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Optimizing Duty-Cycle for Delay and Energy Bound WSN Applications

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4 Author(s)
Kumar, P. ; Inst. of Comput. Sci., Freie Univ. Berlin, Berlin, Germany ; Güneş, M. ; Mushtaq, Q. ; Schiller, J.

Despite their limited resources, especially energy, wireless sensor networks (WSNs) are being accepted in many application areas. This makes them a challenging yet an appealing research area. Evidently, a lot of research work revolves around energy efficiency in order to prolong WSNs lifetime. A prominent amount of work suggests keeping radios of sensor nodes in low power sleep mode for most of the time. However, this duty-cycling results in increased network latency. Selection of an optimal duty-cycle is always challenging especially for applications where latency, along with energy consumption, plays an important role. This paper evaluates AREA-MAC for delay, energy, and packet delivery ratio factors for several duty-cycle values. AREA-MAC is a medium access control (MAC) protocol designed for realtime and energy-efficient WSN applications. Linear optimization is used to find the optimal value of duty-cycle in order to minimize delay and energy consumption and by keeping packet delivery ratio above a certain threshold.

Published in:

Advanced Information Networking and Applications Workshops (WAINA), 2010 IEEE 24th International Conference on

Date of Conference:

20-23 April 2010