叠加空时分组码空间调制方案设计

Superposition space-time block code space modulation scheme

为进一步改善空时分组码空间调制(STBC-SM)系统的误码性能,文中通过重新设计码字结构,提出了一种新的STBC-SM方案——叠加空时分组码空间调制(SSTBC-SM),并给出了适用于该方案的简化ML检测算法。仿真结果表明,提出的方案在频谱效率较高的情况下,可以获得比现有STBC-SM方案更加优异的误码性能。

To improve the error performance of space-time block code space modulation （STBC-SM） sys- tem,a new STBC-SM scheme--superposition space-time block code space modulation （SSTBC-SM） is proposed by redesigning the codeword structure. And a simplified ML detection algorithm for the scheme is provided. Simulation results show that the proposed scheme can obtain better error performance than the existing STBC-SM schemes in the case of high spectral efficiency situation.