文献类型：期刊文献

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] School of Information Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2018

卷号：383

期号：1

外文期刊名：IOP Conference Series: Materials Science and Engineering

收录：EI(收录号：20183005612821)

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 time-varying 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. ? Published under licence by IOP Publishing Ltd.