Spectrum handoff for cognitive radio networks: Reactive-sensing or proactive-sensing?

Li-Chun Wang*, Chung Wei Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

103 Scopus citations

Abstract

In this paper, we will investigate the spectrum handoff schemes for the cognitive radio networks. Spectrum handoff occurs when the primary users appear and the secondary users are using this particular primary user's licensed channel. We compare two major types of spectrum handoff schemes. One is the reactive-sensing spectrum handoff, where the target channel for spectrum handoff is selected or sensed only after the spectrum handoff request is made. The other one is the proactive-sensing spectrum handoff, for which the target channel is predetermined. The advantage of the reactive spectrum handoff is the accuracy of the selected target channel, but pay the cost of sensing time. By contrast, the proactive spectrum handoff avoid the sensing time, but the pre-determined target channel may not be available. We will provide a Preemptive Resume Priority M/G/1 queueing network model to analyze in which condition that the reactive- or proactive-sensing spectrum handoff should be used dependent of sensing time.

Original languageEnglish
Title of host publication2008 IEEE International Performance Computing and Communications Conference, IPCCC 2008
Pages343-348
Number of pages6
DOIs
StatePublished - 1 Dec 2008
Event2008 IEEE International Performance Computing and Communications Conference, IPCCC 2008 - Austin, TX, United States
Duration: 7 Dec 20089 Dec 2008

Publication series

NameConference Proceedings of the IEEE International Performance, Computing, and Communications Conference

Conference

Conference2008 IEEE International Performance Computing and Communications Conference, IPCCC 2008
CountryUnited States
CityAustin, TX
Period7/12/089/12/08

Keywords

  • Cognitive radio
  • Preemption
  • Preemptive priority
  • Queueing theory
  • Spectrum handoff
  • Spectrum mobility
  • Transmission latency

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  • Cite this

    Wang, L-C., & Wang, C. W. (2008). Spectrum handoff for cognitive radio networks: Reactive-sensing or proactive-sensing? In 2008 IEEE International Performance Computing and Communications Conference, IPCCC 2008 (pp. 343-348). [4745128] (Conference Proceedings of the IEEE International Performance, Computing, and Communications Conference). https://doi.org/10.1109/PCCC.2008.4745128