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Enhancing CRDSA with Transmit Power Diversity for Machine-Type Communication

Alvi, Sheeraz; Durrani, Salman; Zhou, Xiangyun

Description

Contention resolution diversity slotted ALOHA (CRDSA) is a promising solution to meet the challenge of designing efficient random access in future wireless networks. In this work, we consider CRDSA with transmit power diversity where each packet copy from a device is transmitted at a randomly selected power level. This results in inter-slot received power diversity, which is exploited by employing a signal-to-interference-plus-noise ratio based successive interference cancellation (SIC)...[Show more]

dc.contributor.authorAlvi, Sheeraz
dc.contributor.authorDurrani, Salman
dc.contributor.authorZhou, Xiangyun
dc.date.accessioned2021-07-22T02:23:36Z
dc.identifier.issn0018-9545
dc.identifier.urihttp://hdl.handle.net/1885/241049
dc.description.abstractContention resolution diversity slotted ALOHA (CRDSA) is a promising solution to meet the challenge of designing efficient random access in future wireless networks. In this work, we consider CRDSA with transmit power diversity where each packet copy from a device is transmitted at a randomly selected power level. This results in inter-slot received power diversity, which is exploited by employing a signal-to-interference-plus-noise ratio based successive interference cancellation (SIC) receiver. Leveraging edge-weighted bipartite graph representation, we propose a novel graph-based message passing algorithm to model the SIC decoding. We derive an expression to characterise the recovery-error probability of the scheme. We also formulate and solve an optimization problem to determine the optimal transmit power distribution. The results show that by enhancing the capture effect, the optimal transmit power distribution leads to considerable performance improvement.
dc.description.sponsorshipThis work was supported by the Australian Research Councils Discovery Project Funding Scheme (Project number DP170100939).
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.rights© 2018 IEEE
dc.sourceIEEE Transactions on Vehicular Technology
dc.subjectRandom access
dc.subjectCRDSA
dc.subjectmachine-type communication
dc.subjectcapture effect
dc.subjectSIC
dc.titleEnhancing CRDSA with Transmit Power Diversity for Machine-Type Communication
dc.typeJournal article
local.description.notesAdded manually as didn't import from ARIES
local.identifier.citationvolume47
dcterms.dateAccepted2018-04-25
dc.date.issued2018-08-13
local.identifier.ariespublicationa383154xPUB9822
local.publisher.urlhttps://ieeexplore.ieee.org/
local.type.statusPublished Version
local.contributor.affiliationAlvi, Sheeraz, College of Engineering and Computer Science, ANU
local.contributor.affiliationDurrani, Salman, College of Engineering and Computer Science, ANU
local.contributor.affiliationZhou, Xiangyun (Sean), College of Engineering and Computer Science, ANU
local.description.embargo2099-12-31
dc.relationhttp://purl.org/au-research/grants/arc/DP170100939
local.bibliographicCitation.issue8
local.bibliographicCitation.startpage7790
local.bibliographicCitation.lastpage7794
local.identifier.doi10.1109/TVT.2018.2831926
CollectionsANU Research Publications

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