SECURED IMAGE TRANSMISSION USING LEHS ALGORITHM IN WIRELESS SENSOR NETWORK TO ENHANCE THE NETWORK'S LIFETIME

Multimedia devices interconnected with the wireless sensor networks are able to transmit and retrieve the images because of the availability of low-cost CMOS cameras. Many cryptographic algorithms are proposed for transmitting image in a secured manner. In this paper, an image is transmitted in a secured manner by enhancing the application specific Wireless Sensor Network's lifetime using LEHS algorithm. Modified Hill cipher, Double Guard Hill cipher used as a cryptographic algorithm to provide secured image transmission and Losningen cross layer approach are used to enhance the wireless sensor network's lifetime by utilizing the energy efficiently in order to reduce the end-to-end delay, packet loss and routing overhead in the network. Network simulator-2 results show that the network's lifetime was enhanced by 1.2 times using Losningen cross-layer approach higher than AODV routing protocol without the cross-layer technique, and 1.6 times higher for secured image transmission using LEHS algorithm.