Modulation and sleeping strategies for wireless sensor networks

Fadel F. Digham, Georgios B. Giannakis

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

1 Scopus citations

Abstract

Motivated by the recent and rapidly increasing interest in energy-saving schemes, this paper presents a novel PHY/MAC layer design for wireless sensor networks (WSNs). Capitalizing on the observed rare-event feature of most WSNs, we first design an energy-efficient ternary modulation scheme wherein the modulated symbols can classify (or color) the state of the underlying phenomenon as green, yellow or red. Introducing this new notion of a yellow message (that lies between the binary values represented by green and red) results in great flexibility and energy savings when designing a MAC sleeping scheduler (turning nodes on-and-off). The proposed sleeping protocol enjoys low energy consumption and respects a latency constraint by efficiently using the time-division- multiple-access technique along with the ternary modulation scheme. Numerical results illuminate the energy savings provided by the proposed schemes and quantify the energy-latency tradeoffs.

Original languageEnglish (US)
Title of host publicationMilitary Communications Conference 2006, MILCOM 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)1424406188, 9781424406180
DOIs
StatePublished - Jan 1 2006
EventMilitary Communications Conference 2006, MILCOM 2006 - Washington, D.C., United States
Duration: Oct 23 2006Oct 25 2006

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

OtherMilitary Communications Conference 2006, MILCOM 2006
Country/TerritoryUnited States
CityWashington, D.C.
Period10/23/0610/25/06

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