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Stability and Delay of Network-Diversity Multiple Access with Backlog Retransmission Control

dc.contributor.authorRobles, Ramano
dc.date.accessioned2017-06-02T13:41:59Z
dc.date.available2017-06-02T13:41:59Z
dc.date.issued2017
dc.descriptionThe Second International Conference on Advances in Signal, Image and Video Processing - from Sensing to Applications (SIGNAL 2017). 21 to 25, May, 2017, 5Gsignalwave. Barcelona, Spain.pt_PT
dc.description.abstractThis paper proposes two strategies for retransmission control of backlog traffic in the family of algorithms known as Network Diversity Multiple Access (NDMA). This type of algorithm has been shown to achieve (in ideal conditions) the following aspects: 1) collision-free performance for contentionbased traffic, 2) low latency values, and 3) reduced feedback complexity. These features match the machine-type traffic, realtime, and dense object connectivity requirements in 5G. This makes NDMA a candidate for contention traffic support in 5G systems. However, existing analysis ignores the effects of backlog traffic generated by the imperfect detection conditions that arise in settings with finite Signal-to-Noise Ratio (SNR). This paper aims to partially fill this gap, by providing analytic expressions for the performance of symmetrical training-based NDMA protocols with two different types of backlog traffic retransmission schemes. In the first strategy, all terminals involved in an unsuccessful resolution period retransmit immediately in the subsequent resolution periods or epoch slots. This procedure is repeated continuously (persistent retransmission) by inducing the same collision event under different channel outcomes until all the contending signals are correctly detected and received. In the second retransmission strategy, the terminals in backlog state retransmit at a randomly selected time-slot with a probability that that is assumed (for simplicity) to match the transmission rate of the system. In both strategies, expressions are here obtained of the maximum stable throughput and the average delay experienced by any packet to be correctly received by the destination. This allows us to determine the capabilities of NDMA for achieving lowlatency, reduced feedback complexity, as well as highly stable and real-time throughout performance. The results shown here suggest that NDMA can achieve attractive low latency and high throughput figures mainly at high SNR values and moderate traffic loads.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/technologies7010022pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/9861
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationDependable Embedded Wireless Infrastructure
dc.relation.ispartofseriesSIGNAL;2017
dc.subjectMultiple Access in 5Gpt_PT
dc.subjectRetransmission Diversitypt_PT
dc.subjectSignal Processingpt_PT
dc.subjectMulti-User Detectionpt_PT
dc.subjectCross-layer Designpt_PT
dc.subjectRandom Accesspt_PT
dc.subjectMulti-Packet Receptionpt_PT
dc.titleStability and Delay of Network-Diversity Multiple Access with Backlog Retransmission Controlpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleDependable Embedded Wireless Infrastructure
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/621353/EU
oaire.citation.conferencePlaceBarcelona, Spainpt_PT
oaire.citation.titleThe Second International Conference on Advances in Signal, Image and Video Processing - from Sensing to Applications (SIGNAL 2017). 21 to 25, May, 2017, 5Gsignalwave.pt_PT
oaire.fundingStreamFP7
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isProjectOfPublication2e1261b4-4c7c-427a-adf2-e967004ce1b3
relation.isProjectOfPublication.latestForDiscovery2e1261b4-4c7c-427a-adf2-e967004ce1b3

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