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dc.contributor.authorLagen, Sandra
dc.contributor.authorAgustín de Dios, Adrián
dc.contributor.authorVidal Manzano, José
dc.contributor.authorGarcía Mateos, Jorge
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationLagen, S., Agustin, A., Vidal, J., Garcia, J. Performance analysis of feedback-free collision resolution NDMA protocol. "EURASIP Journal on Wireless Communications and Networking", 1 Desembre 2018, vol. 2018, núm. 45, p. 1-18.
dc.description.abstractTo support communications of a large number of deployed devices while guaranteeing limited signaling load, low energy consumption, and high reliability, future cellular systems require efficient random access protocols. However, how to address the collision resolution at the receiver is still the main bottleneck of these protocols. The network-assisted diversity multiple access (NDMA) protocol solves the issue and attains the highest potential throughput at the cost of keeping devices active to acquire feedback and repeating transmissions until successful decoding. In contrast, another potential approach is the feedback-free NDMA (FF-NDMA) protocol, in which devices do repeat packets in a pre-defined number of consecutive time slots without waiting for feedback associated with repetitions. Here, we investigate the FF-NDMA protocol from a cellular network perspective in order to elucidate under what circumstances this scheme is more energy efficient than NDMA. We characterize analytically the FF-NDMA protocol along with the multipacket reception model and a finite Markov chain. Analytic expressions for throughput, delay, capture probability, energy, and energy efficiency are derived. Then, clues for system design are established according to the different trade-offs studied. Simulation results show that FF-NDMA is more energy efficient than classical NDMA and HARQ-NDMA at low signal-to-noise ratio (SNR) and at medium SNR when the load increases.
dc.format.extent18 p.
dc.rightsAttribution 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Protocols de comunicació
dc.subject.lcshEnergy consumption
dc.subject.lcshComputer network protocols
dc.subject.otherSlotted random access
dc.subject.otherPacket repetition
dc.subject.otherMultipacket reception
dc.subject.otherFeedback-free NDMA
dc.subject.otherEnergy efficiency
dc.titlePerformance analysis of feedback-free collision resolution NDMA protocol
dc.subject.lemacEnergia -- Consum
dc.subject.lemacProtocols de xarxes d'ordinadors
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorLagen, S., Agustin, A., Vidal, J., Garcia, J.
upcommons.citation.publicationNameEURASIP Journal on Wireless Communications and Networking

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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution 3.0 Spain