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X-CHANT: A Diverse DSA based Architecture for Next-Generation Challenged Networks
IEEE INFOCOM 2019 -- IEEE Conference on Computer Communications
  • Vijay K. Shah
  • Simone Silvestri, Missouri University of Science and Technology
  • Brian Luciano
  • Sajal K. Das, Missouri University of Science and Technology
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.

Meeting Name
2019 IEEE Conference on Computer Communications, INFOCOM 2019 (2019: Apr. 29-May 2, Paris, France)
Department(s)
Computer Science
Research Center/Lab(s)
Intelligent Systems Center
Comments
This research is partially supported by NSF grants CNS-1545037, CNS-1545050, and NATO grant G4936.
Keywords and Phrases
  • Challenged networks,
  • Dynamic spectrum access,
  • Rural connectivity,
  • Space-time-band graph
International Standard Book Number (ISBN)
978-172810515-4
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2019 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
5-1-2019
Disciplines
Citation Information
Vijay K. Shah, Simone Silvestri, Brian Luciano and Sajal K. Das. "X-CHANT: A Diverse DSA based Architecture for Next-Generation Challenged Networks" IEEE INFOCOM 2019 -- IEEE Conference on Computer Communications (2019) p. 586 - 594 ISSN: 0743-166X
Available at: http://works.bepress.com/sajal-das/140/