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Wake-up radio WuR system is oftenpresented as the best candidate for replacing traditional duty cycled MediumAccess Control MAC protocols in Wireless Sensor Networks WSNs. The DoubleRadio DoRa protocol is a new MAC protocol for in-band WuR system withaddressing capabilities. While the DoRa protocol improves the WSNs energyefficiency, it still suffers from an overhearing problem when the WuR system isvery often requested. The WuR wastes a noticeable amount of energy whenoverhearing to wake-up demand intended to other nodes, but it is neithermeasured nor solved in other works. In this paper, an adaptive duty-cycled DoRaDC-DoRa is then proposed to solve the overhearing problem. The primaryconcept of the work is to enable the WuR functionality before the node isaddressed and to disable the WuR after the node sent data. Extensivesimulations under OMNeT++ using real input parameters are then performed toshow the significant energy-savings through the two protocols and the nearlysuppression of overhearing with DC-DoRa. In fact, the mean power consumption isthree-order below using the DoRa protocol compared to traditional MACprotocols. While overhearing can represent up to 93% of the WuR energyconsumption with the DoRa protocol, it is reduced to only 1% with the DC-DoRaprotocol.

KEYWORDS

Wireless Sensor Networks, Wake-Up Radio, MAC Protocol, Energy Efficiency, Duty Cycling

Cite this paper

Lebreton, J. , Kandukuri, S. , Murad, N. and Lorion, R. 2016 An Energy-Efficient Duty-Cycled Wake-Up Radio Protocol for Avoiding Overhearing in Wireless Sensor Networks. Wireless Sensor Network, 8, 176-190. doi: 10.4236-wsn.2016.88015.





Author: Jean Mickael Lebreton, Somasekhar Kandukuri, Nour Murad, Richard Lorion

Source: http://www.scirp.org/



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