Secure Data Aggregation & Query Processing in Wireless Sensor Networks using Enhanced Leach Protocol
Vijayalakshmi G.1, Hema S.2, Geethapriya S.3

1Vijayalakshmi G., (ME Network Engineering), Publication in IJCNS.
2Menbership in ISTE,IETE. Hema S., (ME APPLIED ELECTRONICS), Menbership in ISTE.

Manuscript received on November 11, 2013. | Revised Manuscript received on November 15, 2013. | Manuscript published on November 25, 2013. | PP: 51-56 | Volume-2 Issue-1, November 2013. | Retrieval Number: A0576112113/2013©BEIESP

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Abstract: Data aggregation and storage has become very important issue in Sensor networks for future information retrieval. Storage nodes serve as an intermediate tier between sensors and a sink for storing data and processing queries in wireless sensor networks. The importance of storage nodes also makes them attractive to attackers. Data Storage is happens via the Forwarding nodes and Storage nodes. Storage nodes are introduced in this paper to store collected date from the sensors in their proximities, It reduce the energy cost and communication cost induced by network query. Aim of the project is to deploy the storage nodes and secure data transmission for cluster-based WSNs (CWSNs), where the clusters are formed dynamically and periodically. We propose two Secure and Efficient data Transmission (SET) protocols for CWSNs, called SET-IBS and SET-IBOOS, by using the Identity-Based digital Signature (IBS) scheme and the Identity-Based Online/Offline digital Signature (IBOOS) scheme, respectively. The cluster routing protocol LEACH (Low-Energy Adaptive Clustering Hierarchy) is considered and improved. We propose a clustering routing protocol named Enhanced LEACH, which extend LEACH protocol by balancing the energy consumption in the network. The simulation results show that Enhanced LEACH outperforms LEACH in terms of network lifetime and power consumption minimization.