SFBC-OFDM系统在快衰落信道下的性能分析  

Performance analysis of SFBC-OFDM system in fast fading channels

作　　者：叶霞[1] 林云[1] 

机构地区：[1]重庆邮电学院,重庆400065

出　　处：《信息技术》2006年第11期44-47,共4页Information Technology

摘　　要：在STBC-OFDM系统的基础上介绍了SFBC-OFDM系统的原理、编译码方案,并通过仿真做出了SFBC-OFDM系统在快衰落信道下的性能,同时与STBC-OFDM系统的性能进行比较。结果表明:SFBC-OFDM系统在室内环境即时间延迟缓慢的情况下性能与STBC-OFDM基本上达到一致,在室外环境快衰落情况下性能要比STBC-OFDM系统要好。The principle of STBC - OFDM system and scheme of coded and decoded are introduced based on the STBC - OFDM system in this paper. By the simulation, the performance of the SFBC - OFDM systems in fast fading channels is obtained. Compared with the performance of STBC - OFDM system, the result indicates that the performances of SFBC - OFDM system in indoor environment： time delays are slow, are consistent basically with the performances of STBC - OFDM, but in outdoor environment, the performance of fast fading is better than that of STBC - OFDM system.

关 键 词：快衰落信道 SFBC STBC OFDM 

分 类 号：TN911.22[电子电信—通信与信息系统]