Energy-Efficient Data Compression in Clustered Wireless Sensor Networks using Adaptive Arithmetic Coding with Low Updating Cost
Kamol Kaemarungsi, Poonlap Lamsrichan, Kiyomichi Araki · 2011
This work presents a study of energy reduction technique using data compression based on arithmetic coding in clustered wireless sensor networks to maximize the network's lifetime. Initially, a simulation approach is used to investigate the effect of multiple data types found in environmental monitoring application on data compression and the effect of cluster's parameters on their energy consumption. This study points out the important of probability models of multiple sensor data such as temperature and relative humidity on the arithmetic coding's performance. The investigation results provide insights for designing an energy-efficient arithmetic coding framework that is suitable for compressing multiple data types in clustered multi-hop wireless sensor networks. Finally,an implementation of an adaptive local data compression algorithm derived from our findings and design framework on a set of four TinyOS based Tmote Sky wireless sensor nodes equipped with temperature and relative humidity sensors is presented with approximately 54 percent data compression results.