摘要
在研究传统的空时编码 OFDM 系统模型及误码率性能的基础上,提出了 Turbo 码级联空时格码的 OFDM 系统方案；并给出了该系统在无线瑞利衰落信道中的性能上界和误码率仿真结果,仿真结果表明：该系统能最大限度地利用所有的分集资源,获得相当大的分集增益和编码增益。
First introduces the traditional space-time coding OFDM system model and its BER performance, then an OFDM system with cascaded Turbo coding and space-time trellis coding is proposed, The performance analysis and computer simulation results of this novel system over the wireless rayleigh fading channel show that the system can explore all the diversity resources and the performance can be improved a lot.
出处
《无线电通信技术》
2006年第1期62-64,共3页
Radio Communications Technology
关键词
正交频分复用Turbo码
空时格码
级联
orthogonal frequency division multiplex
Turbo coding
space-time trellis coding
cascade
