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An Energy-Efcient Mobile-Sink Path-Finding Strategy for UAV WSNs

Computers, Materials & Continua 2021年第6期67卷 3419-3432页

作者： Lyk Yin Tan Hock Guan Goh Soung-Yue Liew Shen Khang Teoh Department of Computer and Communication Technology Faculty of Information and Communication TechnologyUniversiti Tunku Abdul RahmanPerak31900Malaysia

data collection using a mobile sink in a Wireless Sensor Network(WSN)has received much attention in recent years owing to its potential to reduce the energy consumption of sensor nodes and thus enhancing the lifetime of the ***,a critical issue of this approach is the latency of data to reach the base *** many data collection algorithms have been introduced in the literature to reduce delays in data delivery,their performances are affected by the ight trajectory taken by the mobile sink,which might not be optimized *** paper proposes a new path-nding strategy,called Energy-efciency Path-nding Strategy(EPS)in the Air-Ground Collaborative Wireless Sensor Network(AGCWSN).The proposed approach is able to greatly enhance the efciency of data *** performance of the proposed strategy is simulated and compared with the existing strategies over several *** simulation results show that the mobile sink with EPS can collects data with lower data delivery delay as compared to other existing *** number of data retransmissions between sensor nodes and mobile sink in EPS is also the lowest in EPS among several existing *** data delivery delay is 66%and 120%lower than Rest Center Tractor Scanning(RCTS)and Non-stop Center Tractor Scanning(NCTS)in irregular and grid topology *** data delivery delay is 62%lower than Two Row Scanning(TRS)in grid topology and 120%lower than RkM in irregular *** packet loss of EPS-2 is 1.3%lower than RkM.

关键词： Wireless network mobile sink efcient path data colle

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