Abstract
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 inter-leaving 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(BER)performance of the system,Moreo-ver,butterfly operation can effectively control the computational complexity of the interleaving map-ping 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.
基金项目
国家自然科学基金(61601296)
国家自然科学基金(61701295)
Science and Technology Innovation Action Plan Project of Shanghai Science and Technology Commission(20511103500)
Talent Program of Shanghai University of Engineering Science(2018RC43)
国家科技期刊平台
NSTL
万方数据