Degree Type

Thesis

Date of Award

1-1-2005

Degree Name

Master of Science

Department

Computer Science

Major

Computer Science

Abstract

Prolonging network lifetime and retaining maximum communication fidelity are important to many applications of ad-hoc wireless sensor networks. Many energy-efficient communication protocols have been proposed to allow as many sensors as possible to be in idling. Typically, these techniques reduce energy consumption by minimizing the number of transmission packets and the size of each packet. However, recent researches have shown that energy consumed by the sensors in idling state is not negligible. In this research, we address this problem with a novel Backbone-based Communication Scheduling (BCS) technique. This scheme reduces the idling energy dissipation by keeping only a small set of sensors active at any time and leaving the rest of them in sleeping. The active sensors form a communication backbone that maintains the communication fidelity of the entire network. The backbone nodes are rotated with a highly efficient backbone election algorithm to balance the energy consumption of the sensors in the whole network. Our simulations results show that the proposed scheme can significantly extend the network lifetime without compromising the communication fidelity.

DOI

https://doi.org/10.31274/rtd-20200723-118

Copyright Owner

Fanghui Qing

Language

en

OCLC Number

65170671

File Format

application/pdf

File Size

41 pages

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