Joint Frequency Offset and Channel Estimation for Distributed MIMO in Time-Varying Channels

Authors

Lijun Song, Chengdu University of Information Technology, 610225, P. R. China
Zhaofu Kong
Yang Luo
Yinze Li
Xiao Chen
Xia Lei

Author Country (or Countries)

P. R. China

Abstract

In this paper, the joint estimation of frequency offsets and channel for distributed MIMO system in time-varying channel is discussed. We assume that each pair of transmit and receive antennas has a different frequency offset. We promote the multi-parameter estimation based on expectation conditional maximization (ECM) and space-alternating generalized expectation-maximization (SAGE) for a MIMO system operating under a flat-fading environment to the multi-parameter estimation using EM algorithm for distributed MIMO systems in time-varying channel. Theoretical analysis and simulation results indicate that the improvement can well compensate for the performance loss caused by time-variability and achieve good performance for time-varying distributed MIMO systems

Suggested Reviewers

N/A

Digital Object Identifier (DOI)

http://dx.doi.org/10.12785/amis/080659

Recommended Citation

Song, Lijun; Kong, Zhaofu; Luo, Yang; Li, Yinze; Chen, Xiao; and Lei, Xia (2014) "Joint Frequency Offset and Channel Estimation for Distributed MIMO in Time-Varying Channels," Applied Mathematics & Information Sciences: Vol. 08: Iss. 6, Article 59.
DOI: http://dx.doi.org/10.12785/amis/080659
Available at: https://digitalcommons.aaru.edu.jo/amis/vol08/iss6/59