| 基于MIMO-OFDM技术的对流层散射通信系统研究 |
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| 引用本文： | 谢红,谭泽富.基于MIMO-OFDM技术的对流层散射通信系统研究[J].广西通信技术,2010(1):19-22,32. |
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| 作者姓名： | 谢红 谭泽富 |
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| 作者单位： | 1. 重庆邮电大学移动通信重点实验室,重庆,400065
2. 重庆邮电大学移动通信重点实验室,重庆,400065;重庆三峡学院物理与电子工程学院,重庆,404000 |
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| 摘 要： | 对流层散射通信是一种典型的随参信道，多径衰落十分突出，所以要实现高速大容量散射通信是非常困难的。为了抵抗由于多径衰落所带来的散射通信性能恶化，提出了基于MIMO-OFDM结构的的新一代对流层散射通信系统框架。通过分析散射信道中的MIMO-OFDM结构，讨论MIMO-OFDM技术应用的主要问题，发现运用该技术可以有效提高散射通信的可靠度，克服高速数据在散射信道下的多径衰落，实现散射的大容量、远距离通信。
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| 关 键 词： | MIMO-OFDM 散射通信 多径衰落 信道容量 |
Tropospheric Scatter Communication System Based on MIMO-OFDM Technology |
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| XIE Hong,TAN Ze-fu.Tropospheric Scatter Communication System Based on MIMO-OFDM Technology[J].Guangxi Communication Technology,2010(1):19-22,32. |
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| Authors: | XIE Hong TAN Ze-fu |
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| Affiliation: | 1. Key Lab of Mobile Communication Technology, Chongqing University of Post and Telecommunication Chongqing 400065, China; 2. Department of Electron Engineering Chongqing Three Gorges College, Chongqing 404000, China) |
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| Abstract: | Tropospheric scatter communication is a typical random parameters channel, multi-path fading is very prominent, so it is very difficult to realize high-speed large-capacity troposcatter communication. To overcome the performance degradation in scatter communication equipments caused by multipath, proposing MIMO-OFDM based on the structure of a new genera- tion of tropospheric scatter communications systems framework. By analyzing the MIMO-OFDM structure in scatter channel, and discussing the main issues about the application of MIMO-OFDM technology, found that using this technology can effectively enhance the reliability of scatter communication, overcome multi-path fading under the high-speed data channel in the scatter channel, and achieve high-capacity, long-distance communication. |
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| Keywords: | MIMO-OFDM |
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