Diversity versus Multiplexing at Finite Blocklength
Information Theory
2016-11-17 v1 math.IT
Abstract
A finite blocklenth analysis of the diversity-multiplexing tradeoff is presented, based on nonasymptotic bounds on the maximum channel coding rate of multiple-antenna block-memoryless Rayleigh-fading channels.The bounds in this paper allow one to numerically assess for which packet size, number of antennas, and degree of channel selectivity, diversity-exploiting schemes are close to optimal, and when instead the available spatial degrees of freedom should be used to provide spatial multiplexing. This finite blocklength view on the diversity-multiplexing tradeoff provides insights on the design of delay-sensitive ultra-reliable communication links.
Keywords
Cite
@article{arxiv.1406.7315,
title = {Diversity versus Multiplexing at Finite Blocklength},
author = {Johan Östman and Wei Yang and Giuseppe Durisi and Tobias Koch},
journal= {arXiv preprint arXiv:1406.7315},
year = {2016}
}
Comments
Proc. IEEE Int. Symp. Wirel. Comm. Syst. (ISWCS), Aug. 2014, to appear