Research Article
Enhancing Performance of Asynchronous Cooperative Relay Network with Partial Feedback
@INPROCEEDINGS{10.1007/978-3-319-74176-5_16, author={The-Nghiep Tran}, title={Enhancing Performance of Asynchronous Cooperative Relay Network with Partial Feedback}, proceedings={Industrial Networks and Intelligent Systems. 3rd International Conference, INISCOM 2017, Ho Chi Minh City, Vietnam, September 4, 2017, Proceedings}, proceedings_a={INISCOM}, year={2018}, month={1}, keywords={Partial feedback Near-optimum detection Inter-symbol interference Distributed space-time code Asynchronous cooperative network}, doi={10.1007/978-3-319-74176-5_16} }- The-Nghiep Tran
Year: 2018
Enhancing Performance of Asynchronous Cooperative Relay Network with Partial Feedback
INISCOM
Springer
DOI: 10.1007/978-3-319-74176-5_16
Abstract
Distributed close-loop extended orthogonal space-time block code (DCL EO-STBC) was demonstrated to achieve a significant improvement of performance for closed-loop cooperative relay network systems with limited feedback channel. This paper proposes a decode-and-forward (DF) cooperative strategy with using partial feedback in stead of DCL EO-STBC to obtain a distributed cooperative diversity gain. Based on the partial phase feedback technique, the new scheme has only previous inter-symbol interference (ISI) components in the received signals and obtains an enhancing system performance in term of signal-noise power ratio (SNR) at the destination node. Theoretical analysis and Monte-Carlo simulations confirm that the using near-optimum detection (NOD) at the destination can completely remove interference components before detection process. In comparison to previous DCL EO-STBC scheme, this work not only has simpler signal processing due to not using DCL EO-STBC endcoder and decoder, but also outperforms sytem performance without decrease transmission rate.