Cognitive multihop networks in spectrum sharing environment with multiple licensed users

Kyeong Jin Kim, Trung Q. Duong, Theodoros A. Tsiftsis, Vo Nguyen Quoc Bao

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

14 Citations (Scopus)

Abstract

Multihop network has been considered as a breakthrough frontier to enhance the coverage of wireless network. Spectrum-sharing is an efficient technique to enhance the utilization of the limited radio frequency bandwidth. In this paper, we therefore consider the extension of multihop network to cognitive radio networks with the spectrum sharing approach. In particular, we investigate the cognitive multihop networks in the presence of multiple licensed transmitters and receivers. Under the stringent power constraint imposed by the licensed users, we derive the closed-form and asymptotic expressions for the outage probability over Nakagami-m fading channels. The tractable closed-form expressions reveal the impact of important network parameters such as the fading severity parameters of the unlicensed network, the number of licensed users, the peak interference power imposed by the licensed receivers, the interference power from licensed transmitters. A significant observation corroborated by our study shows that the cognitive multihop networks benefit both cognitive radio and multihop networks for improving the coverage extension and frequency spectrum utilization.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications, ICC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2869-2873
Number of pages5
ISBN (Print)9781467331227
DOIs
Publication statusPublished - Jan 1 2013
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: Jun 9 2013Jun 13 2013

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Other

Other2013 IEEE International Conference on Communications, ICC 2013
CountryHungary
CityBudapest
Period6/9/136/13/13

Keywords

  • Multihop network cognitive relay network
  • Nakagami-m fading
  • coverage extension
  • outage probability
  • peak interference power

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Cognitive multihop networks in spectrum sharing environment with multiple licensed users'. Together they form a unique fingerprint.

Cite this