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Mimo Relaying for Multi-Point to Multi-Point Communication in Wireless Networks

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3 Author(s)
Chalise, B.K. ; Commun. & Remote Sensing Lab., Univ. catholique de Louvain, Louvain-la-Neuve ; Vandendorpe, L. ; Louveaux, J.

In this paper, we propose a relaying scheme that uses a fixed multiple-input-multiple-output (MIMO) relay to improve the performance of the multi-point to multi-point communication in wireless networks. Under the assumption that the perfect channel state information (CSI) is known, we propose the MIMO relay which minimizes its total transmit power by satisfying the signal-to-interference-and-noise-ratio (SINR) requirement for all destinations. This paper shows that the aforementioned problem is non-convex but it can be relaxed to a convex problem using the semidefinite relaxation technique. Computer simulations show that the proposed MIMO relay outperforms the conventional all-pass MIMO relay.

Published in:

Computational Advances in Multi-Sensor Adaptive Processing, 2007. CAMPSAP 2007. 2nd IEEE International Workshop on

Date of Conference:

12-14 Dec. 2007