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Contrasting Orthogonal and Non-orthogonal Space-Time Schemes for Perfectly-Known and Estimated MIMO Channels

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3 Author(s)
Mohammad-ali Khalighi ; Institut Fresnel, UMR CNRS 6133, Marseille, France ; Jean-francois Helard ; Salah Bourennane

We consider the space-time coding issue in MIMO structures and compare the two potential choices of orthogonal and non-orthogonal schemes with a simple iterative detector for the latter case. We show that the choice of non-orthogonal schemes is quite rational and justified, regarding the substantial gain that we can obtain, compared to orthogonal coding. Two cases of perfectly-known channel at receiver and pilot-only-based channel estimation are studied

Published in:

2006 10th IEEE Singapore International Conference on Communication Systems

Date of Conference:

Oct. 30 2006-Nov. 1 2006