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Wireless Personal Communications
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19-05-2020

Interference Alignment in Relay-Aided Networks with Imperfect CSIT

Authors: Yue Tian, Zhanwei Wang

Published in: Wireless Personal Communications | Issue 2/2020

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Abstract

In this paper, a relay-aided interference alignment (RIA) strategy was considered based on the benefits offered by relay-based cooperative networks. Along with the benefits offered by cooperative networks, the RIA was shown as a practical solution for a K-user BC network. The relationship between the achievable DoF region of the RIA and the different levels of outdated channel state information (CSI) were derived. The trade-off between the NRIA and RIA were analysed and the specific trade-off region in each outdated CSI assumption was indicated in the numerical results. Through the achievable DoF numerical results, it was recognised that regarding achievable DoF, the RIA outperforms the NRIA in most of the outdated CSI scenarios.
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Literature
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Metadata
Title
Interference Alignment in Relay-Aided Networks with Imperfect CSIT
Authors
Yue Tian
Zhanwei Wang
Publication date
19-05-2020
Publisher
Springer US
Published in
Wireless Personal Communications / Issue 2/2020
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-020-07410-2

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