文献类型：会议论文

英文题名：A Novel ICI Triple Cancellation Scheme in Fast Time-varying Environment for OFDM Systems

作者：Ye, Jiongyao[1];Wang, Hengxiao[1];Yuan, Weina[1];Wang, Nan[1];Xu, Rui[1]

机构：[1]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

会议论文集：International Joint Conference on Materials Science and Mechanical Engineering (CMSME)

会议日期：FEB 24-26, 2018

会议地点：Asian Inst Technol, Bangkok, THAILAND

主办单位：Asian Inst Technol

语种：英文

摘要：In fast time-varying environment, orthogonal frequency division multiplexing (OFDM) systems lose the orthogonality between subcarriers due to the Doppler effect, resulting in inter-carrier interference (ICI), which greatly affects the performance of the communication system. Based on the analysis of the principle of ICI generation in timevarying environment, an ICI triple cancellation scheme is proposed to reduce the ICI of the OFDM systems in fast time-varying environment. In the scheme, the ICI self-cancellation modulation is performed at the transmitter of the OFDM system. Then, the time-varying channel is modeled as a linearly time-varying (LTV) model for ICI dual cancellation. Finally, the ICI self-cancellation demodulation is executed at the receiver of the system. Simulation experiment results show that the proposed ICI triple cancellation scheme can achieve a better effect of ICI cancellation than ICI self-cancellation scheme and ICI dual cancellation scheme, improving the performance of the communication system.