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Revisiting the performance of the modular clock algorithm for distributed blind rendezvous in cognitive radio networks

  • School of Computer Science
  • Carleton University
  • Universidad Tecnológica Metropolitana

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We reexamine the modular clock algorithm for distributed blind rendezvous in cognitive radio networks. It proceeds in rounds. Each round consists of scanning twice a block of generated channels. The modular clock algorithm inspired the creation of the jump-stay rendezvous algorithm. It augments the modular clock with a stay-on-one-channel pattern. This enhancement guarantees rendezvous in one round. We make the observation that as the number of channels increases, the significance of the stay-on-one-channel pattern decreases. We revisit the performance analysis of the two-user symmetric case of the modular clock algorithm. We compare its performance with a random and the jump-stay rendezvous algorithms. Let m be the number of channels. Let p be the smallest prime number greater than m. The expected time-to-rendezvous of the random and jump-stay algorithms are m and p, respectively. Theis et al.'s analysis of the modular clock algorithm concludes a maximum expected time-to-rendezvous slightly larger than 2p time slots. Our analysis shows that the expected time-to-rendezvous of the modular clock algorithm is no more than 3p/4 time slots.

Original languageEnglish
Title of host publicationAd-hoc, Mobile, and Wireless Networks - 13th International Conference, ADHOC-NOW 2014, Proceedings
PublisherSpringer Verlag
Pages197-208
Number of pages12
ISBN (Print)9783319074245
DOIs
Publication statusPublished - 1 Jan 2014
Event13th International Conference on Ad-Hoc Networks and Wireless, ADHOC-NOW 2014 - Benidorm, Spain
Duration: 22 Jun 2014 → 27 Jun 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8487 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference13th International Conference on Ad-Hoc Networks and Wireless, ADHOC-NOW 2014
Country/TerritorySpain
CityBenidorm
Period22/06/14 → 27/06/14

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