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Diversity versus channel knowledge at finite block-length (2012)
| Venue: | in Proc. IEEE Inf. Theory Workshop (ITW |
| Citations: | 9 - 4 self |
BibTeX
@INPROCEEDINGS{Yang12diversityversus,
author = {Wei Yang and Giuseppe Durisi and Tobias Koch and Yury Polyanskiy},
title = {Diversity versus channel knowledge at finite block-length},
booktitle = {in Proc. IEEE Inf. Theory Workshop (ITW},
year = {2012},
pages = {577--581}
}
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Abstract
Abstract-We study the maximal achievable rate R * (n, ) for a given block-length n and block error probability over Rayleigh block-fading channels in the noncoherent setting and in the finite block-length regime. Our results show that for a given blocklength and error probability, R * (n, ) is not monotonic in the channel's coherence time, but there exists a rate maximizing coherence time that optimally trades between diversity and cost of estimating the channel.
