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Receive Knowledge Only Power Allocation for Nonregenerative Cooperative MIMO Communication

Héliot, F, Fazel, S, Hoshyar, R and Tafazolli, R (2009) Receive Knowledge Only Power Allocation for Nonregenerative Cooperative MIMO Communication In: IEEE SPAWC'09, 2009-06-21 - 2009-06-24, Perugia, Italy.

Receive_Knowledge_Only_Power_Allocation_for_Nonregenerative_Cooperative_MIMO_Communication.pdf - Published Version

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Amplify-and-forward (AF) is one of the most popular approaches to transmit information over a cooperative multi-input multi-output (MIMO) relay channel. In AF, relay simply amplifies and retransmits the received signal from the source by relying only on the receive channel state information (CSI) available at the relay. In this paper we propose two novel power allocation methods for nonregenerative cooperative communication, assuming as in original AF that only receive CSI is available at the relay. Both methods have been designed to maximize the mutual information of the relay link: the first method by using an analytical solution and the second by solving a concave optimization problem. Performance of both our methods have been compared against traditional AF power allocation techniques in a MIMO environment, and results have demonstrated the efficiency of these methods in terms of mutual information and bit-error rate.

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: 17 Nov 2010 13:35
Last Modified: 23 Sep 2013 18:39

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