Robust Power Control for Amplify-and-Forward Relaying Scheme

Power control problem is investigated for amplify-and-forward cellular relay network in this letter. Since the wireless channels vary with time, we aim at a power allocation scheme that is robust to the fluctuations. An optimization problem is formulated which targets at utility maximization subject...

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Bibliographic Details
Published in:IEEE communications letters Vol. 19; no. 2; pp. 263 - 266
Main Authors: Liu, Zhixin, Yuan, Huanhuan, Li, Hongxiang, Guan, Xinping, Yang, Hongjiu
Format: Journal Article
Language:English
Published: New York IEEE 01.02.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
amplify-and-forward
Fading
Optimization
Power control
Relay networks (telecommunications)
Resource management
robust distributed algorithm
Robustness
utility maximization
robust distributed algorithm
amplify-and-forward (AF)
utility maximization
Power control
ISSN:1089-7798, 1558-2558
Online Access:Get full text
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Summary:Power control problem is investigated for amplify-and-forward cellular relay network in this letter. Since the wireless channels vary with time, we aim at a power allocation scheme that is robust to the fluctuations. An optimization problem is formulated which targets at utility maximization subject to a pre-defined outage probability threshold and limited power at relay station. With that, a distributed iterative algorithm is proposed to obtain the optimal power. Numerical results show the effectiveness of the algorithm, and also present the robustness of this system.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2014.2379718