Simulation and Improved Channel Assignment by Simulated Annealing of a Wireless Mesh Network using Dynamic Spectrum Access

Natasha Zlobinsky, David L. Johnson, Amit K. Mishra, Albert A. Lysko

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

Abstract

This work tackles a new angle to the Channel Assignment (CA) problem, which has otherwise been fairly widely studied for allocating channels optimally to access points and ad-hoc network nodes. Wireless Mesh Networks (WMNs) using Dynamic Spectrum Access (DSA), such as Television White Spaces (TVWS), create new avenues for research due to the additional constraints and complexity. For the production of controlled and repeatable experiments and design of CA algorithms without the drawbacks and difficulties of real hardware, we use Network Simulator 3 (ns3). In this paper we address the construction of an experimental setup in ns3 for evaluating CA algorithms in a DSA WMN environment. Additionally, we propose a solution to the CA problem in this scenario using Simulated Annealing. We simulate TVWS device operation by adding TVWS channels (this can be extended to include any new DSA bands), provide a framework for multi-radio multi-channel WMN experiments, and present and analyse the performance of a CA algorithm. Results show that the proposed algorithm provides channel assignments with much improved performance (120%-755% better) over random channel assignments.

Original languageEnglish
Title of host publicationMobiWac '21
Subtitle of host publicationProceedings of the 19th ACM International Symposium on Mobility Management and Wireless Access
PublisherAssociation for Computing Machinery, Inc
Pages157-166
Number of pages10
ISBN (Electronic)9781450390798
DOIs
Publication statusPublished - 22 Nov 2021
Externally publishedYes
Event19th ACM International Symposium on Mobility Management and Wireless Access, MobiWac 2021 - Virtual, Online, Spain
Duration: 22 Nov 202126 Nov 2021

Publication series

NameMobiWac 2021 - Proceedings of the 19th ACM International Symposium on Mobility Management and Wireless Access

Conference

Conference19th ACM International Symposium on Mobility Management and Wireless Access, MobiWac 2021
Country/TerritorySpain
CityVirtual, Online
Period22 Nov 202126 Nov 2021

Keywords

  • channel assignment
  • cognitive radio
  • DSA
  • modeling
  • network simulator 3
  • NS3
  • optimisation
  • simulated annealing
  • simulation
  • TVWS
  • unlicensed spectrum
  • wireless mesh networks
  • WMN

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