Non-regenerative multicarrier MIMO relay communications based on minimization of mean-squared error

Authors:
Yue Rong
Affiliations:
Department of Electrical and Computer Engineering, Curtin University of Technology, Bentley, WA, Australia
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 3
Cited 1

Convex Optimization

Convex Optimization
Optimal Design of Non-Regenerative MIMO Wireless Relays

IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior

IEEE Transactions on Information Theory

A unified framework for optimizing linear nonregenerative multicarrier MIMO relay communication systems

IEEE Transactions on Signal Processing

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper we propose non-regenerative multi-carrier multiple-input multiple-output (MIMO) relay techniques that minimize the mean-squared error (MSE) of the signal wave-form estimation. We establish the closed-form optimal precoding matrices at the source and relay nodes in the absence of the direct source-destination link. Interestingly, we show that the proposed precoding matrices jointly convert the multicarrier MIMO relay channel into parallel single-input single-output (SISO) relay channels. In order to reduce the computational complexity of the optimal algorithm, a suboptimal precoding approach based on an upper-bound of the MSE expression is developed. Numerical examples illustrate a significant performance improvement of the proposed algorithms over the existing techniques.