Reliability assessment of wireless sensor nodes with non-linear battery discharge

TitleReliability assessment of wireless sensor nodes with non-linear battery discharge
Publication TypeConference Proceedings
Year of Conference2010
AuthorsBruneo, D., S. Distefano, F. Longo, A. Puliafito, and M. Scarpa
Conference Name2010 IFIP Wireless Days, WD 2010
PublisherIEEE Computer Society
Conference LocationVenice, Italy, 20-22 October 2010
ISBN Number9781424492299
KeywordsAlgebra, Battery discharge, Continuous phase, Electric network synthesis, Energy consumption, Energy utilization, Kronecker algebra, Markov reward model, Reliability analysis, sensor networks, Sensor nodes, Telecommunication equipment, Wireless sensor, Wireless sensor networks

Wireless sensor networks are constituted of a large number of tiny sensor nodes randomly distributed over a geographical region. In order to reduce power consumption, nodes undergo cycles of active-sleep periods that reduce their ability to send/receive data. Aim of this paper is to analyze the reliability of a battery-powered sensor node with active-sleep cycles considering both linear and non linear discharge processes. The approach used in the evaluation is based on continuous phase type distributions and Kronecker algebra. The technique is thus applied to the evaluation of an example in order to demonstrate its effectiveness. The obtained results strongly encourage future work, figuring out possible application in wider network context with complex topology, redundant nodes, and unreliable links, due to the Kronecher algebra capabilities to manage the state space explosion problem. © 2010 IEEE.