A short-term throughput measure for communications with ARQ protocols

Anastasios Giovanidis, Gerhard Wunder, Holger Boche

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The renewal-reward theorem has been widely used in the literature to provide the expected throughput of ARQ systems when the inter-arrival intervals between consecutive message acknowledgements (ACKs) are iid random variables. In cases however when the channel error probability may be allowed to vary with time the above approach cannot accurately estimate the desired throughput time-average. For such scenarios we propose a 'short-term' measure for the expected throughput of ARQ systems up to some predefined number r of received ACKs and explicitly show that it converges asymptotically to the 'long-term' renewal-reward result when r →∞. A Maximum Zero-outage short-term Throughput (MZTs-t) metric is further introduced. Its value is shown to be greater than the respective value (MZTl-t) for the 'longterm' case.We conclude that use of the renewal-reward theorem in cases of varying error probabilities may underestimate the maximum possible transmission rate and the short-term measure is more appropriate.

Original languageEnglish
Title of host publication7th International ITG Conference on Source and Channel Coding, SCC 2008
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783800730773
StatePublished - 2008
Externally publishedYes
Event7th International ITG Conference on Source and Channel Coding, SCC 2008 - Ulm, Germany
Duration: 14 Jan 200816 Jan 2008

Publication series

Name7th International ITG Conference on Source and Channel Coding, SCC 2008

Conference

Conference7th International ITG Conference on Source and Channel Coding, SCC 2008
Country/TerritoryGermany
CityUlm
Period14/01/0816/01/08

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