Title :
Multiple-antenna signal constellations for fading channels
Author :
Agrawal, Dakshi ; Richardson, Thomas J. ; Urbanke, Rüdiger L.
Author_Institution :
Bell Labs., Lucent Technol., Murray Hill, NJ, USA
fDate :
9/1/2001 12:00:00 AM
Abstract :
In this correspondence, we show that the problem of designing efficient multiple-antenna signal constellations for fading channels can be related to the problem of finding packings with large minimum distance in the complex Grassmannian space. We describe a numerical optimization procedure for finding good packings in the complex Grassmannian space and report the best signal constellations found by this procedure. These constellations improve significantly upon previously known results
Keywords :
Rayleigh channels; antenna arrays; antenna theory; optimisation; complex Grassmannian space; design; fading channels; minimum distance; multiple-antenna signal constellations; numerical optimization procedure; packings; Binary sequences; Combinatorial mathematics; Constellation diagram; Cryptography; Fading; Geometry; Gold; Notice of Violation; Random sequences; Spread spectrum communication;
Journal_Title :
Information Theory, IEEE Transactions on
