Cross-layer design of network-coded transmission with a delay constraint
2015 (English)In: Proceedings of IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2015, IEEE , 2015, 156-160 p.Conference paper (Refereed)
We investigate the cross-layer design of wireless networks where end-to-end data transmission is subject to delayconstraint and there is no end-to-end feedback. The transmission is coded by random linear network coding (RLNC) on packet level to recover from packet erasures and by forward error-correction coding (FEC) on bit level to combatchannel distortions. Based on the two-layer model developed by Adams et al. where the end-to-end coded transmission ischaracterized by a throughput-reliability function, we formulate the cross-layer design as a goodput optimizationproblem relax the integrality constraint. We show that for single-hop transmissions there exists a globally optimal operating point for the relaxed problem. For multiple-hop transmissions, the goodput function is component-wiseconcave with respect to the physical layer data rate over each individual link.
Place, publisher, year, edition, pages
IEEE , 2015. 156-160 p.
Wireless networks, coded transmission, delay constraint, cross-layer design, optimization
IdentifiersURN: urn:nbn:se:kth:diva-170772DOI: 10.1109/SPAWC.2015.7227019ISI: 000380547100032ScopusID: 2-s2.0-84953378665ISBN: 978-147991930-7OAI: oai:DiVA.org:kth-170772DiVA: diva2:839813
IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Stockholm, June 28-July 1, 2015.
FunderSwedish Research Council, 637-2013-473
QC 201603162015-07-062015-07-062016-09-05Bibliographically approved