An empirical study of data collection protocols for wireless sensor networks
Proceedings of the workshop on Real-world wireless sensor networks
secFleck: A Public Key Technology Platform for Wireless Sensor Networks
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
NoSE: efficient maintenance and initialization of wireless sensor networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
WWIC'08 Proceedings of the 6th international conference on Wired/wireless internet communications
Toward trusted wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Computers and Electronics in Agriculture
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This paper investigates a wireless sensor network deployment--monitoring water quality, e.g. salinity and the level of the underground water table -- in a remote tropical area of northern Australia. Our goal is to collect real time water quality measurements together with the amount of water being pumped out in the area, and investigate the impacts of current irrigation practice on the environments, in particular underground water salination. This is a challenging task featuring wide geographic area coverage (mean transmission range between nodes is more than 800 meters), highly variable radio propagations, high end-to-end packet delivery rate requirements, and hostile deployment environments. We have designed, implemented and deployed a sensor network system, which has been collecting water quality and flow measurements, e.g., water flow rate and water flow ticks for over one month. The preliminary results show that sensor networks are a promising solution to deploying a sustainable irrigation system, e.g., maximizing the amount of water pumped out from an area with minimum impact on water quality.