On Minimizing Energy Consumption of Duty-Cycled Wireless Sensors

This letter considers an energy consumption minimization problem of duty-cycled wireless sensors which are associated with a central controller, say an access point (AP), in a single-hoped synchronous wireless sensor network (WSN). The cost function we propose consists of the energy consumed during...

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Bibliographic Details
Published inIEEE communications letters Vol. 19; no. 10; pp. 1698 - 1701
Main Author Seo, Jun-Bae
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channels
Closed-form solutions
Cost function
duty-cycled sensor
Energy consumption
Exact solutions
Optimization
Packet transmission
Sensor systems
Sensors
sleep interval
Wireless communication
Wireless sensor networks
duty-cycled sensor
sleep interval
Wireless sensor networks (WSNs)
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Summary:This letter considers an energy consumption minimization problem of duty-cycled wireless sensors which are associated with a central controller, say an access point (AP), in a single-hoped synchronous wireless sensor network (WSN). The cost function we propose consists of the energy consumed during periodic wake-ups for wireless sensors to check a beacon frame from the AP and the one consumed for them to receive packets waiting in the AP's queue. This letter provides an optimal sleep interval as a closed form solution of minimizing energy consumption, which is expressed as mean packet inter-arrival times, mean packet transmission times over erroneous wireless channel, and power consumption at each wake-up and a packet transmission.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2015.2459698