Study on Compression Technique for Streaming Data in Wireless Sensor Networks
面向无线传感器网络的流数据压缩技术

Wireless sensor networks have been applied in several scenarios to perform complex monitoring and computing tasks.Such networks pose new challenges in data processing and dissemination because of the limited resources(processing,bandwidth,energy)that such devices possess.In this paper,a compression technique(named CODST)based on curve simulating is proposed to compress streaming data collected by each sensor.The compressed streaming data are recovered in the base station.Experimental results show that the proposed compression technique CODST preserves the precision of the compressed streaming data.CODST also reduces the quantity of transmitting data,which saves the bandwidth and energy.