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Optimal Training Sequences for Frequency-Selective MIMO Correlated Fading Channels

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4 Author(s)
Jiyong Pang ; Broadband Wireless Commun. Lab., Xidian Univ., Xi''an ; Jiandong Li ; Linjing Zhao ; Zhuo Lu

Optimal design of training sequences for multiple-input multiple-output (MIMO) channel estimation is considered. The channel is assumed to be frequency-selective and obey block-fading law with both spatial fading correlation and multipath tap gain correlation known at both the transmitter and receiver. To minimize the channel estimation error, optimal training sequences are designed to exploit full information of channel correlation under the criterion of minimum mean square error (MMSE). It is investigated that channel correlation is helpful to decrease the estimation error and the proposed training sequences have good performance via simulations.

Published in:

Advanced Information Networking and Applications, 2007. AINA '07. 21st International Conference on

Date of Conference:

21-23 May 2007