DocumentCode :
981316
Title :
Orthogonal Affine Precoding and Decoding for Channel Estimation and Source Detection in MIMO Frequency-Selective Fading Channels
Author :
Tran, Nguyen Nam ; Pham, Duong H. ; Tuan, Hoang Duong ; Nguyen, Ha H.
Author_Institution :
Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW
Volume :
57
Issue :
3
fYear :
2009
fDate :
3/1/2009 12:00:00 AM
Firstpage :
1151
Lastpage :
1162
Abstract :
A new affine precoding and decoding method for multiple-input multiple-output (MIMO) frequency-selective fading channels is proposed. The optimal design of the affine precoder consists of a linear precoder and a training sequence, which is superimposed on the linearly precoded data in an orthogonal manner. The channel is estimated independently of the data, while the training sequence is completely nulled out in the source data detection. Furthermore, the optimal power allocation between the data and training signals is also analytically derived. Simulation results show that the proposed method is significantly better than other affine precoding methods with regard to source detection performance and computational complexity.
Keywords :
MIMO communication; channel coding; channel estimation; computational complexity; decoding; fading channels; precoding; MIMO frequency-selective fading channels; channel estimation; computational complexity; linear precoder; multiple-input multiple-output; orthogonal affine precoding-decoding; source detection; source detection performance; Affine precoding; MIMO channel estimation; decoding; source detection; superimposed training;
fLanguage :
English
Journal_Title :
Signal Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1053-587X
Type :
jour
DOI :
10.1109/TSP.2008.2009020
Filename :
4668432
Link To Document :
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