Mix-encode Algorithm for Data Compression in Wireless Sensor Networks
Dingyi Fang · Journal of Chinese Computer Systems · 2011
Efficient utilization of energy is a core area of research in wireless sensor networks since sensor nodes are powered by batteries which cannot be generally changed or recharged.The communication module utilizes a major part of the energy expenditure of a sensor node.Hence data compression methods to reduce the number of bits to be transmitted by the communication module will significantly reduce the energy requirement and increase the lifetime of the sensor node.Through analyze the natural correlation and sensor data distribution in a typical wireless sensor network,this paper designed a lossless sensor data compression algorithm called Mix-Encode algorithm.Compared with the Simple-Huffman algorithm,the purposed algorithm indicated better compression ratio and performance.