An iterated channel estimation and tracking scheme for space-time code systems

Authors:
Zhenghang Yan;Yilong Lu;Maode Ma;Yuhang Yang
Affiliations:
Nanyang Technological University, Singapore;Nanyang Technological University, Singapore;Nanyang Technological University, Singapore;Shanghai Jiao Tong University, Minhang District, Shanghai, China
Venue:
ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
Year:
2008

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Abstract

In this paper, we propose an iterated channel estimation and tracking scheme for time-varying fading multi-input multi-output (MIMO) channels in a space-time code (STC) system. The proposed space-time recoding scheme is, in fact, a pseudo blind channel estimation method in the MIMO systems. It is shown that the new scheme, using the space-time recoding at the receiver for channel tracking, can provide significant error performance gains with the same channel utilization or tremendously improve channel utilization keeping same error performance of those without tracking. The new channel tracking scheme can be easily generalized to the system with M receiving antennas and N transmission antennas, or any other space-time code scenarios.