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ThinkMind // ICNS 2013, The Ninth International Conference on Networking and Services // View article icns_2013_7_10_10064


A Power-Aware Real-Time Routing Mechanism for Wireless Sensor Networks

Authors:
Mohamed Aissani
Sofiane Bouznad
Badis Djamaa
Ibrahim Tsabet

Keywords: wireless sensor networks; real-time routing; energy-aware routing; node energy balancing

Abstract:
To optimally manage the limited energy of nodes without degrading efficiency of routing protocols in delivering real-time packets in wireless sensor networks, we propose in this paper an efficient power-aware real-time routing (PRR) mechanism. Firstly, it increases the network fluidity and saves more energy of nodes by removing early in network all useless data packets according to their residual deadline and expected end-to-end delay. Secondly, it reinforces the real-time behavior of the used routing protocol and preserves the network resources by selecting from the current-node queue the most urgent packet to be forwarded first. Finally, it saves energy of nodes without degrading the protocol efficiency in delivering real-time flows by combining adjusted transmission power of current node with relay speed of the forwarding candidate neighbors when selecting a next forwarder for the current packet. PRR is simple to implement and can be easily integrated in any geographic routing protocol. Associated with the well-know real-time routing protocol SPEED by using TinyOS, and evaluated in its embedded simulator TOSSIM, PRR achieved good performance in terms of network energy consumption, packet loss ratio, and node energy balancing.

Pages: 134 to 139

Copyright: Copyright (c) IARIA, 2013

Publication date: March 24, 2013

Published in: conference

ISSN: 2308-4006

ISBN: 978-1-61208-256-1

Location: Lisbon, Portugal

Dates: from March 24, 2013 to March 29, 2013

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