Jump-stay based channel-hopping algorithm with guaranteed rendezvous for cognitive radio networks

Zhiyong Lin*, Hai LIU, Xiaowen CHU, Yiu Wing LEUNG

*Corresponding author for this work

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

162 Citations (Scopus)

Abstract

Cognitive radio networks (CRNs) have emerged as advanced and promising paradigm to exploit the existing wireless spectrum opportunistically. It is crucial for users in CRNs to search for neighbors via rendezvous process and thereby establish the communication links to exchange the information necessary for spectrum management and channel contention etc. This paper focuses on the design of algorithms for blind rendezvous, i.e., rendezvous without using any central controller and common control channel (CCC). We propose a jump-stay based channel-hopping (CH) algorithm for blind rendezvous. The basic idea is to generate CH sequence in rounds and each round consists of a jump-pattern and a stay-pattern. Users "jump" on available channels in the jump-pattern while "stay" on a specific channel in the stay-pattern. Compared with the existing CH algorithms, our algorithm achieves the following advances: i) guaranteed rendezvous without the need of time-synchronization; ii) applicability to rendezvous of multi-user and multi-hop scenarios. We derive the maximum time-to-rendezvous (TTR) and the upper-bound of expected TTR of our algorithm for both 2-user and multi-user scenarios (shown in Table I). Extensive simulations are further conducted to evaluate performance of our algorithm.

Original languageEnglish
Title of host publication2011 Proceedings IEEE INFOCOM
Pages2444-2452
Number of pages9
DOIs
Publication statusPublished - 2011
EventIEEE INFOCOM 2011 - Shanghai, China
Duration: 10 Apr 201115 Apr 2011

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X

Conference

ConferenceIEEE INFOCOM 2011
Country/TerritoryChina
CityShanghai
Period10/04/1115/04/11

Scopus Subject Areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

User-Defined Keywords

  • blind rendezvous
  • channel hopping
  • cognitive radio

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