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ThinkMind // SENSORCOMM 2012 , The Sixth International Conference on Sensor Technologies and Applications // View article sensorcomm_2012_10_10_10077


A Study on the Effect of Packet Collisions on Battery Lifetime of 802.15.4 Motes

Authors:
Jose M. Cano-Garcia
Eduardo Casilari
Farah Adbib

Keywords: IEEE 802.15.4/ZigBee; Wireless Sensor Networks; CSMA/CA; Clear Channel Assessmen;,packet collision.

Abstract:
An empirical study of the power consumption of commercial IEEE 802.15.4/ZigBee motes is presented. The analysis investigates the current that is drained by an 802.15.4 based module when the radio channel is occupied or packet losses take place. For this purpose, we developed a simple testbed where problems in the radio medium are emulated in a controlled way. This is accomplished by artificially introducing in the protocol stack of the nodes a probability that a Clear Channel Assessment (CCA) failure or a packet collisions occurs. The results demonstrate the importance of CCA failures and especially packet collisions in determining the consumption of Wireless Sensor Networks with a moderate or high traffic load. Thus, problems related to the occupation of radio channel can easily more than halve the battery lifetime in networks with just some tens of nodes where data must be updated several times per second.

Pages: 209 to 214

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-207-3

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012

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