Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

307 results for “proposed scheme”
Set a search alert
Research ArticleOpen accessIn the abstractCOGNITIVE AGENTS BASED SECURITY SCHEME TO HANDLE ROUTING LOOPS IN WIRELESS NETWORKSR. Kumar, G. KousalyaRouters in wireless networks are often prone to variety of attacks like a man in the middle, distributed denial of service, smurf, ping of death, routing loops, counting to infinity. Among all these attacks routing loop is the most common one and it have a harmful effect on network performance. In this study, we have proposed a novel cognitive agents … …Journal of Computer Science, Vol. 10, Issue 9 · 19 Apr 2014 · 6,721 accessesView PDFCite
Research ArticleOpen accessIn the abstractENERGY EFFICIENT FLOW AND LEVEL CONTROL IN A HYDRO POWER PLANT USING FUZZY LOGICA. Selwin Mich Priyadharson, M. S. Saravanan, N. Gomathi et al.The main objective and an innovative design of this work is to improve the energy efficiency by controlling the variables flow and level in a hydroelectric power plant using Programmable Logic Control (PLC)-Human Machine Interface (HMI) and fuzzy logic approach. This project will focus on design and development of flow and level controller for small scale hydro generating units by … …Journal of Computer Science, Vol. 10, Issue 9 · 19 Apr 2014 · 6,819 accessesView PDFCite
Research ArticleOpen accessIn the abstractA RECONFIGURABLE ARCHITECTURE OF TURBO DECODER FOR MIMO-HIGH SPEED DOWNLINK PACKET ACCESST. Yasodha, I. Jacob Raglend, K. Meena Alias JeyanthiA novel channel based rescheduling scheme for modern turbo convolution code is proposed by the inclusion of suboptimal and low-complex max-log-MAP algorithm. Demands for dedicated custom solutions in mobile communications and its related applications leads to a reconfigurable architecture for Turbo convolution code. This study comprises the design and performance evolution of the proposed reconfigurable architecture for channel coding scheme … …American Journal of Applied Sciences, Vol. 11, Issue 6 · 29 Mar 2014 · 6,705 accessesView PDFCite
Research ArticleOpen accessIn the abstractNEURO FUZZY BASED PERFORMANCE ANALYSIS OF MULTIBAND ULTRA WIDE BAND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMG. Joselin Retna Kumar, K. S. ShajiThis study proposes an efficient channel-estimation scheme for Multiband (MB) Orthogonal Frequency Division Multiplexing (OFDM)-based Ultra Wide Band (UWB) communication systems. One of the challenges in wireless system is the frequency selective fading caused due to multipath channel between the transmitter and receiver. The signal bandwidth in broad band cellular wireless systems typically exceeds the coherence bandwidth of the multipath … …Journal of Computer Science, Vol. 10, Issue 8 · 5 Mar 2014 · 6,624 accessesView PDFCite
Research ArticleOpen accessIn the abstractSPECKLE REDUCTION IN ULTRASOUND IMAGES USING NEIGHSHRINK AND BILATERAL FILTERINGR. Vanithamani, G. UmamaheswariSpeckle is a random multiplicative noise which obscures the perception and extraction of fine details in ultrasound images and speckle reduction is necessary to improve the visual quality of ultrasound images for better diagnosis. This study aims at introducing an algorithm by hybridizing bilateral filter with NeighShrink. The bilateral filter is applied before decomposition and after reconstruction of the image … …Journal of Computer Science, Vol. 10, Issue 4 · 19 Dec 2013 · 6,915 accessesView PDFCite
Research ArticleOpen accessIn the abstractQUALITY BASED SPEAKER VERIFICATION SYSTEMS USING FUZZY INFERENCE FUSION SCHEMELydia Abdul Hamid, Dzati Athiar RamliPerformances of single biometric speaker verification systems are outstanding in clean condition but drop significantly in noisy condition. Implementation of multibiometric systems is one of the solutions to this limitation. However, in order to ensure the performances of multibiometric systems are sustained, the optimum weight for the fusion system must be determined correctly according to the quality of current data. … …Journal of Computer Science, Vol. 10, Issue 3 · 3 Dec 2013 · 6,905 accessesView PDFCite
Research ArticleOpen accessIn the abstractDETERIORATING DISTRIBUTED DENIAL OF SERVICE ATTACK BY RECOVERING ZOMBIES USING PENALTY SCHEMEJ. Udhayan, M. Rajesh BabuResource of victim impounded by DDoS attack leads the victim to series monetary loss apart from various other ill-effects. Already lot of solutions came up in technological aspects almost neglecting the economical aspects. Hence there is not yet a proper method to make the zombies accountable to the economical loss materialized as the effects of highly zombie oriented DDoS attacks. … …Journal of Computer Science, Vol. 9, Issue 11 · 9 Oct 2013 · 6,703 accessesView PDFCite
Research ArticleOpen accessIn the abstractA 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 abstractRobust Electronic Differential Controller for an Electric VehicleA. Ravi, Sankaran PalaniThis study presents an efficient and robust control scheme of electronic differential system for an electric vehicle. The proposed system consists of two Brushless DC motors (BLDC) that ensure the drive of the two back driving wheels of an electric vehicle. Electronic Differential Controller (EDC) ensures the maximum torque and it can control both the driving wheel independently to turn … …American Journal of Applied Sciences, Vol. 10, Issue 11 · 10 Sep 2013 · 7,797 accessesView PDFCite
Research ArticleOpen accessIn the abstractModules Over Rings of Small Characteristics and Maximality of Data Hiding ratio in CPTE SchemesPhan Trung Huy, Cheonshik Kim, Nguyen Hai ThanhIntroduced CPT scheme as a block-based hiding scheme based on the ring of the integers modulo 2r, which permits to embed r = ⌊log2(k+1)⌋ secret bits in F by changing at most two entries, while the highest number of secret bits in any CPT-based schemes is MSDR2 = ⌊log2(1+k (k+1)/2)⌋, approximately 2r-1. This ratio can be reached approximately in our … …American Journal of Applied Sciences, Vol. 10, Issue 9 · 24 Aug 2013 · 6,711 accessesView PDFCite