论文部分内容阅读
SM-MIMO(Spatial Multiplex-Multiple Input Multiple Output)系统可以实现大吞吐率和高频谱效率,不同的检测算法将使接收机获得不同的接收分集增益,但SM-MIMO系统对空间的相关性比较敏感。而联合Turbo编解码,由于Turbo码的交织作用可以使接收机很好的对抗空间相关性带来的性能损失。另外,SM-MIMO系统还将获得额外的编码增益。通过仿真可以看到,不管空间信道是否相关,Turbo编解码可以明显改善系统的误比特率性能。
SM-MIMO (Spatial Multiplex-Multiple Input Multiple Output) system can achieve high throughput and high spectral efficiency, different detection algorithms will make the receiver gain different receiver diversity gain, but SM-MIMO system is more sensitive to spatial correlation . The joint Turbo codec, due to Turbo code interleaving effect can make the receiver good against space-related performance losses. In addition, the SM-MIMO system will also obtain additional coding gain. It can be seen through the simulation that Turbo codec can obviously improve the system’s bit error rate performance, regardless of whether spatial channels are correlated or not.