Work place: Department of Computer Science and Engineering, Siddaganga Institute of Technology, Tumakuru, Karnataka, India
E-mail: asmanju@gmail.com
Website:
Research Interests: Computer systems and computational processes, Computer Architecture and Organization, Computer Networks, Data Structures and Algorithms
Biography
A.S. Manjunatha received his M.Tech and PhD in Computer Science 1988 and 2003 from Mysore University and Bangalore University, India respectively. He is working as Professor in the Dept of Computer Science and Engineering, Siddaganga Institute of Technology, Tumakuru, India. His research interests are Embedded Systems and solutions, Networking and communications, Wireless Networks and soft computing. He has published several papers in refereed International Journals and conferences.
By M. B. Nirmala A. S. Manjunatha
DOI: https://doi.org/10.5815/ijcnis.2015.12.06, Pub. Date: 8 Nov. 2015
Development of location estimation algorithms with improvement in location precision with lower cost, less energy consumption and less hardware support has become more important for many applications in Wireless Sensor Networks (WSNs). This paper addresses the problem of secure location determination, known as secure localization in WSNs using voting based technique which gives a search region in presence of anchor nodes. From the obtained search region trilateration is applied to know the position of sensor nodes. To avoid the involvement of sensor nodes in further location estimation process, bilateration is applied. Experimental analysis shows that the maximum number of nodes can be localized and accurate location of a node can be determined efficiently with low estimation error. To avoid the attacks and involvement of malicious nodes in the localization process, we implement an improved authentication and security algorithm. Using few location reference points in the localization process reduces the communication cost. The proposed scheme also provides very good localization accuracy.
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