Jointly Tracking Dispersive Channels and Carrier Frequency-Offset in MIMO-OFDM Systems
Multiple-input multiple-output with orthogonal frequency division multiplexing (MIMO-OFDM) is one of the promising schemes for future wireless communication systems. However, the carrier frequency-offset (CFO) and dispersive channels are great challenges in practice. In this paper, a new method is proposed to jointly track channel and CFO parameters in MIMO-OFDM for mobile user. The initial values of channels and CFO are first estimated jointly based on maximum likelihood (ML) criterion using one pilot symbol and then the CFO and time-varying channels are tracked by exploiting the finite alphabet (FA) property of the transmitted symbols. Simulation results show that the proposed method has well tracking performance in typical urban channel model.
Jun Li Guisheng Liao Shan Ouyang
National Lab. Of Radar Signal Processing Xidian University Xian 710071, P. R. China Department of Communication and Information Engineering Guilin University of Electronic Technology G
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
816-819
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）