馬嘯

摘 要：隨著科技的不斷進步，需要通信的場合越來越復(fù)雜多變，在新的網(wǎng)絡(luò)通信環(huán)境下，亟需建立一套完善的涵蓋高速移動、復(fù)雜干擾等場景的寬帶無線通信網(wǎng)絡(luò)重點理論基礎(chǔ)體系，用以指導(dǎo)各類無線通信網(wǎng)絡(luò)的設(shè)計與建設(shè)，實現(xiàn)各種資源的有效配置和利用，提高信息傳輸效能。該研究旨在解決關(guān)鍵科學問題：無線通信網(wǎng)絡(luò)資源制約系統(tǒng)性能的規(guī)律。從網(wǎng)絡(luò)基本構(gòu)成單元信息容量域的分析與計算出發(fā)，基于網(wǎng)絡(luò)信息容量的認知，建立網(wǎng)絡(luò)信息容量的數(shù)學模型，研究規(guī)?；療o線網(wǎng)絡(luò)的動態(tài)性能限，并量化無線網(wǎng)絡(luò)資源、用戶行為和移動性等通信場景對系統(tǒng)性能的制約，從而獲得高速移動與復(fù)雜干擾等場景下的無線寬帶通信網(wǎng)絡(luò)設(shè)計的理論指導(dǎo)和優(yōu)化目標。針對處于不同場景、承載不同業(yè)務(wù)、具有不同網(wǎng)絡(luò)結(jié)構(gòu)和不同用戶行為模式的異構(gòu)的無線通信網(wǎng)絡(luò)，筆者研究的內(nèi)容主要涉及：信道不匹配場景下的性能限，反饋在高速移動環(huán)境下能否提高容量；協(xié)作通信系統(tǒng)的容量限如何確定；有限反饋機制、不同的協(xié)作通信協(xié)議以及多樣化干擾形態(tài)等因素如何影響無線通信網(wǎng)絡(luò)的信息容量；如何將用戶高移動性納入信息容量限等。通過研究，將發(fā)展與完善廣播、多址、中繼、干擾、反饋等網(wǎng)絡(luò)基本構(gòu)成單元信息容量域的分析，形成較為完整的高速移動等復(fù)雜場景下通信極限分析的理論框架。

關(guān)鍵詞：高速移動通信 無線通信 多用戶協(xié)作通信 快變干擾信道

Abstract：As the science and technology constantly advances， the circumstances that demand for communication are getting increasingly complicated. In the new network communication environment， it is urgent to establish a thorough theoretical foundation system on the broadband wireless communication network which covers scenarios like high-speed mobility， complex interference and etc. thereby providing directions on the design and construction of different kinds of wireless communication network in order to achieve efficient allocation and utilization of various resources and improve the efficiency of information transmission. This subject is intended to solve the critical scientific issue： the rule of how wireless communication network resources restrict the system performance. In order to acquire theoretical instructions and optimization goals on designing broadband wireless communication network in scenarios like high-speed mobility and complex interference， we start with analyzing and calculating the information capacity field of the network basic unit， establish the corresponding mathematical model based on the knowledge of network information capacity， and then study the dynamic performance limit of large-scale wireless communication as well as quantifying the restriction on the system performance by resources， user behaviors and scenarios like high-speed mobility respectively. According to the heterogeneous wireless communication network in different scenarios， carrying different bearer service， or having different network structure and user behavior patterns， the content of our research is mainly related to： the calculation of performance limit in mismatching channelswhether feedback is capable of improving capacity in high-speed mobile scenariohow to define the capacity limit of cooperative communicationhow limited feedback mechanisms， different cooperative communication protocols as well as diversified forms of interference and other factors affect the information capacity of a wireless communication networkhow to introduce the factor of high-speed mobility into the information capacity limits， etc. The study of this research is supposed to develop and complete the information capacity field analysis of the network basic unit like broadcast， multicast， relay， interference， feedback， etc.， and thus form a more complete theoretical framework of analyzing communication limit under complex scenarios like high-speed mobility.

Key words：High Speed Communications；Wireless Communications；Multiple-User Cooperative Communications； Fast Time-varying Interference Channels

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