DocumentCode :
2575814
Title :
Two-way relay channel estimation based on compressive sensing
Author :
Yuan, Wenwen ; Zheng, Baoyu ; Yue, Wenjing ; Wang, Lei
Author_Institution :
Inst. of Signal Process. & Transm., Nanjing Univ. of Posts & Telecommun., Nanjing, China
fYear :
2011
fDate :
9-11 Nov. 2011
Firstpage :
1
Lastpage :
5
Abstract :
A method of two-way relay sparse channel estimation based on compressive sensing (CS) is designed. We specifically introduce the orthogonal matching pursuit (OMP) algorithm to reconstruct the channel impulse response of orthogonal frequency division multiplexing (OFDM) system. The introduced method can fully exploit the potential sparsity of two-way relay channels (TWRC). By contrast to traditional linear estimation methods, the introduced method needs much less training sequences under the same estimation performance, thus improving the utilization of communication resources such as spectrum and energy effectively. At the same time, the computational efficiency of the introduced method is always higher than traditional methods as its computational complexity mainly relies on the sparse degree of multipath channels. Simulation results confirm the introduced method.
Keywords :
OFDM modulation; channel estimation; communication complexity; compressed sensing; multipath channels; transient response; wireless channels; OFDM system; channel impulse response; communication resource; compressive sensing; computational complexity; computational efficiency; estimation performance; multipath channel; orthogonal frequency division multiplexing system; orthogonal matching pursuit algorithm; two-way relay sparse channel estimation; Channel estimation; Compressed sensing; Estimation; Matching pursuit algorithms; OFDM; Relays; Training; channel estimation; compressive sensing (CS); orthogonal matching pursuit (OMP); training sequences; two-way relay channel (TWRC);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
Type :
conf
DOI :
10.1109/WCSP.2011.6096825
Filename :
6096825
Link To Document :
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