiency, are deduced and simulated in detail, and the conclusions are given.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN929.5

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