TBSA: Ensuring Secure Data Communication in Wireless Sensor Network

Wireless Sensor Network, a wireless network of spatially dispersed autonomous devices deployed with sensors to monitor the physical and environmental conditions. The sensed data needs to be communicated to the sink where the data get analysed. Wireless Sensor Network requires a reliable, energy efficient architecture to ensure data communication from source to sink. The proposed Tree Based Secure Architecture, adopts a topology of tree with root node as parent node, intermediate and leaf nodes as child nodes. Parent node, the leader and communicates the data received from the child nodes to the sink. For secure data communication between parent node and child nodes, parent node adopts two techniques-one, the distribution of private keys among their child nodes and the other, is sending control message to the child node. As the energy level of parent node drops, then the next level node become the parent node and securely communicate data to the sink without packet loss. The paper also presents an experimental comparison between proposed Tree Based Secure Architecture and existing techniques towards network performance, false positive rate, drop rate, malicious node detection capability and energy efficiency both with stable nodes and mobile nodes. The Tree Based Secure Architecture ensures the secure data transmission with improved energy efficiency and network performance.