短波應急通信網(wǎng)中協(xié)作通信技術(shù)的研究
發(fā)布時間：2019-06-18 14:05
【摘要】：短波通信具有抗毀能力強、設備簡單、通信距離遠、應用靈活、運行成本低等特點，在應急通信中運用短波通信有著很高的促進作用。但短波信道易受衰落、多徑和節(jié)點移動的影響，導致短波通信環(huán)境較差，嚴重的影響了系統(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)；同時將傳統(tǒng)MIMO中的空時編碼理論應用其中，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新實現(xiàn)辦法。 本文主要對短波應急通信網(wǎng)中協(xié)作通信技術(shù)的應用進行了研究論證。首先對常用的應急通信手段進行了優(yōu)劣性分析，進而對短波應急通信網(wǎng)的設計進行了闡述和分析，然后構(gòu)建了基于短波通信的應急通信網(wǎng)模型及其拓撲結(jié)構(gòu)，并闡述分析了短波應急通信網(wǎng)的主要性能指標。 其次，介紹了協(xié)作通信的相關技術(shù)原理，重點介紹了協(xié)作分集技術(shù)和基于空時編碼的協(xié)作通信技術(shù)，然后在此基礎上介紹分析了傳統(tǒng)MIMO技術(shù)及其應用限制，進而引出了協(xié)作MIMO系統(tǒng)和分布式Alamouti空時分組碼，并對其進行深入的分析研究。 最后，重點探討了短波應急通信網(wǎng)中協(xié)作通信技術(shù)實現(xiàn)的方案。通過構(gòu)建短波應急通信網(wǎng)的協(xié)作模型，，對系統(tǒng)容量、誤碼性能、能量效率和網(wǎng)絡壽命分別進行分析與仿真。實例分析說明，將協(xié)作通信應用于短波應急通信網(wǎng)中，可以有效提高短波應急通信網(wǎng)性能。 在論文結(jié)尾，對本文進行了總結(jié)并對今后協(xié)作通信在短波應急通信網(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.
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN925
本文編號：2501547
[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.
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN925
【參考文獻】
相關期刊論文 前5條
1 楊青彬;;基于短波的應急通信網(wǎng)安全體系研究[J];國防科技;2012年03期
2 鄧友軍;;應急通信中短波通信的優(yōu)劣性分析[J];信息通信;2013年08期
3 劉濤;劉乙樟;楊俊蓉;;應急現(xiàn)場通信組網(wǎng)方案探討[J];數(shù)字通信;2012年01期
4 曾玲;王小驥;;基于短波的應急通信系統(tǒng)設計[J];通信技術(shù);2012年12期
5 肖小潮;鄭寶玉;許曉榮;;協(xié)作MIMO中分布式空時編碼技術(shù)的研究[J];信號處理;2011年03期
本文編號：2501547
本文鏈接：http://sikaile.net/kejilunwen/wltx/2501547.html
最近更新
教材專著
