通信学报2025，Vol.46Issue(1)：13-22,10.DOI:10.11959/j.issn.1000-436x.2025010
高速移动环境下OTSM B-LMMSE-PIC迭代检测方法
B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment
摘要
Abstract
To improve the reliability of orthogonal time sequency multiplexing(OTSM)transmission in high-speed mo-bile environments,a block linear minimum mean square error with parallel interference cancellation(B-LMMSE-PIC)it-erative detection method was proposed.The MMSE-PIC symbol estimation was performed in the time domain by block,and the Neumann series approximation was used for matrix inversion,which reduced the computational complexity to linear order.Subsequently,the mean and variance of the estimated symbols in the delay-sequency domain were calcu-lated to provide prior information for the next iteration.Simulation results demonstrated that,under conditions of 540 km/h mobile speed and 16QAM modulation with a BER of 10-4,the proposed method achieves a performance gain of 2.48 dB compared to the widely used iterative rake detection algorithm based on maximum ratio combining(MRC).关键词
正交时序复用/线性最小均方误差/并行干扰消除/诺伊曼级数Key words
orthogonal time sequency multiplexing/linear minimum mean square error/parallel interference cancella-tion/Neumann series分类
电子信息工程引用本文复制引用
李国军,郑翔,王杰..高速移动环境下OTSM B-LMMSE-PIC迭代检测方法[J].通信学报,2025,46(1):13-22,10.基金项目
国家自然科学基金资助项目(No.U22A2006) （No.U22A2006）
重庆市自然科学基金资助项目(No.CSTB2023NSCQ-LZX0082) The National Natural Science Foundation of China(No.U22A2006),The Natural Science Foundation of Chongqing(No.CSTB2023NSCQ-LZX0082) （No.CSTB2023NSCQ-LZX0082）
