【摘要】 对线性接收双空时发射分集系统提出一种新的接收天线选择方案,通信系统在增加较小的实现复杂度的情况下可以有效的改善系统的信道状态,抑制不同子数据流间的干扰,降低系统的误码率(BER)。结合发射天线重分组(TAS)方案,不同子数据流间的干扰可以得到更好的抑制,系统性能得到进一步的提高。仿真表明,在增加较少的反馈信息冗余及系统硬件实现复杂度的情况下,系统的性能得到了很大的改善。更多还原

【Abstract】 A new receive antenna selection scheme which can improve diversity gains for DSTTD system is proposed. This scheme needs low computational complexity. The performance of the DSTTD system using the proposed scheme is analyzed, and it shows better bit error rate than the conventional method. Still the performance of DSTTD systems can be further improved by using transmit antenna shuffling scheme in which the transmit antennas grouped according to the shuffling pattern information feedback by the receiver. As the results show, with limited information redundancy, the system capability achieves further improvement.更多还原