Comments on “Optimal utilization of a cognitive shared channel with a rechargeable primary source node”

Ahmed El Shafie, Ahmed Sultan Salem

Research output: Contribution to journalArticlepeer-review

Abstract

In a recent paper [1], the authors investigated the maximum stable throughput region of a network composed of a rechargeable primary user and a secondary user plugged to a reliable power supply. The authors studied the cases of an infinite and a finite energy queue at the primary transmitter. However, the results of the finite case are incorrect. We show that under the proposed energy queue model (a decoupled M/D/l queueing system with Bernoulli arrivals and the consumption of one energy packet per time slot), the energy queue capacity does not affect the stability region of the network.
Original languageEnglish (US)
Pages (from-to)265-266
Number of pages2
JournalJournal of Communications and Networks
Volume17
Issue number3
DOIs
StatePublished - Jun 2015

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