电讯技术2025，Vol.65Issue(2)：223-230,8.DOI:10.20079/j.issn.1001-893x.231212004
一种基于ZP-OTFS的低复杂度SSOR检测算法
A Low Complexity SSOR Detection Algorithm Based on ZP-OTFS
摘要
Abstract
To solve the problem that the linear minimum mean square error(LMMSE)detection complexity of orthogonal time frequency space(OTFS)system is too high to be realized quickly and effectively in high-speed mobile scenes,a block-by-block Symmetric Successive over Relaxation(SSOR)iterative algorithm is proposed based on the block-diagonal sparsity of the time-domain channel matrix of zero-padding(ZP)OTFS system.The system complexity is reduced and the performance is similar to that of LMMSE detection.Simulation results show that compared with Successive over Relaxation(SOR)algorithm,the proposed algorithm is not sensitive to the relaxation parameter and has faster convergence speed.When the number of iterations is 10,the bit error performance of the proposed algorithm almost reaches the LMMSE bit error performance,which significantly reduces the complexity of the detector.关键词
ZP-OTFS/线性最小均方误差(LMMSE)/信号检测/SSOR迭代检测Key words
zero-padding orthogonal time frequency space(ZP-OTFS)/linear minimum mean square error(LMMSE)/signal detection/symmetric successive over relaxation(SSOR)iterative detection分类
电子信息工程引用本文复制引用
何茂恒,张薇..一种基于ZP-OTFS的低复杂度SSOR检测算法[J].电讯技术,2025,65(2):223-230,8.基金项目
电子信息系统复杂电磁环境效应国家重点实验室资助课题(CEMEE2021K0101A) （CEMEE2021K0101A）
