Sensor Activity Scheduling Protocol for Lifetime prolongation in Wireless Sensor Networks

https://doi.org/10.24017/science.2017.3.12

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Authors

  • Wesam Hussein Dept. of Information Networks, University of Babylon, Babylon – Iraq
  • Ali Kadhum Idrees Dept. of Computer Science, University of Babylon, Babylon - Iraq

Abstract

In Wireless Sensor Network (WSN), the dense sensor nodes deployment in the sensing field can be exploited in conserving the energy of the whole network, where the data of these nodes can be highly correlated. Therefore, it is necessary to turn off the unnecessary nodes that sense similar sensor readings so as to reduce the redundant sensed readings and decrease the communication overhead thus extend the WSN lifetime. This article suggests a Sensor Activity Scheduling (SAS) protocol for lifetime improvement of WSNs. SAS works in a periodic way. It exploits the spatial correlation among sensed sensor data in order to produce the best sensor activities schedule in WSNs. SAS composed of three phases: data collection, decision-based optimization, and sensing. SAS measures the similarity degree among the sensed data that collected in the first phase. It makes a decision of which sensors stay active during the sensing phase in each period and put the other nodes into low power sleep whilst keeping a good accuracy level to the received data at the sink to conserve the power and enhance the lifetime of the WSN. Several experiments based on real sensed data and by using OMNeT++ simulator demonstrate that SAS can save energy and extend the WSN lifetime efficiently compared with the other methods.

Keywords:

WSNs, scheduling, optimization, energy saving, Metaheuristic, spatial correlation.

References

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Published

04-09-2017

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Section

Pure and Applied Science

How to Cite

[1]
W. Hussein and A. K. Idrees, “Sensor Activity Scheduling Protocol for Lifetime prolongation in Wireless Sensor Networks”, KJAR, vol. 2, no. 3, pp. 7–13, Sep. 2017, doi: 10.24017/science.2017.3.12.