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Maximum Throughput of a Cooperative Energy Harvesting Cognitive Radio User

Author(s): Shafie, Ahmed El; Khattab, Tamer; Poor, H Vincent

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dc.contributor.authorShafie, Ahmed El-
dc.contributor.authorKhattab, Tamer-
dc.contributor.authorPoor, H Vincent-
dc.date.accessioned2024-01-11T15:20:36Z-
dc.date.available2024-01-11T15:20:36Z-
dc.date.issued2014en_US
dc.identifier.citationShafie, Ahmed El, Khattab, Tamer, Poor, H Vincent. (2014). Maximum Throughput of a Cooperative Energy Harvesting Cognitive Radio Useren_US
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1804xk0f-
dc.description.abstractIn this paper, we investigate the maximum throughput of a saturated rechargeable secondary user (SU) sharing the spectrum with a primary user (PU). The SU harvests energy packets (tokens) from the environment with a certain harvesting rate. All transmitters are assumed to have data buffers to store the incoming data packets. In addition to its own traffic buffer, the SU has a buffer for storing the admitted primary packets for relaying; and a buffer for storing the energy tokens harvested from the environment. We propose a new cooperative cognitive relaying protocol that allows the SU to relay a fraction of the undelivered primary packets. We consider an interference channel model (or a multipacket reception (MPR) channel model), where concurrent transmissions can survive from interference with certain probability characterized by the complement of channel outages. The proposed protocol exploits the primary queue burstiness and receivers' MPR capability. In addition, it efficiently expends the secondary energy tokens under the objective of secondary throughput maximization. Our numerical results show the benefits of cooperation, receivers' MPR capability, and secondary energy queue arrival rate on the system performance from a network layer standpoint.en_US
dc.language.isoen_USen_US
dc.rightsAuthor's manuscripten_US
dc.titleMaximum Throughput of a Cooperative Energy Harvesting Cognitive Radio Useren_US
dc.typeJournal Articleen_US
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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