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 language | English |
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Title of host publication | INFOCOM 2019 - IEEE Conference on Computer Communications |
Pages | 586-594 |
Number of pages | 9 |
ISBN (Electronic) | 9781728105154 |
DOIs | |
State | Published - Apr 2019 |
Event | 2019 IEEE Conference on Computer Communications, INFOCOM 2019 - Paris, France Duration: Apr 29 2019 → May 2 2019 |
Publication series
Name | Proceedings - IEEE INFOCOM |
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Volume | 2019-April |
ISSN (Print) | 0743-166X |
Conference
Conference | 2019 IEEE Conference on Computer Communications, INFOCOM 2019 |
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Country/Territory | France |
City | Paris |
Period | 4/29/19 → 5/2/19 |
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