Simple solutions may still be best: on the selection of working channels in a channel‐hopping cognitive network1. Issue 6 (23rd July 2014)

• Record Type: Journal Article
• Authors: Mišić, Vojislav B.; Islam Khan, Mohammad Shahnoor; Rahman, Md. Mizanur; Khojasteh, Haleh; Mišić, Jelena
• Is Part Of: Wireless communications and mobile computing. Volume 15:Issue 6(2015)
• Page Start: 1026
• Page End: 1036
• Publication Date: 2014-07-23
• Subjects: Wireless communication systems -- Periodicals; Mobile communication systems -- Periodicals; 621.38205
• DOI: 10.1002/wcm.2497
• Languages: English
• ISSNs: 1530-8669

Abstract

<abstract abstract-type="main" id="wcm2497-abs-0001"> <title>Abstract</title> <p id="wcm2497-para-0006">Spectrum decision—that is, the selection of a channel for the next hop—is one of the most important factors that affect the performance of a channel‐hopping cognitive network. In this paper, we compare the performance of a number of channel selection algorithms through the probability of collisions with primary user transmissions. The results indicate that a simple histogram‐based selection algorithm performs the best, except in the somewhat unrealistic scenario where primary users are homogeneous with respect to mean period and mean duty cycle of their channel activity, in which case selecting the next‐hop channel among those that have most recently turned idle offers the best performance. Furthermore, histogram‐based selection is shown to be quite resilient to errors inherent to channel sensing and is thus a primary candidate for a wide range of applications of channel‐hopping cognitive networks. Copyright © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract>