PriorityCast: Efficient and time-critical decision making in first responder ad-hoc networks

Vartika Bhandari, Indranil Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

First responders equipped with PDAs in disaster recovery scenarios may need to make decisions that select the best out of multiple options. Each of these options may originate from different parts of the network (e.g., risk assessment of various entrances to a collapsed building). Yet the highest priority option needs to be spread to all nodes within a time deadline and in an efficient manner, i.e., by preventing lower priority options from spreading too far. We define this problem as PriorityCast, and study a wide range of possible solutions. The emphasis is on solutions that are scalable, and resilient to unreliability and unpredictability. Our basic scheme, called Flood and Suppress, suppresses lower priority options from being forwarded by a node that has seen other higher priority options. We then augment this basic scheme using probabilistic approaches, background gossiping techniques, and delayed propagation. We quantify the impact of using various combinations of the mentioned approaches, by presenting mathematical analysis for the Flood and Suppress protocol, and evaluating a suite of composable PriorityCast protocols via simulations. The results provide insight into the feasibility and scalability of this class of solutions. While the focus of this paper is on the PriorityCast problem, these solutions are also relevant as potential building blocks for other distributed operations in ad-hoc networks.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Mobile Ad Hoc and Sensor Sysetems, MASS
PublisherIEEE Computer Society
Pages246-255
Number of pages10
ISBN (Print)1424405076, 9781424405077
DOIs
StatePublished - Jan 1 2006
Event2006 IEEE International Conference on Mobile Ad Hoc and Sensor Sysetems, MASS - Vancouver, BC, Canada
Duration: Oct 9 2006Oct 12 2006

Publication series

Name2006 IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS
Volume1

Other

Other2006 IEEE International Conference on Mobile Ad Hoc and Sensor Sysetems, MASS
CountryCanada
CityVancouver, BC
Period10/9/0610/12/06

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Fingerprint Dive into the research topics of 'PriorityCast: Efficient and time-critical decision making in first responder ad-hoc networks'. Together they form a unique fingerprint.

  • Cite this

    Bhandari, V., & Gupta, I. (2006). PriorityCast: Efficient and time-critical decision making in first responder ad-hoc networks. In 2006 IEEE International Conference on Mobile Ad Hoc and Sensor Sysetems, MASS (pp. 246-255). [4053909] (2006 IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS; Vol. 1). IEEE Computer Society. https://doi.org/10.1109/MOBHOC.2006.278563