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First-order asymptotics of the BICM mutual information: Uniform vs. nonuniform distributions

Erik Agrell (Institutionen för signaler och system, Kommunikationssystem) ; Alex Alvarado
Information Theory and Applications Workshop (ITA) 2012, San Diego, CA [Invited] p. 306 - 310. (2012)
[Konferensbidrag, refereegranskat]

A linear, invertible transform is defined between two vectors or matrices as a tool for analyzing the bit-interleaved coded modulation (BICM) mutual information in the wideband regime. The transform coefficients depend on a set of real values, which can be interpreted as probabilities. The transform relates any BICM system with a nonuniform input distribution to another BICM system with a uniform distribution. Numerical evidence suggests that the two systems have the same first-order behavior, which would make possible to analyze nonuniform BICM systems based on known properties of uniform BICM systems.



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Denna post skapades 2012-04-29. Senast ändrad 2016-04-28.
CPL Pubid: 157201

 

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