• Ballina Mohana Lakshmi
• D. Lalitha Bhaskari

Wireless Sensor Networks is an emerging and challenging technology with low processing and battery power. Security becomes a major issue in wireless sensor networks because of its wireless nature; it is prone to various types of attacks and loss of data packet. In this paper, various security mechanisms are discussed to find malicious nodes and to do secure routing. In the proposed work, our main aim is to find the trusted node by using a trust model and the malicious report is checked, and routing is done. It provides security features with minimum overhead and energy efficiency. Trust-aware routing protocol plays a vital role in the security of wireless sensor networks, which is one of the most popular network technologies for the smart city. However, several key issues in conventional trust-aware routing protocols remain to be solved, such as the compatibility of trust metric with quality of service metrics and the control of overhead produced by trust evaluation procedure. This paper analyzes the features of common attacks on trust-aware routing schemes, then, specific trust computation and trust derivation schemes are proposed based on analysis results. Finally, our design uses the combination of trust metric and quality of service metrics as routing metrics to present an optimized routing algorithm. From the simulation, centralized secure routing can achieve both intended security and high efficiency

Wireless Sensor Networks, Secure routing, Security, Energy efficient, Communication trust, Data trust, Optimal route, Trust management

"An Improved Trust Aware Routing Protocol for Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.205-212, June 2019, Available :http://www.jetir.org/papers/JETIR1907E30.pdf

"An Improved Trust Aware Routing Protocol for Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp205-212, June 2019, Available at : http://www.jetir.org/papers/JETIR1907E30.pdf