Research Article
Doubly Selective Channel Estimation for Amplify-and-Forward Two-Way Relay Networks
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694686, author={Likun Yang and Gongpu Wang and Bo Ai and Zhangdui Zhong}, title={Doubly Selective Channel Estimation for Amplify-and-Forward Two-Way Relay Networks}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={channel estimation two-way relay network basis expansion model mse crb}, doi={10.1109/ChinaCom.2013.6694686} }- Likun Yang
Gongpu Wang
Bo Ai
Zhangdui Zhong
Year: 2013
Doubly Selective Channel Estimation for Amplify-and-Forward Two-Way Relay Networks
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694686
Abstract
Doubly selective channel estimation is considered for a two-way relay network (TWRN) that comprises two source terminals and an amplify-and-forward (AF) relay. The channel is depicted by complex exponential basis expansion model (CEBEM). It is found that estimating all channel parameters require long training sequence and thus reduce the transmission efficiency. Therefore, estimation algorithm is proposed to estimate some combined channels, and the corresponding Cramer−Rao bound (CRB) is derived. Based on these estimates, detection of the information symbols can be realized at the source nodes. Finally, simulations are provided to corroborate the proposed studies.
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