摘要
在MIMO-OFDM系统中,分层空时编码技术可以有效地提高空间复用增益,但是由于其译码层是相互独立的,因此系统编码增益并不高,而基于迭代法译码的Turbo码具有良好的编码增益,因此,提出采用联合分层空时编码技术和Turbo迭代解码原理的MIMO-OFDM检测系统,通过仿真实验验证,该系统不仅可以提高MIMO-OFDM系统的性能,在频率选择性衰落信道下该系统也具有良好的可靠性。
In MIMO-OFDM system, BLAST technology can effectively improve the performance of spatial multiplexing gain, but the system coding gain is not high because of independently decoding data. Turbo code based on the iterative decoding has good coding gain. Therefore, the MIMO-OFDM detection system combining BLAST technology with turbo iterative decoding is proposed in this paper. The simulation results show that the system can not only improve the performance of MIMO-OFDM system, but also has high reliability in the frequency selective fading channel.
出处
《现代电子技术》
2013年第11期46-49,共4页
Modern Electronics Technique
