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Dakshi Agrawal's homepage   >   Publications   >
Multiple-antenna signal constellations for fading channels

Written by: Dakshi Agrawal, Thomas J Richardson, and Ruediger L Urbanke.

Citation: Proceedings of IEEE International Symposium on Information Theory, 2000, page 365, June 2000.

Copyright © (2000) by IEEE. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee.

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Abstract:
In this paper, we design multiple-antenna signal constellations for a Rayleigh flat-fading channel unknown to the receiver. It is shown that good signal constellations correspond to packings with large minimum distances in complex Grassmannian space. We describe a numerical optimization procedure for finding such packings. The corresponding signal constellations improve significantly upon previously best-known signal constellations.
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