X-CHANT: A Diverse DSA based Architecture for Next-generation Challenged Networks

Vijay K. Shah, Simone Silvestri, Brian Luciano, Sajal K. Das

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper presents a novel network architecture, termed neXt-generation CHAllenged NeTwork (X-CHANT), for improving connectivity in rural environments. The underlying idea is to deploy diverse Dynamic Spectrum Access (d-DSA) radio devices on the public transportation vehicles, such as buses. This results in a d-DSA enabled delay-tolerant network in which the devices can operate in various (un)licensed bands (e.g., TV, LTE, ISM, CBRS), if available. Given the lack of research in efficient routing for such time-varying d-DSA enabled networks, we propose a novel diverse DSA aware routing (dDSAaR) protocol that jointly exploits various (un)licensed bands besides the time-varying yet sufficiently predictable mobility of public transportation vehicles. We compare X-CHANT, utilizing dDSAaR, to the conventional non-DSA/DSA architectures, utilizing a standard (single band) routing protocol (e.g., Epidemic). We use real bus mobility traces collected at the University of Massachusetts, Amherst campus. Results show that X-CHANT achieves better message delivery, negligible message overhead, and better energy expenditure, at the expense of a slight increase in delay. Never-theless, the delay improves with higher predictable mobility.

Original languageEnglish
Title of host publicationINFOCOM 2019 - IEEE Conference on Computer Communications
Pages586-594
Number of pages9
ISBN (Electronic)9781728105154
DOIs
StatePublished - Apr 2019
Event2019 IEEE Conference on Computer Communications, INFOCOM 2019 - Paris, France
Duration: Apr 29 2019May 2 2019

Publication series

NameProceedings - IEEE INFOCOM
Volume2019-April
ISSN (Print)0743-166X

Conference

Conference2019 IEEE Conference on Computer Communications, INFOCOM 2019
Country/TerritoryFrance
CityParis
Period4/29/195/2/19

Bibliographical note

Funding Information:
This research is partially supported by NSF grants CNS-1545037, CNS-1545050, and NATO grant G4936.

Funding Information:
Acknowledgement This research is partially supported by NSF grants CNS-1545037, CNS-1545050, and NATO grant G4936.

Publisher Copyright:
© 2019 IEEE.

Keywords

  • Challenged networks
  • Dynamic spectrum access
  • Rural connectivity
  • Space-time-band graph

ASJC Scopus subject areas

  • Computer Science (all)
  • Electrical and Electronic Engineering

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