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Efficient ARQ retransmission schemes for two-way relay networks
KTH, School of Electrical Engineering (EES), Signal Processing.
2011 (English)In: Journal of Communications Software and Systems, ISSN 1845-6421, Vol. 7, no 1, 9-15 p.Article in journal (Refereed) Published
Abstract [en]

In this paper1, we investigate different practical automatic repeat request (ARQ) retransmission protocols for twoway wireless relay networks based on network coding (NC). The idea of NC is applied to increase the achievable throughput for the exchange of information between two terminals through one relay. Using NC, throughput efficiency is significantly improved due to the reduction of the number of retransmissions. Particularly, two improved NC-based ARQ schemes are designed based on go-back-N and selective-repeat (SR) protocols. The analysis of throughput efficiency is then carried out to find the best retransmission strategy for different scenarios. It is shown that the combination of improved NC-based SR ARQ scheme in the broadcast phase and the traditional SR ARQ scheme in the multiple access phase achieves the highest throughput efficiency compared to the other combinations of ARQ schemes. Finally, simulation results are provided to verify the theoretical analysis.

Place, publisher, year, edition, pages
2011. Vol. 7, no 1, 9-15 p.
Keyword [en]
ARQ protocol, Network coding, Two-way relay network
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-151234Scopus ID: 2-s2.0-79958840208OAI: oai:DiVA.org:kth-151234DiVA: diva2:747344
Note

QC 20140916

Available from: 2014-09-16 Created: 2014-09-15 Last updated: 2014-09-16Bibliographically approved

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