Error Performance of JPEG and Watermark Authentication Techniques in Wireless Sensor Network
Muhammad Abdus Salam, Hesham Elashhab · International Journal of Security Privacy and Trust Management · 2014
Wireless sensor network (WSN) iscomposed of tiny sensors and they are powered by energy-constraint battery.The continual need to utilize limited bandwidth to absorb most of the packets has led to a great deal of research in the field of data compression.WSN has been exploited to balance the maintenance of readable information content with acceptable error and the cost of energy consumed by the collecting nodes during the compression.In this paper, we compared two compression techniques: JPEGand watermark authentication.We applied both techniques and used error measurement to indicate system performance regardless of the number of execution instructions.Wefound that it is not enough to use errormeasurement onlybut the number of executing instructions must also beconsidered.The digital watermark approach showed a lower average error compared to JPEGapproach.However, there were fewer instructions in the JPEG approach compared towatermark approach.