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An energy efficient wakeup schedule and power management algorithm for wireless sensor networks

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2 Author(s)
L. Sherly Puspha Annabel ; Department of Computer Applications, St. Joseph's College of Engineering, Chennai, India ; K. Murugan

The sensor network's lifetime depends mainly on the sensor node's battery power. In many of the various power saving protocols the sensor nodes will be put into sleep state when there is no transmission. These protocols do not change the awake and sleep time of the node according to its traffic load. This periodic and regular sleep and awake method of these protocols cause high latency and high energy consumption. If a host is not involved in power management it will be allowed to sleep. Therefore, to efficiently manage a sensor node's energy, there should be a power saving mechanism which also guarantees successful transmission. The sensor nodes have to wake up based on the packets that are pending in the buffer. A homogenous wakeup schedule and power management scheme is proposed to reduce the energy consumed in idle state for wireless sensor networks. This scheme consists of two algorithms namely power management and wakeup schedule algorithm. In wake up schedule algorithm each sensor node selects its own wake up time intervals based on its pending packets. In power management algorithm, an efficient power management scheme is introduced that facilitates effective communication while saving considerable amount of energy.

Published in:

Recent Trends In Information Technology (ICRTIT), 2012 International Conference on

Date of Conference:

19-21 April 2012