Name
Abstract | ||
|---|---|---|
Energy harvesting sensor (EHS) nodes provide an attractive and green solution to the problem of limited lifetime of wireless sensor networks (WSNs). Unlike a conventional node that uses a non-rechargeable battery and dies once it runs out of energy, an EHS node can harvest energy from the environment and replenish its rechargeable battery. We consider hybrid WSNs that comprise of both EHS and conventional nodes; these arise when legacy WSNs are upgraded or due to EHS deployment cost issues. We compare conventional and hybrid WSNs on the basis of a new and insightful performance metric called k-outage duration, which captures the inability of the nodes to transmit data either due to lack of sufficient battery energy or wireless fading. The metric overcomes the problem of defining lifetime in networks with EHS nodes, which never die but are occasionally unable to transmit due to lack of sufficient battery energy. It also accounts for the effect of wireless channel fading on the ability of the WSN to transmit data. We develop two novel, tight, and computationally simple bounds for evaluating the k-outage duration. Our results show that increasing the number of EHS nodes has a markedly different effect on the k-outage duration than increasing the number of conventional nodes. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/WCNC.2013.6555259 | Wireless Communications and Networking Conference |
Keywords | Field | DocType |
energy harvesting,sensor placement,telecommunication network reliability,telecommunication power supplies,wireless sensor networks,EHS deployment cost,EHS nodes,battery energy,energy harvesting sensor nodes,hybrid WSN,hybrid energy harvesting wireless systems,k-outage duration,network lifetime,nonrechargeable battery,rechargeable battery,wireless channel fading effect,wireless fading,wireless sensor networks | Key distribution in wireless sensor networks,Wireless,Fading,Computer science,Performance metric,Energy harvesting,Computer network,Mobile wireless sensor network,Battery (electricity),Wireless sensor network | Journal |
Volume | Issue | ISSN |
13 | 9 | 1525-3511 E-ISBN : 978-1-4673-5937-5 |
ISBN | Citations | PageRank |
978-1-4673-5937-5 | 1 | 0.39 |
References | Authors | |
28 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shilpa Rao | 1 | 2 | 1.11 |
| Neelesh B. Mehta | 2 | 979 | 82.27 |