Performance evaluation of MAC transmission power control in wireless sensor networks.
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URI: http://hdl.handle.net/10317/420Share
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Egea López, EstebánKnowledge Area
Ingeniería TelemáticaPublication date
2007-04Publisher
Computer NetworksBibliographic Citation
VALES-ALONSO, J.,EGEA-LÓPEZ , E., MARTÍNEZ -SALA, A.,PAVÓN-MARIÑO, P., BUENO-DELGADO, M.V., GARCÍA-HARO, J. Performance evaluation of MAC tranamission power control in wireless sensor networks. Computer Networks, vol.51 (6): 1483-1498, April 2007.Keywords
Energy savingMAC
Abstract
In this paper we provide a method to analytically compute the energy saving provided by the use of Transmission
Power Control (TPC) at the MAC layer in Wireless Sensor Networks (WSN). We consider a classical TPC mechanism: data packets are transmitted with the minimum required power to achieve a given packet error probability, whereas the additional MAC control packets are transmitted with the nominal (maximum)
power. This scheme has been chosen because it does not modify the network topology, since control packet transmission range does not change. This property also allow us to compute analytically the expected energy savings. Besides, this type of TPC
can be implemented in the current sensor hardware, and can be applied directly to several MAC protocols already proposed for
WSN. The foundation of our analysis is the evaluation of L ratio, defined as the total energy consumed by the network using the
original MAC protocol divided by the total energy consumed if the TPC mechanism ...
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