A design scheme for interference suppression based on CWBIM  

作　　者：王蕴哲 MA Tianming JIANG Xiaoxiao MA Honglei WANG Yunzhe;MA Tianming;JIANG Xiaoxiao;MA Honglei(School of Electrical and Electronic Engineering,Shanghai University of Engineering Science,Shanghai 201620,P.R.China)

机构地区：[1]School of Electrical and Electronic Engineering,Shanghai University of Engineering Science,Shanghai 201620,P.R.China

出　　处：《High Technology Letters》2024年第2期179-187,共9页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.61601296,61701295);the Science and Technology Innovation ActionPlan Project of Shanghai Science and Technology Commission(No.20511103500);the Talent Program of Shanghai University of Engineer-ing Science(No.2018RC43)。

摘　　要：An interference suppression design scheme based on conjugate weighted butterfly interleaving mapping(CWBIM)is proposed for inter-carrier interference(ICI)and inter-subband interference(IBI)in the received signals of universal filtered multi-carrier(UFMC)systems.It applies an interleaving mapping operation to subtract the interference coefficients of adjacent terms in ICI and IBI twice,thereby achieving suppression effects similar to the self-cancellation(SC)algorithm while maintaining the original data transmission efficiency.Meanwhile,conjugate and complex weighting operations can effectively suppress the impact of phase rotation errors in high-speed mobile channel environments,thereby further improving the bit error rate(BFR)performance of the system,Moreover,butterfly operation can effectively control the computational complexity of the interleaving mapping process.Theoretical analysis and simulation results show that,compared with the PSC-UFMC algorithm,the CWBIM-UFMC scheme proposed in this paper can effectively suppress ICI and IBI in the received signal without compromising data transmission efficiency and reducing computational complexity,thereby achieving good BER performance of the system.

关 键 词：universal filtered multi-carrier(UFMC) inter-carrier interference(ICI) intersubband interference(IBI) butterfly interleaving mapping 

分 类 号：TN929.5[电子电信—通信与信息系统]