Systematic construction of common channel hopping rendezvous strategies in cognitive radio networks

• Published in: EURASIP journal on wireless communications and networking Vol. 2015; no. 1; pp. 1 - 16
• Main Authors: Guerra, Erik Ortiz, Reguera, Vitalio Alfonso, Souza, Richard D, Fernández, Evelio G, Pellenz, Marcelo E
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 09.05.2015; Springer Nature B.V
• Subjects: Algorithms; Asymmetry; Channels; Cognitive radio; Communications Engineering; Engineering; Information Systems Applications (incl.Internet); Networks; Proposals; Rendezvous; Signal,Image and Speech Processing; Strategy; Blind rendezvous; Rendezvous diversity; Channel hopping sequences; Cognitive radio
• ISSN: 1687-1499; 1687-1472; 1687-1499
• DOI: 10.1186/s13638-015-0356-8

Cognitive radio networks (CRNs) have emerged as a promising paradigm that can solve the shortage of spectrum resources, providing the ability to adapt and opportunistically exploit the spectrum holes. The rendezvous process allows cognitive users to find a common channel and establish a communication link. In this paper, we focus on the design of fast blind rendezvous algorithms to guarantee that every node should be able to rendezvous in all common available channels. We follow a systematic approach by first proposing a role-based algorithm that ensures maximum rendezvous diversity and then extending it to a common strategy through the use of multiples radios. Both proposals guarantee rendezvous under symmetric and asymmetric models. Simulation results show that our proposals outperform other recently developed rendezvous protocols with similar approaches in terms of expected time to rendezvous and maximum time to rendezvous.