1 research outputs found
Data transmission reduction in wireless sensor network for spatial event detection
Wireless sensor networks have found many applications in detecting events such as
security threats, natural hazards, or technical malfunctions. An essential requirement for event
detection systems is the long lifetime of battery-powered sensor nodes. This paper introduces a
new method for prolonging the wireless sensor network’s lifetime by reducing data transmissions
between neighboring sensor nodes that cooperate in event detection. The proposed method allows
sensor nodes to decide whether they need to exchange sensor readings for correctly detecting events.
The sensor node takes into account the detection algorithm and verifies whether its current sensor
readings can impact the event detection performed by another node. The data are transmitted only
when they are found to be necessary for event detection. The proposed method was implemented in
a wireless sensor network to detect the instability of cargo boxes during transportation. Experimental
evaluation confirmed that the proposed method significantly extends the network lifetime and
ensures the accurate detection of events. It was also shown that the introduced method is more
effective in reducing data transmissions than the state-of-the-art event-triggered transmission and
dual prediction algorithms