An Adaptive Inter-Carrier Interference Mitigation Method for MIMO-OFDM Systems in HST Environment
In this paper,we propose an adaptive inter-carrier interference(ICI)mitigation algorithm based on phase rotated conjugate cancellation(PRCC)scheme.For the MIMO-OFDM systems in high-speed train(HST)environment,the ICI is caused by the non-stationary time-varying channels.By updating the optimal phases every two OFDM symbols,our method achieves additional optimal rotated phases applicable for HST wireless channels.Simulation results demonstrate that the carrier-to-interference ratio(CIR)increase and the bit error rate(BER)decreases enormously in our method.Therefore,the proposed adaptive algorithm is effective for mitigating the ICI in HST environment comparing with the traditional ICI self-cancellation algorithm.
MIMO-OFDM high-speed train environment inter-carrier interference adaptive phase rotated conjugate cancellation
Yuzhou Wu Wuchen Jiao Guanmin He Wenbo Zhu Yong Fang
Shanghai Institute for Advanced Communication and Data Science,Key laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication Shanghai University,Shanghai,China
国际会议
上海
英文
36-40
2018-12-22(万方平台首次上网日期,不代表论文的发表时间)