Two-Way Amplify-and-Forward MIMO Relay Communications Using Linear MMSE Receiver
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Authors
Rong, Yue
Date
2011Type
Conference Paper
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Rong, Yue. 2011. Two-Way Amplify-and-Forward MIMO Relay Communications Using Linear MMSE Receiver, in Australian Communications Theory Workshop (AusCTW), Jan 31 - Feb 03 2011. Melbourne: IEEE.
Source Title
Proceedings of The 2011 Australian Communications Theory Workshop
Source Conference
The 2011 Australian Communications Theory Workshop
ISBN
School
Department of Electrical and Computer Engineering
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Abstract
In this paper, we derive the optimal structure of the source precoding matrices and the relay amplifying matrix for a two-way amplify-and-forward multiple-input multiple-output (MIMO) relay communication system where linear minimal mean-squared error (MMSE) receivers are used at both destinations. We show that for a broad class of frequently used objective functions for MIMO communications, the optimal relay and source matrices have a general beamforming structure. Based on this optimal structure, a new iterative algorithm is developed to optimize the relay and source matrices. The performance of the proposed algorithm is demonstrated by numerical simulations.
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