Improved spectrum mobility using virtual reservation in collaborative cognitive radio networks

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Abstract

Cognitive radio technology would enable a set of secondary users (SU) to opportunistically use the spectrum licensed to a primary user (PU). On the appearance of this PU on a specific frequency band, any SU occupying this band should free it for PUs. Typically, SUs may collaborate to reduce the impact of cognitive users on the primary network and to improve the performance of the SUs. In this paper, we propose and analyze the performance of virtual reservation in collaborative cognitive networks. Virtual reservation is a novel link maintenance strategy that aims to maximize the throughput of the cognitive network through full spectrum utilization. Our performance evaluation shows significant improvements not only in the SUs blocking and forced termination probabilities but also in the throughput of cognitive users.

Original languageEnglish
Title of host publication2013 IEEE Symposium on Computers and Communications, ISCC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages476-482
Number of pages7
ISBN (Print)9781479937554
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event18th IEEE Symposium on Computers and Communications, ISCC 2013 - Split, Croatia
Duration: 7 Jul 201310 Jul 2013

Publication series

NameProceedings - IEEE Symposium on Computers and Communications
ISSN (Print)1530-1346

Conference

Conference18th IEEE Symposium on Computers and Communications, ISCC 2013
Country/TerritoryCroatia
CitySplit
Period7/07/1310/07/13

Keywords

  • Admission Control
  • Cognitive Radio Handoff
  • Collaborative Sensing
  • Link Maintenance
  • Real-time systems
  • Reservation

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