Dr.R.Varatharajan received his B.E,M.E and Ph.D degrees all in Electronics and  Communication Engineering from Anna University and Bharath University, India. His main area of research activity is Medical Image processing, Wireless Networks and VLSI Physical Design. He is served as a reviewer for  Springer, Inderscience and Elsevier journals. He has published many research articles in refereed journals and IEEE conferences. He has been the General chair  in several conferences. He is member of IEEE ,IACSIT, IAENG,SCIEI and ISTE wireless research group. He has been serving as Organizing Chair and Program Chair of several International conferences and in the Program Committees of several International conferences. Currently he is working as a professor in the Department of Electronics and Communication Engineering at Sri Lakshmi Ammaal Engineering College, Chennai, India.

Varatharajan.R “An Adaptive Non Linear filter based on Median of Minimum Distance for Salt and Pepper noise Removal in Mammogram Images” Accepted for  Current signal transduction therapy (Bentham science),2016.( ISSN:1574-3624) 

Varatharajan.R “ A Novel method to increase the coupling efficiency of laser to single mode fiber” Published in Journal of Wireless Personal Communications(Springer),2015.

( ISSN:0929-6212)

Varatharajan.R “ Evolutionary algorithmical approach for vlsi placement problem using signal processing” Published in journal of pure and applied microbiology(web of science indexed) volume 9,August 2015.(ISSN NO : 0973-7510)

Varatharajan.R “PORTR For MRI Brain Image Segmentation and Classification Using Adaptive Mean Shift Algorithm and Classification” International journal on applied engineering research, volume 10,no.4,2015.( ISSN NO :0973-4562)

Varatharajan .R  “  Comparison of Segmentation and Detection of Brain Tumor in MRI Images” World applied science journal, volume .32,no.10,2014.( ISSN NO: 1818-4952)

Varatharajan.R “ performance enhancement of a silicon MEMS piezoresistive single axis accelerometer with electroplated gold on a proof mass” Published in journal of theoretical applied information technology volume 67,No.3 September 2014(ISSN NO: 1992-8645)

Varatharajan .R “An Efficient VLSI Architecture for Nonbinary LDPC Decoder with Adaptive Message Control ”Published in world applied science journal  volume  32,number 9,2014. (ISSN NO: 1818-4952)

Varatharajan.R “Data  aggregation with less delay requirements for wireless sensor networks  ” Published in international journal of Engineering research  and science & technology volume 3,No.2 May 2014(ISSN NO: 2319-5991)

Varatharajan.R “Analysis of Voltage To Current Convert Sense Amplifier for Low Power Sram” Published in international journal of European journal of scientific research volume 102,No.2 May 2013(ISSN NO: 1450-216X / 1450-202X)

Varatharajan.R, “Evolutionary algorithmical approach for vlsi physical design-placement problem ”, Published in International Journal of electrical and power engineering, vol.2, No.2,  August 2011, USA.  (ISSN:2158-7566)

Varatharajan.R, “An effective memetic algorithm for solving channel routing problem”, Published in International Journal of computer applications(IJCA)  june 2011, USA.  (ISSN: 0975- 8887)

Varatharajan.R, “ Memetic Programming Approach for Floorplanning Applications”, Published in International Journal of information Engineering and Electronic business  August 2012, Hong kong.  (ISSN: 2074 - 9023)

Varatharajan.R, “ A Low Power BIST TPG for High Fault Coverage”, Published in International Journal of information Engineering and Electronic business  August 2012, Hong kong.  (ISSN: 2074-9023)

Lekha.R ,Varatharajan .R “Performance Evaluation of Low Density Parity Check Codes (LDPC) under Constraints of Phase and Frequency Offset for a Software Defined Radio (SDR) System” International Journal of Engineering Studies, volume 4,no.2,2012.

Senthamilselvan, lakshmi ,Varatharajan.R “Coding Techniques for Low Power Applications” world applied science journal, volume 32,no.12,2014.( ISSN NO: 1818-4952)

v  Lead Guest Editor for Special Issue “Advanced Signal Processing Techniques for detection of cancer dieses ” Current Signal Transduction Therapy (Scopus ,web of science indexed)  published by Bentham Science Publishers. (In-Press)(Impact factor : 0.54)

v  Lead Guest Editor for Special Issue “Recent Research Challenges in Mathematical Methods Applied to Healthcare Informatics and Image Processing” Journal of Medical Imaging and Health Informatics(Scopus , web of science indexed) published by American Science Publishers. (In-Press) (Impact factor : 0.877)

v  Lead Guest Editor for Special Issue “Soft computing in image processing and it’s applications ” Current Medical Imaging Review(Scopus ,Web of Science indexed)  published by Bentham Science Publishers. (In-Press) (Impact factor : 0.67)

v  Guest Editor for Special Issue “Wireless Networks ” Computer and electrical engineering(Scopus, web of science indexed)  Elsevier Publishers.(Impact factor : 1.084)

v  Lead Guest Editor for Special Issue “Green mobile computing for energy efficient next generation wireless communication” International journal of Advanced Intelligent paradigms (Scopus Indexed) published by Inderscience Publishers.

v  Lead Guest Editor for Special Issue “Mobile learning technologies, application and evaluation of future mobile networks” Computer and Electrical Engineering (Science citation indexed , Scopus Indexed) published by Elsevier Publishers(Impact factor : 1.084).

v  Lead Guest Editor for Special Issue “Machine learning techniques for medical and biological applications” International Journal of biomedical engineering and technology (Scopus Indexed) published by Inderscience Publisher.

Convener for  International Conference on Applied Research on Engineering (iCARE'14) and (iCARE'15)