Abstract
Wireless Sensor Networks, especially supporting for surveillance service, are one of the core properties of network-centric warfare(NCW) that is a key factor of victory in future battlefields. Such a tactical surveillance sensor network must be designed not just for energy efficiency but for real-time requirements of emergency data transmission towards a control center. This paper proposes efficient clustering-based methods for supporting mobile sinks so that the network lifetime can be extended while emergency data can be served as well. We analyze the performance of the proposed scheme and compare it with other existing schemes through simulation via Qualnet 5.0.Keywords : Surveillance Sensor Networks(감시정찰 센서 네트워크), Energy Efficiency(에너지 효율성), Mobile Sink(이동 싱크), Clustering(클러스터링), Data Gathering(데이터 수집)
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