【摘要】 介绍了基于3GPP系列协议的LTE系统物理层基带下行发射接收模块化结构,尤其是接收侧的MIMO译码模块。针对LTEMIMO译码算法运用较多的ZF以及MMSE算法,利用矩阵分解思想提出优化思路以降低译码算法复杂度,然后详细分析Cholesky分解对MIMO译码算法的适用性和局限性,最后提出一种改进算法并验证其性能。更多还原

【Abstract】 It began with the introduction of the modules architecture of downlink transmitter and receiver of physical layer for LTE system based on 3GPP series agreements, especially the MMO decoding module on the receiver. For the ZF and MMSE decoding algorithms, making use of matrix factorization to improve the complexity of MIMO decoding algorithms. At last, analyzed the applicability and limitations of conventional Cholesky factorization applied in MIMO decoding, proposed and verified a improved algorithm.更多还原