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PCSMAC: a power controlled sensor-MAC protocol for wireless sensor networks

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2 Author(s)
P. C. Nar ; Istanbul Tech. Univ., Turkey ; E. Cayirci

In this paper a new power controlled contention-based MAC protocol is introduced for wireless sensor networks where sensor nodes can adjust their transmission power level on a per-frame basis. The main contribution of our work is to enable power controlled transmission of RTS, CTS, DATA and ACK frames while preserving the collision and overhearing avoidance properties of a MAC protocol where these frames are transmitted at the maximum power. Experimental results show that the power controlled sensor MAC protocol reduces the energy consumption by 30-99% comparing to the conventional sensor MAC protocol.

Published in:

Proceeedings of the Second European Workshop on Wireless Sensor Networks, 2005.

Date of Conference:

31 Jan.-2 Feb. 2005