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12 results for “P. Ramamoorthy”
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Research ArticleOpen accessIn the author namesDiabetic Retinopathy Detection using Deep Learning TechniquesAswin Shriram Thiagarajan, Jithendran Adikesavan, Santhi Balachandran, Brindha Ganapathyagraharam RamamoorthyDiabetic Retinopathy is a type of eye condition induced by diabetes, which damages the blood vessels in the retinal region and the area covered with lesions of varying magnitude determines the severity of the disease. It is one of the most leading causes of blindness amongst the employed community. A variety of factors are observed to play a role in … …Journal of Computer Science, Vol. 16, Issue 3 · 13 Mar 2020 · 10,276 accessesView PDFCite
Research ArticleOpen accessIn the author namesANALYSIS OF REDUCTION IN COMPLEXITY OF MULTIPLE INPUT- MULTIPLE OUTPUT-ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS WITH CARRIER FREQUENCY OFFSET ESTIMATION AND CORRECTIONSabitha Gauni, Kumar RamamoorthyOrthogonal Frequency Division Multiplexing (OFDM) is a promising research area in Wireless Communication for high data rates. The Multiple Input-Multiple Output (MIMO) technology when incorporated with the OFDM system promise a significant boost in the performance. But, the MIMO-OFDM systems are very sensitive to Carrier Frequency Offset (CFO) as it deteriorates the system performance with the rise of Inter-Carrier-Interference (ICI). … …Journal of Computer Science, Vol. 10, Issue 2 · 13 Nov 2013 · 6,791 accessesView PDFCite
Research ArticleOpen accessIn the author namesA NOVEL TWO STAGE CARRIER FREQUENCY OFFSET ESTIMATION AND COMPENSATION SCHEME IN MULTIPLE INPUT MULTIPLE OUTPUT-ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM USING EXPECTATION AND MAXIMIZATION ITERATIONMalarvezhi Pandy, Kumar RamamoorthyMultiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising technique to handle impairments of multipath channel. Alternatively, one of its major drawbacks is drift in carrier frequency, called Carrier Frequency Offset (CFO). Due to CFO, Inter Carrier Interference (ICI) occurs and results in a large performance degradation. The study proposes a novel two stage CFO estimation and compensation … …Journal of Computer Science, Vol. 9, Issue 11 · 30 Sep 2013 · 6,552 accessesView PDFCite
Research ArticleOpen accessIn the author namesQUALITY OF SERVICE AWARE OF CROSS LAYER APPROACH ON ADAPTIVE GATEWAY DISCOVERY SCHEME FOR MOBILE AD HOC NETWORKSK. Palani, P. RamamoorthyThe Quality of Service (QoS) providing in Mobile Ad hoc networks has been obtaining increasing importance, specifically Consider the domains of application for networks in disaster environments and defense ventures, QoS is performing level of a service recommended by the network to the consumer. Mobile Ad hoc Networks (MANET) are necessary because of wireless infrastructure network is complicated to setup … …Journal of Computer Science, Vol. 9, Issue 10 · 5 Sep 2013 · 6,212 accessesView PDFCite
Research ArticleOpen accessIn the author namesMulticost Routing Approach in Wireless Ad hoc NetworksD. Loganathan, P. RamamoorthyProblem statement: A Wireless ad hoc network is a collection of autonomous movable nodes that communicate with each other over wireless links without any static infrastructure. In these networks there is no fixed topology because of the mobility of nodes, interference, multipath propagation and path loss. A variety of routing protocols and algorithm with varying network settings are analyzed to … …Journal of Computer Science, Vol. 8, Issue 10 · 30 Aug 2012 · 6,739 accessesView PDFCite
Research ArticleOpen accessIn the author namesPrincipal Component Analysis Based Feature Extraction, Morphological Edge Detection and Localization for Fast Iris RecognitionM. Suganthy, P. RamamoorthyThis study involves the Iris Localization based on morphological or set theory which is well in shape detection. Principal Component Analysis (PCA) is used for preprocessing, in which the removal of redundant and unwanted data is done. Applications such as Median Filtering and Adaptive thresholding are used for handling the variations in lighting and noise. Features are extracted using Wavelet … …Journal of Computer Science, Vol. 8, Issue 9 · 9 Aug 2012 · 7,753 accessesView PDFCite
Research ArticleOpen accessIn the author namesPalmprint Recognition using Feature Level FusionR. Gayathri, P. RamamoorthyProblem statement: Palmprint based biometric method has gained high impact over the other biometric methods due to its ease of acquisition, reliability and high client acceptance. Multiple feature extraction from image gives higher accuracy of the authentication system. Approach: This study presents the palmprint based identification methodology which uses the Gabor wavelet entropy to extract multiple features existing on the … …Journal of Computer Science, Vol. 8, Issue 7 · 19 May 2012 · 6,989 accessesView PDFCite