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。
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.
出处
《广西通信技术》
2010年第1期19-22,32,共5页
Guangxi Communication Technology
