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Weighted Sum-Rate based Power Allocation for the Uplink of Nonregenerative Cooperative Multi-User MIMO Communication System

Héliot, F, Hoshyar, R and Tafazolli, R (2010) Weighted Sum-Rate based Power Allocation for the Uplink of Nonregenerative Cooperative Multi-User MIMO Communication System In: ICT Future Network & Mobile Summit, 2010-06-16 - 2010-06-18, Florence, Italy.

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Abstract

Amplify-and-forward (AF) is one of the most popular and simple approaches to transmit information over a cooperative multi-input multi-output (MIMO) relay channel. In this paper, we propose a novel power allocation method for the uplink of multi-user MIMO AF cooperative system, which is designed to optimise the weighted sum-rate of the cooperative system. This method provides similar sum-rate performance than algorithms that are designed to solely maximise the sum-rate of the system, and at the same time it increases the fairness of the rate distribution amongst the users. The performance of our method has been assessed against a sum-rate criterion based method, and results have shown clear improvement in terms of the fairness of the user rate distribution.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Fabien Heliot
Date Deposited: 26 Nov 2010 16:03
Last Modified: 23 Sep 2013 18:40
URI: http://epubs.surrey.ac.uk/id/eprint/2661

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