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在Turbo-MIMO系统中使用的一种信号检测器,它利用MMSE检测器得到可能的发射信号矢量的一个集合,同时对先验信息使用M算法找到另一个发射信号矢量集合,利用这两部分矢量集合,我们可以得到一个大大缩小的候选矢量集合,从而能大大减小系统复杂度。仿真结果表明,在使用QPSK星座时,该算法在误码率性能上和MAP检测算法只有1dB的差距。
A signal detector for use in a Turbo-MIMO system that uses a MMSE detector to obtain a set of possible transmit signal vectors while using the M algorithm to find another set of transmit signal vectors for prior information using the two part vectors Set, we can get a greatly reduced candidate vector set, which can greatly reduce the system complexity. The simulation results show that the algorithm has only 1dB difference from the MAP detection algorithm when using the QPSK constellation.