Data Collection Strategy in Low Duty Cycle Wireless Sensor Networks with Mobile Sink - International Journal of Communications, Network and System Sciences

Data Collection Strategy in Low Duty Cycle Wireless Sensor Networks with Mobile Sink ()

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DOI: 10.4236/ijcns.2017.105B023 1,132 Downloads 2,766 Views Citations

Author(s)

Xiaofeng Tang^1,2, Li Xie^1,2

Affiliation(s)

¹State Key Laboratory of Novel Software Technology, Nanjing University, Nanjing, China.
²Department of Computer Science and Technology, Nanjing University, Nanjing, China.

ABSTRACT

The lifetime of wireless sensor networks can be improved by imposing low duty cycle, but doing so could not solve unbalanced energy consumption and will increase transmission latency. To avoid this, this paper gives a new method to collect data by mobile sink. The proper data collection route is selected according to the sink speed and buffer size of the sensors. The sensors only wake up when the sink approaches them. When certain sensors detect an emergency, the sink catches the message quickly and moves to the hotspot to decrease message relay in the network. The result of simulation by OPNET shows that this protocol can reduce transmission data in the network and prolong the network lifetime.

KEYWORDS

Wireless Sensor Networks, Low Duty Cycle, Mobile Sink

Share and Cite:

Tang, X. and Xie, L. (2017) Data Collection Strategy in Low Duty Cycle Wireless Sensor Networks with Mobile Sink. International Journal of Communications, Network and System Sciences, 10, 227-239. doi: 10.4236/ijcns.2017.105B023.

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