One-Bit Quantizers for Fading Channels
Information Theory
2011-12-23 v1 math.IT
Abstract
We study channel capacity when a one-bit quantizer is employed at the output of the discrete-time average-power-limited Rayleigh-fading channel. We focus on the low signal-to-noise ratio regime, where communication at very low spectral efficiencies takes place, as in Spread Spectrum and Ultra-Wideband communications. We demonstrate that, in this regime, the best one-bit quantizer does not reduce the asymptotic capacity of the coherent channel, but it does reduce that of the noncoherent channel.
Keywords
Cite
@article{arxiv.1112.5314,
title = {One-Bit Quantizers for Fading Channels},
author = {Tobias Koch and Amos Lapidoth},
journal= {arXiv preprint arXiv:1112.5314},
year = {2011}
}
Comments
4 pages. To be presented at the 2012 International Zurich Seminar on Communications (IZS)