A Data Collecting Scheme using Broadcast Delivery in Sensor Networks
Tomoki Yoshihisa, Shojiro Nishio · 2007
To make a weather observation or see the picture of a disaster, sensor networks, in which sensors such as temperature or humidity communicate, have recently attracted attention. Several schemes are proposed to collect data generated by sensors effectively. However, when there are many sensors, it takes long time to collect sensor data since information traffic is large. In this paper, we proopse a data collecting scheme that conjectures sensor data and broadcasts them. In our proposed scheme, sensors that have data vastly differ from conjectured data only transmit their sensor data. Accordingly, information traffic is reduced and the necessary time for collecting data becomes short. Our evaluations show that our proposed scheme can collect data faster than a conventional collecting scheme when there are many sensors.