Title
Active time scheduling for rechargeable sensor networks
Abstract
Recent progress in energy harvesting technologies made it possible to build sensor networks with rechargeable nodes which target an indefinitely long operation. In these networks, the goal of energy management is to allocate the available energy such that the important performance metrics, such as the number of detected threats, are maximized. As the harvested energy is not sufficient for continuous operation, the scheduling of the active and inactive time is one of the main components of energy management. The active time scheduling protocols need to maintain the energy equilibrium of the nodes, while considering the uncertainties of the energy income, which is strongly influenced by the weather, and the energy expenditures, which are dependent on the behavior of the targets. In this paper, we describe and experimentally compare three active time scheduling protocols: (a) static active time, (b) dynamic active time based on a multi-parameter heuristic and (c) utility-based uniform sensing. We show that protocols which take into consideration the probabilistic models of the energy income and expenditure and can dynamically adapt to changes in the environment, can provide a significant performance advantage.
Year
DOI
Venue
2010
10.1016/j.comnet.2009.08.004
Computer Networks
Keywords
DocType
Volume
Rechargeable,Energy harvesting,Sensor network
Journal
54
Issue
ISSN
Citations 
4
Computer Networks
14
PageRank 
References 
Authors
0.99
20
3
Name
Order
Citations
PageRank
Volodymyr Pryyma1281.95
Damla Turgut2112787.39
Ladislau Bölöni333542.82