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Non-Regenerative Multi-Hop MIMO Relays Using MMSE-DFE Technique

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Open access
Authors
Rong, Yue
Date
2010
Type
Conference Paper

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Rong, Yue. 2010. Non-Regenerative Multi-Hop MIMO Relays Using MMSE-DFE Technique, in Wang, H. (ed), 53rd IEEE Global Telecommunications Conference, Dec 6 2010. Miami, FL, USA: IEEE.
Source Title
Proceedings of 53rd IEEE Global Telecommunications Conference
Source Conference
53rd IEEE Global Telecommunications Conference
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Department of Electrical and Computer Engineering
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Abstract

In this paper, we study multi-hop non-regenerative multiple-input multiple-output (MIMO) relay communications with any number of hops.We design the optimal source precoding matrix and the optimal relay amplifying matrices for such relay network where a nonlinear decision feedback equalizer (DFE) based on the minimal mean-squared error (MMSE) criterion is used at the destination node. We show that when the composite objective function is Schur-convex, the MMSE-DFE receiver together with the optimal source and relay matrices enable an arbitrary number of source symbols to be transmitted at one time, and yield a significantly improved performance compared with non-regenerative MIMO relay systems using linear receivers at the destination.