Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Comments on "Optimal Utilization of a Cognitive Shared Channel with a Rechargeable Primary Source Node"

  • Received : 2013.11.10
  • Accepted : 2014.09.03
  • Published : 2015.06.30
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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/1 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.

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References

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