摘要
针对时域最小二乘信道估计算法误码率性能和实际实现复杂度大之间的矛盾,提出了一种新的最优导频序列的多输入多输出正交频分复用信道估计方法。设计的这种导频序列可以避免对大矩阵求伪逆,极大的降低了计算复杂度。计算机仿真结果表明:提出的方法具有好的误码率性能和低的计算复杂度,易于在实际系统中实现。
In the lignt of the contradiction between BER performance of time-domain least squares（LS） channel estimation and the actual implementation complexity,a novel design method of optimal pilots sequence for multiple input multiple output-orthogonal frequency division multiplexing（MIMO-OFDM） is proposed.This design requires no large matrix pseudo-inversion,and could greatly reduces computing complexity of the algorithm.Simulation results show that the proposed method could provide better BER performance and lower computing complexity,and is easy to implement in practical systems.
出处
《通信技术》
2010年第6期96-97,100,共3页
Communications Technology
关键词
多输入多输出正交频分复用
信道估计
最优导频序列
Multiple input multiple output-orthogonal frequency division multiplexing
channel estimation
optimal pilot sequence
