【摘要】 针对分组空时块码(G-STBC)多发多收(MIMO)系统中的信号检测问题,提出了一种新的排序最小均方误差(MMSE)串行干扰消除(SIC)检测算法.新算法基于“G-STBC等效信道模型”,并采用一个新的低复杂度的排序标准——“等效检测后信干噪比(POST-SINR)”,可用于存在较多组的G-STBC系统中.通过仿真比较,验证了该算法有效挖掘G-STBC系统提供分集增益的能力,反映了算法采用IC和排序引入的性能优势,并证实了“等效POST-SINR”的有效性.更多还原

【Abstract】 Aiming at the problem of signal detection in group-wise space-time block coding (G-STBC) multiple-input multiple-output (MIMO) systems,a novel ordering minimum mean square error (MMSE) successive interference cancellation detection algorithm was proposed. The proposed algorithm,which is based on an established “G-STBC eguivalent channel model”and uses a new low-complexity ordering criterion, (equivalent) post-detection SINR, can be applied in G-STBC systems with more than two groups. The (simulation) results show that the algorithm can effectively exploit the additional diversity potential that G-STBC systems provide, and obtain the additional performance margin compared with its competing counterparts by adopting interference cancellation (IC) and optimized ordering.The validity of the new ordering criterion is also confirmed .更多还原