International Workshop on Collaobration and Cognition in Next Generation Networks

Research Article

Employing Sink Mobility to Extend the Lifetime of Wireless Sensor Networks

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  • @INPROCEEDINGS{10.1007/978-3-642-03354-4_26,
        author={Viplavi Donepudi and Mohamed Younis},
        title={Employing Sink Mobility to Extend the Lifetime of Wireless Sensor Networks},
        proceedings={International Workshop on Collaobration and Cognition in Next Generation Networks},
        proceedings_a={CONGN},
        year={2012},
        month={5},
        keywords={Wireless Sensor Networks Energy Efficiency Node Mobility Network Longevity},
        doi={10.1007/978-3-642-03354-4_26}
    }
    
  • Viplavi Donepudi
    Mohamed Younis
    Year: 2012
    Employing Sink Mobility to Extend the Lifetime of Wireless Sensor Networks
    CONGN
    Springer
    DOI: 10.1007/978-3-642-03354-4_26
Viplavi Donepudi1,*, Mohamed Younis1,*
  • 1: University of Maryland Baltimore County
*Contact email: donevip1@umbc.edu, younis@umbc.edu

Abstract

Wireless sensor networks (WSNs) often employs miniaturized battery-operated nodes. Since in most setups it is infeasible or impractical to replace the onboard energy supply, the design and operation of WSNs are subject to a great deal of optimization. Among the most popular strategies is the pursuance of multi-hop routes for forwarding collected sensor data to a gateway. In that case, the gateway becomes a sink for all traffic and the close-by nodes relay lots of packets and deplete their battery rather quickly. In this paper, the mobility of the gateway is exploited to balance the load on the sensors and avoid the overload on the nodes in the proximity of the gateway. A novel approach for defining a travel path for the sink is presented. The proposed approach is validated in a simulated environment and is shown to significantly boost the network lifetime.