On Outage Capacity for Incremental Relaying with Imperfect Feedback
Abstract
We investigate the effect of imperfect feedback on the \epsilon-outage capacity of incremental relaying in the low signal-to-noise ratio (SNR) regime. We show that imperfect feedback leads to a rescaling of the pre-log factor (comparable to the multiplexing gain for networks operating in the high SNR regime) and thus reduces the \epsilon-outage capacity considerably. Moreover, we investigate the effect of different degrees of feedback reliability on the system performance. We further derive a simple binary tree-based construction rule to analyze networks with an arbitrary number of relay nodes with respect to imperfect feedback. This rule can directly be mapped to a comprehensive matrix notation.
Cite
@article{arxiv.1001.2117,
title = {On Outage Capacity for Incremental Relaying with Imperfect Feedback},
author = {Tobias Renk and Holger Jaekel and Friedrich Jondral},
journal= {arXiv preprint arXiv:1001.2117},
year = {2010}
}
Comments
5 pages, 4 figures, submitted to IEEE International Symposium on Information Theory, Austin, TX, June 13-18, 2010