Cooperative rendezvous protocol for multiple user-pairs in cognitive radio networks

Lu Yu, Hai Liu, Yiu Wing LEUNG, Xiaowen CHU, Zhiyong Lin

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In cognitive radio networks, rendezvous is a fundamental operation by which cognitive users establish communication links. Most of existing works consider rendezvous of a pair of users. When multiple pairs of users are doing rendezvous, collisions are caused by the multiple user-pairs which significantly degrade the rendezvous performance, e.g., resulting in a long time-to-rendezvous. To address this problem, we propose a new protocol called Cooperative Rendezvous Protocol which exploits cooperation in the multiple user-pairs environment to speed up the rendezvous operation. Using this protocol, multiple user-pairs cooperate with each other to relay their channel availability information, so that they could avoid attempting rendezvous in unavailable channels. The proposed protocol serves as a general framework that can be applied in conjunction with any existing rendezvous algorithm for faster rendezvous. We theoretically derive an upper bound on the time-to-rendezvous when the proposed protocol is applied in conjunction with any rendezvous algorithm which generates channel hopping sequence based on the available channel set. In addition, we conduct extensive simulation and the results show that the proposed protocol can significantly reduce the time-to-rendezvous of the existing rendezvous algorithms by up to 80.86% in multiple user-pairs environment.

Original languageEnglish
Title of host publication2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781538617342
DOIs
Publication statusPublished - 8 Jun 2018
Event2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 - Barcelona, Spain
Duration: 15 Apr 201818 Apr 2018

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2018-April
ISSN (Print)1525-3511

Conference

Conference2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
Country/TerritorySpain
CityBarcelona
Period15/04/1818/04/18

Scopus Subject Areas

  • Engineering(all)

User-Defined Keywords

  • Channel hopping
  • Cognitive radio networks
  • Collision
  • Cooperative protocol

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