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两用户分层Alamouti码编码的多入多出系统采用最大似然译码能获得满分集增益,但复杂度较高,若利用复杂度较低的部分干扰相消(PIC)和串行干扰相消(SIC)辅助的PIC-SIC分组译码则会损失分集增益,为此提出一种编码方案,并证明此方案在接收天线数为N时利用PIC-SIC分组译码能获得满分集增益2N.仿真结果表明,新编码方案相对于分层Alamouti码能获得更优的误码率性能和更高的分集增益.
The two-user hierarchical Alamouti code-based MIMO system uses maximum-likelihood decoding to achieve full-diversity gain, but with high complexity. If the PIC with lower complexity and serial interference phase (SIC) -assisted PIC-SIC packet decoding will lose the diversity gain, a coding scheme is proposed for this purpose and it is proved that this scheme can achieve full diversity gain of 2N using PIC-SIC packet decoding when the number of receiving antennas is N The simulation results show that the new coding scheme can achieve better error rate performance and higher diversity gain than layered Alamouti codes.