【摘要】：短波通信具有抗毀能力強(qiáng)、設(shè)備簡單、通信距離遠(yuǎn)、應(yīng)用靈活、運(yùn)行成本低等特點(diǎn)，在應(yīng)急通信中運(yùn)用短波通信有著很高的促進(jìn)作用。但短波信道易受衰落、多徑和節(jié)點(diǎn)移動(dòng)的影響，導(dǎo)致短波通信環(huán)境較差，嚴(yán)重的影響了系統(tǒng)性能。協(xié)作通信作為現(xiàn)代無線通信領(lǐng)域中重要的通信技術(shù)之一，通過單天線終端相互協(xié)作，共享彼此天線，形成虛擬多天線發(fā)射陣列，以此構(gòu)成協(xié)作MIMO系統(tǒng)；同時(shí)將傳統(tǒng)MIMO中的空時(shí)編碼理論應(yīng)用其中，不僅能夠有效獲得空間分集增益和編碼增益，抵抗多徑衰落并提高應(yīng)急通信網(wǎng)性能，而且最主要的是為協(xié)作通信技術(shù)邁向?qū)嵱锰峁┝艘环N新實(shí)現(xiàn)辦法。 本文主要對短波應(yīng)急通信網(wǎng)中協(xié)作通信技術(shù)的應(yīng)用進(jìn)行了研究論證。首先對常用的應(yīng)急通信手段進(jìn)行了優(yōu)劣性分析，進(jìn)而對短波應(yīng)急通信網(wǎng)的設(shè)計(jì)進(jìn)行了闡述和分析，然后構(gòu)建了基于短波通信的應(yīng)急通信網(wǎng)模型及其拓?fù)浣Y(jié)構(gòu)，并闡述分析了短波應(yīng)急通信網(wǎng)的主要性能指標(biāo)。 其次，介紹了協(xié)作通信的相關(guān)技術(shù)原理，重點(diǎn)介紹了協(xié)作分集技術(shù)和基于空時(shí)編碼的協(xié)作通信技術(shù)，然后在此基礎(chǔ)上介紹分析了傳統(tǒng)MIMO技術(shù)及其應(yīng)用限制，進(jìn)而引出了協(xié)作MIMO系統(tǒng)和分布式Alamouti空時(shí)分組碼，并對其進(jìn)行深入的分析研究。 最后，重點(diǎn)探討了短波應(yīng)急通信網(wǎng)中協(xié)作通信技術(shù)實(shí)現(xiàn)的方案。通過構(gòu)建短波應(yīng)急通信網(wǎng)的協(xié)作模型，，對系統(tǒng)容量、誤碼性能、能量效率和網(wǎng)絡(luò)壽命分別進(jìn)行分析與仿真。實(shí)例分析說明，將協(xié)作通信應(yīng)用于短波應(yīng)急通信網(wǎng)中，可以有效提高短波應(yīng)急通信網(wǎng)性能。 在論文結(jié)尾，對本文進(jìn)行了總結(jié)并對今后協(xié)作通信在短波應(yīng)急通信網(wǎng)中的研究方向做了展望。
[Abstract]:The short-wave communication has the characteristics of strong anti-destruction capability, simple equipment, long communication distance, flexible application, low operation cost and the like, and has high catalytic effect in the application of short-wave communication in emergency communication. But the short-wave channel is susceptible to fading, multi-path and node mobility, resulting in poor short-wave communication environment and seriously affecting the performance of the system. The cooperative communication, as one of the important communication technologies in the field of modern wireless communication, forms a cooperative MIMO system by cooperating with each other through a single antenna terminal, forming a virtual multi-antenna transmission array, and simultaneously applying the space-time coding theory in the traditional MIMO, The method not only can effectively obtain the spatial diversity gain and the coding gain, resist the multi-path fading and improve the performance of the emergency communication network, but also the most important is to provide a new implementation method for the cooperative communication technology. In this paper, the application of cooperative communication technology in short-wave emergency communication network is studied. Based on the analysis of the advantages and disadvantages of the commonly used emergency communication means, the design of the short-wave emergency communication network is described and analyzed, then the emergency communication network model based on short-wave communication and its topological structure are constructed, and the main performance of the short-wave emergency communication network is analyzed and analyzed. Secondly, the relevant technical principle of cooperative communication is introduced, the cooperative diversity technology and the cooperative communication technology based on space-time coding are introduced, then the traditional MIMO technology and its application limitation are introduced, and then the cooperative MIMO system and the distributed Alamouti space-time are introduced. a block code and an in-depth division of the block code In the end, the cooperative communication technology in short-wave emergency communication network is discussed. According to the scheme, the system capacity, the error code performance, the energy efficiency and the network life are respectively carried out by building a cooperation model of the short-wave emergency communication network, Analysis and simulation. The example analysis shows that the cooperative communication is applied to the short-wave emergency communication network, and the short-wave emergency can be effectively improved. The performance of communication network. At the end of the thesis, this paper summarizes and studies the future cooperative communication in the short-wave emergency communication network.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN925

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