Compressive Channel Estimation for Two-way Relay Network in a Frequency-Selective Channel with Compressed Sensing

Details Compressive Channel Estimation for Two-way Relay Network in a Frequency-Selective Channel with Compressed Sensing Compressive Channel Estimation for Two-way Relay Network in a Frequency-Selective Channel with Compressed Sensing

2010-08-17

arxiv.org/abs/1008.2873v1

Computer Science

Information Theory

2 pages, 2 figures, 1 table, conference

Scientific paper

Two-way relay network (TWRN) was introduced to realize high-data rate transmission over the wireless frequency-selective channel. However, TWRC requires the knowledge of channel state information (CSI) not only for coherent data detection but also for the self-data removal. This is partial accomplished by training sequence-based linear channel estimation. However, conventional linear estimation techniques neglect anticipated sparsity of multipath channel. Unlike the previous methods, we propose a compressive channel estimation method which exploit the sparse structure and provide significant improvements in MSE performance when compared with traditional LSbased linear channel probing strategies. Simulation results confirm the proposed methods.

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