@inproceedings{8bc5530bf6ac4f07b32001ea8c008d7a,
title = "Optimization of relay selection in DF cooperative systems with outdated CSI",
abstract = "Relay selection has been considered as an effective method to improve the performance of cooperative communication. However, the Channel State Information (CSI) used in relay selection can be outdated, yielding severe performance degradation of cooperative communication systems. In this paper, we investigate the relay selection under outdated CSI in a Decode-and-Forward (DF) cooperative system to improve its outage performance. We formulize an optimization problem, where the set of relays that forwards data is optimized to minimize the probability of outage conditioned on the outdated CSI of all the decodable relays{\textquoteright} links. We then propose a novel multiple-relay selection strategy based on the solution of the optimization problem. Simulation results show that the proposed relay selection strategy achieves large improvement of outage performance compared with the existing relay selection strategies combating outdated CSI given in the literature.",
keywords = "Cooperative communication, Outage performance, Outdated CSI, Relay selection",
author = "L. Fei and J. Zhang and Q. Gao and Peng, {X. H.}",
note = "Publisher Copyright: {\textcopyright} 2015 Taylor & Francis Group, London.; International Conference on Future Communication, Information and Computer Science, FCICS 2014 ; Conference date: 22-05-2014 Through 23-05-2014",
year = "2015",
doi = "10.1201/b18049-12",
language = "English",
isbn = "9781138026537",
series = "Future Communication, Information and Computer Science - Proceedings of the International Conference on Future Communication, Information and Computer Science, FCICS 2014",
publisher = "CRC Press/Balkema",
pages = "45--50",
editor = "Dawei Zheng",
booktitle = "Future Communication, Information and Computer Science - Proceedings of the International Conference on Future Communication, Information and Computer Science, FCICS 2014",
}