Abstract: “In recent years, wireless sensor networks (WSNs) featured an exponential growth, which has revolutionised the field of telecommunication. A wireless sensor network consists of a group of tiny battery powered sensor nodes capable of reading, processing and reporting the data to the Base station (sink).One of the major issues faced by sensor nodes is the energy constraint due to the limited energy sources in the form of tiny batteries. Therefore energy efficient data transfer presents the major challenge in a WSN. In this paper we investigate various Wavelet Transform based Effective Energy Utilisation approaches of data transfer in WSNs. These approaches can be used significantly to minimise the energy necessary for the efficient data communication in WSNs while meeting the constraints of data quality and bandwidth of wireless sensor networks”

Keywords: Wireless Sensor Networks (WSNs); Discrete Wavelet Transform (DWT); PSNR; Discrete Cosine Transform; Image Compression; Skipped High-pass Sub-band (SHPS)