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12 articles for “M. Sekar”
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Research ArticleOpen accessIn the author namesEnhanced Channel Estimation and Performance Analysis Using H-Infinity Filter for MIMO-Orthogonal Frequency Division Multiplexing SystemsJoseph Gladwin Sekar, Salivahanan SankarappanThis paper, deals with H-infinity channel estimation technique for Orthogonal Frequency Division Multiplexing (OFDM) systems, in fading channel. Channel estimation is important for wireless applications because, in practical transmission scenario, channel correlation functions are either not known or cannot be easily estimated. It is therefore desirable to have an estimator which is robust to mismatches between the assumed and the … …Journal of Computer Science, Vol. 11, Issue 2 · 29 Jan 2015 · 6,827 accessesView PDFCite
Research ArticleOpen accessIn the author namesUBIQUITOUS PALM DISPLAY AND FINGERTIP TRACKER SYSTEM USING OPENCVSathish Sekar, Shriram K. Vasudevan, Kaushik Velusamy et al.Ubiquitous Computing is the idea of embedding computation onto everyday objects of the environment we live in. It’s the approach towards making technology and computation available everywhere thereby making people interact with abundant information around them in a more natural and friendly manner. Our project, the palm display system is one such approach of using one’s palm as the graphical … …Journal of Computer Science, Vol. 10, Issue 3 · 22 Nov 2013 · 6,930 accessesView PDFCite
Research ArticleOpen accessIn the author namesLabview Based Autonomous Agricultural Robot Using Fuzzy Logic ControllerPrema Kannan, Senthil Kumar Natarajan, Subhransu Sekar DashThis study proposes a LabVIEW based autonomous agricultural robot which can be used for ploughing. The control logic is designed using fuzzy logic controller to operate the robot in autonomous mode. The robot can also be controlled from a remote place using internet and its position is monitored using Global Positioning System (GPS), Data Socket protocol and Wi-Fi connection. Two … …American Journal of Applied Sciences, Vol. 10, Issue 11 · 24 Sep 2013 · 7,051 accessesView PDFCite
Research ArticleOpen accessIn the author namesVLSI Implementation of Channel Estimation for MIMO-OFDM TransceiverJoseph Gladwin Sekar, Salivahanan SankarappanIn this study the VLSI architecture for MIMO-OFDM transceiver and the algorithm for the implementation of MMSE detection in MIMO-OFDM system is proposed. The implemented MIMO-OFDM system is capable of transmitting data at high throughput in physical layer and provides optimized hardware resources while achieving the same data rate. The proposed architecture has low latency, high throughput and efficient resource … …American Journal of Applied Sciences, Vol. 10, Issue 10 · 6 Sep 2013 · 6,556 accessesView PDFCite
Research ArticleOpen accessIn the author namesDesign and Study of Online Fuzzy Risk Score Analyzer for Diabetes MellitusSunithaKarnam Anantha, Senthil Kumar Natarajan, Subransu Sekar DashThe aim of this study is to determine the risks of various subjects to type 2 Diabetes and its dependence on the different subject records. A Fuzzy based system was designed to find the risk scores for diabetes based on risk score derived from Chennai Urban Rural Epidemiology Study (CURES). The risk score that has been adapted into the system … …American Journal of Applied Sciences, Vol. 10, Issue 9 · 24 Aug 2013 · 6,384 accessesView PDFCite
Research ArticleOpen accessIn the author namesMODELING AND SIMULATION OF FUZZY BASED AUTOMATIC INSULIN DELIVERY SYSTEMSunithaKarnam Anantha, Senthil Kumar Natarajan, Subransu Sekar DashThe aim is to design a complete online, automatic, intelligent and independent insulin delivery system. The proposed system calculates the amount of insulin by formulation based upon two linguistic factors i.e. weight and blood glucose levels. These factors have been used to develop a rule based fuzzy system in LabVIEW. The fuzziness brings a better regulation into the regime than … …Journal of Computer Science, Vol. 9, Issue 9 · 6 Aug 2013 · 6,627 accessesView PDFCite
Research ArticleOpen accessIn the author namesDESIGN OF FUZZY LOGIC CONTROLLER FOR ONLINE SPEED REGULATION OF DC MOTOR USING PWM TECHNIQUE BASED ON LABORATORY VIRTUAL INSTRUMENT ENGINEERING WORKBENCHPrema Kannan, Senthil Kumar Natarajan, Subhransu Sekar DashThis study details online speed regulation of DC motor using PWM technique based on LabVIEW. A fuzzy logic controller is designed to change the pulse width of switching signal applied to the converter and thereby the voltage fed to the armature of the separately excited DC motor to regulate the speed. The proposed system is connected to the server computer … …Journal of Computer Science, Vol. 9, Issue 8 · 4 Jul 2013 · 6,719 accessesView PDFCite
Research ArticleOpen accessIn the author namesAttaining the Room Comfort by Solar Reflective PaintM. Sakthivel, M. Sekar, C. Ramesh, S. Satheesh KumarThe objective of this research was to provide the Room comfort by means of Solar Reflective Paint (SRP) on the roof and thereby reducing the consumption of electrical energy. Solar heat diffuses through roof into the room resulting in human discomfort. Human discomfort leads to the usage of electrical energy. Valuable energy has to be conserved. Three different samples of … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 18 Sep 2012 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the author namesPerformance Analysis of IEEE 802.16d using Forward Error CorrectionVenkatesh Sekar, V. Palanisamy, K. BaskaranProblem statement: Worldwide Interoperability for Microwave Access is the broadband wireless technology for terrestrial broadcast services in Metropolitan Area Networks. This BWA technology is based on Orthogonal Frequency Division Multiplex (OFDM) technology and considers the radio frequency range up to 2-11 GHz and 10-66 GHz. The objective of this research work is the performance analysis of AWGN, SUI-1 and SUI-2 … …Journal of Computer Science, Vol. 7, Issue 3 · 9 Mar 2011 · 7,343 accessesView PDFCite
Research ArticleOpen accessIn the author namesNumerical Investigation of an Industrial Robot Arm Control Problem Using Haar Wavelet SeriesS. Nandhakumar, V. Selladurai, S. SekarProblem statement: An error minimization in robot arm dynamics improves operations and performance of production systems. Many contributions have been made in area of robot dynamics since the earliest study more than two decades, but, a number of researchers are still contributing various principles and new techniques for the best use of robots in reality, especially in the field of … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,045 accessesView PDFCite