【摘要】 提出了基于空时MMSE准则的频率选择性信道下V-BLAST检测方案,并给出了最佳均衡条件和两种自适应空时均衡算法。所提均衡算法无需进行信道估计,无需对信道矩阵求逆,大大降低了计算复杂度,且能自适应信道变化。通过仿真实验,证明了所提均衡算法的有效性,并给出了实用多天线系统的合理配置。更多还原

【Abstract】 In order to extend it to frequency-selective channels,a detection scheme for V-BLAST over frequency- selective channels,which is based on space-time MMSE criterion,is proposed.The equalization condition and two adaptive space-time equalization algorithms are given.Both algorithms do not require channel estimation and avoid channel matrix inverse,so the computational burden is greatly reduced.Furthermore,the proposed algorithms are able to adapt the equalizer to the channel change.Finally,simulation results show the effectiveness of the both proposed algorithms.The reasonable configurations of multiple antenna systems are also given.更多还原