基于空时分组码的多天线超宽带OFDM系统性能研究

Performance Analysis of MIMO OFDM UWB System Based on STBC

在对多带(MB)OFDM UWB通信系统进行研究分析的基础上,提出一种基于空时分组码(STBC)的多输入多输出(MIMO)MB-OFDM超宽带通信系统,并详细介绍了系统模型和空时分组码的编译码原理,对系统性能进行了仿真。仿真结果表明,在改进的S-V多径信道环境下,和传统空时分组码相结合的MB-OFDM系统不仅具有更高的信道容量和分集增益,而且误码性能有所提高。

A new MIMO - MB - OFDM communication system based on STBC is put forward according to the study of multi - band OFDM system. In this paper, we discuss the system model and the coded and decoded principles of STBC and finally simulated the system performance. Simulation results indicated under the revision S -V channel model, the system has increased the channel capacity and obtained the better diversity gain and more BER performance.