Refine your search
Collections
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Khanaa, V.
- Performance Analysis of a Two Channel Optical WDM System using Binary and Duo Binary Modulation Formats
Abstract Views :516 |
PDF Views:0
Authors
Affiliations
1 Department of CSE, Sri Sai Ram Engg. College, Leo Nagar, Chennai 600 044, IN
2 Department of ECE, Bharath University, Chennai-600073, IN
3 Department of ETC, Bharath University, Chennai-600073, IN
1 Department of CSE, Sri Sai Ram Engg. College, Leo Nagar, Chennai 600 044, IN
2 Department of ECE, Bharath University, Chennai-600073, IN
3 Department of ETC, Bharath University, Chennai-600073, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4726-4732Abstract
The focus of this paper is to simulate a two channel optical WDM system for different bit rates. In this work, the comparison of both Binary and Duo binary modulation formats is carried out. Bit Error rate(BER) and Q factors are got improved with Duo binary modulation formats which will offer a significant performance benefits in digital systems.Keywords
Dense Wavelength Division Multiplexing (DWDM), Continuous Wave (CW) Lasor, Bit Error Rate (BER), Erbium Doped Fiber Amplifier (EDFA), Q Factor, Eye Diagrams, Duo BinaryFull Text
References
- Tawade L, and Deokate B (2011). The reduction of FWM effects using duobinary modulation in a two-channel D-WDM system, International Journal of Distributed and Parallel Systems, vol 2, No. 6, 303–307.
- Rahman M Z, and Islam M S (2011). Effect of chromatic dispersion on four-wave mixing in WDM optical transmission system, International Journal on Internet and Distributed Computing Systems, vol 1, No. 2.
- Tawade L, Jagdale S et al. (2010). Investigation of FWM effect on BER in WDM optical communication system with binary and duobinary modulation format, International Journal of Distributed and Parallel Systems, vol 1, No. 2, 109–116.
- ElRazak B K A, and Saleh M B (2011). Duobinary Modulation format and unequal channel spacing integration to suppress four-wave mixing crosstalk in WDM systems, 2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC).
- Lender A (1963). The duobinary technique for high speed data transmission, Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, vol 82(2), 214–218.
- Kaiser W, Wuth T et al. (2001). Reduced complexity optical duobinary 10Gb/s transmitter setup resulting in an increased transmission distance, IEEE Photonics Technology Letters, vol 13(8).
- Shibata N, Nosu K et al. (1999). Transmission limitations due to fiber nonlinearities in optical FDM systems, IEEE Journal on Selected Areas in Communications, vol 8(6), 1068–1077.
- Simulation of an All Optical Full Adder using Optical Switch
Abstract Views :480 |
PDF Views:0
Authors
Affiliations
1 Information Technology Bharath University Chennai-600073, IN
2 School of Computing, Bharath University, Chennai
3 Department of ETC, Bharath University, Chennai-600073, IN
1 Information Technology Bharath University Chennai-600073, IN
2 School of Computing, Bharath University, Chennai
3 Department of ETC, Bharath University, Chennai-600073, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4733-4736Abstract
The optical communication system has many advantages at long distance communication. Semiconductor optical amplifier based Mach Zehnder Interferometer plays an important role in fast optical communication. In this work the proposed SOA based MZI switch is used for all optical logic and arithmetic operations. In this architecture the continuous wave laser source and control signal pass through the Mach Zehnder Interferometer. Control signal at this wave length is split at the coupler and more power passes through one arm. The input data signal is fed to the coupler, which splits the signal equally. The resultant signals then propagates simultaneously through the two arms of the interferometer. This architecture can be used to perform all optical processing of signals like half adder, full adder, de multiplexer etc. MZI switch is a very powerful technique to realize ultrafast switching. The physical mechanism behind the working of MZI switch is cross-phase modulation (XPM). Here the gain saturation induced by beam reduces carrier density inside one SOA, which in turn increases the refractive index only in the arm through which the light passes. As a result, an additional phase shift can be introduced on the CW beam because of the XPM, and the CW wave is directed towards the bar port during each one bit. Now it is clear that in the absence of control signal, the incoming signal (CW signal) exits through the cross port (lower channel) of MZI. In this case no light is present in the bar port. But in the presence of the control signal, the incoming signal exits through the bar port of the MZI.Keywords
SOA, MZI, CW, OTA, Full AdderFull Text
References
- Hill M T et al. (2005). Coupled Mach-Zehnder interferometer memory element, Optics Letters, vol 30(13), 1710–1712.
- Mehra R, and Tripathi J K (2010). All optical switching in a semiconductor optical amplifier based Mach Zehnder interferometer, International Journal of Computer Application, vol 1(9), 102–106.
- Li Z (2006). Ultrafast all optical signal processing using semiconductor optical amplifier, Journal of Light waves, vol 24(1), 230–236.
- Poustie A (2007). Semiconductor optical amplifier lights up all optical signal processing, Journal of Lightwave Technology, vol 25(1), 103–108.
- Huang D (2008). Potential optoelectronic devices for all optical signal processing, SPIE Proceedings, vol 7134.
- Performance Analysis of Resilient FTTH Architecture with Protection Mechanism
Abstract Views :475 |
PDF Views:0
Authors
Affiliations
1 Department of Information and Technology, Bharath University, Chennai-600073, IN
2 Information Technology, Bharath University, Chennai-600 073
3 Dept. of IT, Bharath University, Chennai, IN
1 Department of Information and Technology, Bharath University, Chennai-600073, IN
2 Information Technology, Bharath University, Chennai-600 073
3 Dept. of IT, Bharath University, Chennai, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4737-4741Abstract
Fiber-To-The-Home [FTTH] is an alternate technology for broadband access networks. Passive optical network (PON) is considered the most promising solution due to the relatively low deployment cost. Current time division multiplexing [TDM] PON architectures are economically feasible, are band limited. The WDM PONs currently available offers enough bandwidth for the present and also for future multimedia broadband services. The purpose of this paper is to simulate resilient access network architecture with a cable route protection function based on hybrid wavelength division multiplexing and time division multiplexing passive optical network (WDM/TDM-PON) systems. Hybrid WDM-TDM PON combines the advanced features of both TDM PON and WDM PON. The reuse of existing optical fiber cable networks allows the introduction of duplicate routes for the shared portions of PONs by using a few optical fiber cables with simple structures. In this work, the hybrid WDM/TDM PON based Ladder network is simulated and the transmission characteristics evaluated. Simulation is done by using Optsim ver.5.3.Keywords
Time Division Multiplexing, WDM-TDM, Hybrid, Passive Optical NetworkFull Text
References
- Tsubokawa M, Honda N et al. (2011). Resilient FTTH architecture with Ladder and Grid network structures, Journal of Optical Communications and Networking, vol 3(11), 839–849.
- Kumar J, Arora M et al. (2012). Performance analysis of WDM-PON at 10Gb/s, International Journal of Engineering and Advanced Technology, vol 1(3), 214–216.
- Nakamura H (2012). λ-tunable WDM/TDM PON using DWBA towards flexible next-generation optical access networks, Progress in electromagnetic research symposium proceedings, vol 10(1), 507–510.
- Feng H, Chae C et al. (2011). Cost-effective and powerefficient extended-reach WDM/TDM PON systems, Optical Fiber Communication Conferences.
- Nowak D, and Murphy J (2010). FTTH: The Overview of existing technologies, SPIE Proceedings, vol 5825.
- Shumate P W (2008). Fiber–to–the home, Journal of Lightwave Technology, vol 26(9), 1093–1103.
- Tsubokawa M, and Kumozaki K (2008). Evolution of next generation access, World Telecommunications Congress, New Orleans, vol 202, 839–849.
- Vukovie A, Maamoun K et al. (2007). Performance characterization of PON technologies, SPIE proceedings , vol 66(1), 34–41.
- Lee K, Mun S et al. (2009). Reliable wide area wavelength division multiplexing passive optical network using novel protection scheme, IEEE Photonics Tehnology Letters, vol 18(3), 523–525.
- Nakamura H, Suzuki H et al. (2006). Reliable wide area wavelength division multiplexing passive optical network accommodating gigabit Ethernet and 10-Gb ethernet services, Journal of Lightwave Technology, vol 24(5), 2045–2051.
- Sun X, Chan C et al. (2006). A survivable WDM PON architecture with centralized alternate path protection switching for traffic restoration, IEEE Photonics Technology Letters, vol 18(4), 631–633.
- Bock C, and Prat J (2005). WDM/TDM PON Experiments using the AWG Free spectral range periodicity to transmit unicast and multicast data, Department of Signal Theory and Communications, vol 13(8), 2887–2891.
- Optical Ring Architecture Performance Evaluation using Ordinary Receiver
Abstract Views :389 |
PDF Views:0
Authors
Affiliations
1 Department of Information and Technology, Bharath University, Chennai-600073
2 Information Technology, Bharath University, Chennai-600073
3 Dept. of IT, Bharath University, Chennai, IN
1 Department of Information and Technology, Bharath University, Chennai-600073
2 Information Technology, Bharath University, Chennai-600073
3 Dept. of IT, Bharath University, Chennai, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4742-4747Abstract
Wavelength division multiplexing is an accepted technique to exploit the fiber bandwidth in metro network. Designing innovative architectures for metro network often means finding cost effective combinations of electronic and optic technologies and new network paradigms suited for constraints caused by available photonic components and subsystems. The three different and architectures included in this project the bulk of raw data in the optic domain while the implementation of the complex network formation is in the electronic domain. All the three ringO architectures perform λ monitoring. The basic ringO architecture is based on WDM fiber ring. The three ring architectures are designed and simulated using OptSim 5.3 software.Keywords
PON, Ring Topology, Node Architecture, Photodiode Array, LASER ArrayFull Text
References
- Bianciotto A, Carena A et al. Experimental WDM Packet Networks for Metro Applications: the RingO and Wonder Projects, PhotonLab and LIPAR Advanced Laboratories Dipartimento di Elettronica, Politecnico di Torino C.so Duca degli Abruzzi 24, 10129, Torino, Italy.
- Carena A, De Feo V et al. (2004). RingO: an Experimental WDM Optical Packet Network for Metro Applications, IEEE journal on selected areas in communications, vol 22(8), 1561–1571.
- Turuk A K, and Kumar R (2004). A scalable and collision free Mac protocol for all optical ring network, vol 27(15), 1453–1463.
- Su C, Chen L et al. (1997). Theory of burst-mode receiver and its applications in optical multiaccess networks, vol 15(4), 590–606.
- Burmeister E F, Blumenthal D J et al. (2006). Optical Buffering for Next-Generation Routers, Opto-Electronics and Communications Conference.
- Ring Network. Available From: http://en.wikipedia.org/wiki/ Ring_network
- Encyclopaedia of Laser Physics and Technology – amplified spontaneous emission. Available From: http://www.rpphotonics. com/amplified_spontaneous_emission.html
- Encyclopaedia of Laser physics and technology-wavelength tunability. Available From: http://www.rp-photonics.com/wavelength_ tuning.html
- Rsoft application gallery. Available From: http://www.rsoftdesign. com/products.php
- Yang H, Herzog M et al. (2004). Metro WDM networks: performance comparison of slotted ring and AWG star networks, IEEE Journal on Selected Areas in Communications, vol 22(8), 1460–1473.
- Georgiadis L, Guerin R et al. (1993). Throughput properties of fair policies in ring networks, IEEE/ACM Transactions on Networking, vol 1(6), 718–728.
- Lafata P (2012). Protection of passive optical network by using ring topology, 35th International Conference on Telecommunications and Signal Processing (TSP), 105–110.
- Gifford, and Kawachi, Polarization dependent loss measurement of passive optical components - application note.
- Carter B (2001). Using Texas instruments spice models in PSpice, Application Report, SLOA070, Texas Instruments, Dallas, TX. University of Pennsylvania Department of Electrical and Systems Engineering PSPICEA brief primer.
- Synthesis and Structural Characterization of Thin Films of SnO2 Prepared by Spray Pyrolysis Technique
Abstract Views :532 |
PDF Views:0
Authors
Affiliations
1 Deptartment of Information Technology, Bharath University Chennai-600073
2 Information Technology, Bharath University, Chennai-600 073
3 Department of ETC, Bharath University, Chennai-600073, IN
1 Deptartment of Information Technology, Bharath University Chennai-600073
2 Information Technology, Bharath University, Chennai-600 073
3 Department of ETC, Bharath University, Chennai-600073, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4754-4757Abstract
Thin films of Tin dioxide (SnO2) thin films are a special class of metal oxides that combine high electrical conductivity with optical transparency. Such Transparent Conducing Oxide (TCO) provides an important component for optoelectronic applications. Spray pyrolysis deposition for thin film preparation is a simple and relatively cost effective technique. This work consists of the synthesis of thin films of tin dioxide using automated spray pyrolysis technique and its structural characterization. Tin oxide films were prepared from different concentrations of the precursor solution. These films were found to be transparent at low concentration of the precursor solution. Characterization of these prepared films using X-ray diffraction technique is presented and discussed. Spray deposited thin films of tin dioxide have a number of applications, mainly as electrode materials in solar cells.Keywords
Transparent Conducting Oxide, Physical Vapour Deposition, Chemica Vapour Deposition, Transparent Conducting Oxides, Atomic Layer EpitaxyFull Text
References
- Perednis D, and Gauckler L J (2005). Thin film deposition using spray pyrolysis, Journal of Electroceramics, vol 14(2), 103–111.
- Seshan K (2002), Handbook of thin-film deposition processes and techniques- principles, methods, equipment and applications, Chapter 2, Noyes Publications.
- Muranoi T, and Furukoshi M (2001). Properties of stannic oxide thin films produced from the SnC14-H2O and SnC14-H2O2 reaction systems, Thin Solid Films, vol 48(3), 309–318.
- Tomar M S, and Garcia F J (1981). Spray pyrolysis in solar cells and gas sensors, Progress in Crystal Growth and Characterization of Materials, vol 4(3), 221–248.
- Batzill M, and Diebold U (2001). The surface and materials science of tin oxide, Progress in Surface Science, vol 79(2-4), 47–154.
- Bernardus van A M (2000). Chemical vapour deposition of tin oxide thin films, Ph.D Thesis, Technische Universiteit Eindhoven.
- Baco S, Chik A et al. (1999). Study on optical properties of tin oxide thin film at different annealing temperature, Journal of Science and Technology, vol 4, 61–72.
- Assia S, Ratiba O et al. (1999). Optical reflectance of pure and doped tin oxide: from thin films to poly-crystalline silicon/ thin film device, International Journal of Chemical and Biological Engineering, vol 2(1), 48–51.
- Delgado R D (1998). Tin oxide gas sensors: an electrochemical approach, Ph.D Thesis, Universitat De Barcelona.
- Sears W M, and Gee M A (1997). Mechanics of film formation during the spray pyrolysis of tin oxide, thin solid films, vol 165, 265–277.
- Patil G E, Kajale D D et al. (1998). Spray pyrolysis deposition of nanostructured tin oxide thin films, ISRN Nanotechnology, vol 2012.
- An Integrated Agent System for E-mail Coordination using Jade
Abstract Views :361 |
PDF Views:0
Authors
Affiliations
1 School of Computing, Bharath University, Chennai-600073
2 Information Technology, Bharath University, Chennai-600073, IN
3 Information Technology, Bharath University, Chennai-600073
1 School of Computing, Bharath University, Chennai-600073
2 Information Technology, Bharath University, Chennai-600073, IN
3 Information Technology, Bharath University, Chennai-600073
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4758-4761Abstract
With growing usage of computer applications there is growing dependence of business over computer aided services like e-mails. The CRM or E-Mail based marketing companies are becoming pervasive. There is always a greater need to prioritize the e-mails which has direct impact on the ROI - Return on Investment to run these companies in a way that to customers satisfied. In this paper, a method is proposed to prioritize the unread E-Mails based on users' interest and priority. This is implemented in this system using agent technology. The Agent mechanism is guided using JADE Middleware and it's underlying architecture. The Intelligent agent used here can learn the interest and priority of the user and use this knowledge to rearrange the unread mails. The Text corpus in the mail would undergo tokenization and each token would be matched with knowledgebase by the agent. The 90 percent precision of the prioritization. Thereby, the E-Mails are ranked according to interest and priority of the user.Keywords
Intelligent Agent, Tokenization, E-Commerce, Artificial IntelligenceFull Text
References
- Shen Y, and Jiang J (2003). Improving the performance of Naive Bayer’s for text classification, CS224N Spring Report.
- Koller D, and Sahami M (1997). Hierarchically classifying documents using few words, Machine Learning International Workshop, Technical Report.
- McCallum A, and Nigam K (1998). Comparison of event classification for event models for text classification, AAAI-98 Workshop on Learning for Text Categorization.
- Woolridge M, and Jennings N R (1995). Intelligent agents: theory and practice, Knowledge Engineering Review, vol 10, No. 2.
- Sahami M, Dumais S et al. (1998). A bayesian approach to filtering junk E-mail, AAAI-98 Workshop on Learning for Text Categorization.
- Russell S J, and Norvig P (2003). Artificial intelligence: a modern approach, 2nd Edn., Prentice Hall, 375–398.
- Grefensette G, and Tapaninian P (1994). What is a word, what is a Sentence? Problem of tokenization, Rank Xerox Research Center, Grenoble Laboratory, France.
- Shen W, Hao Q et al. (2006). Applications of agent based systems in intelligent manufacturing: an overview, Advanced Engineering Informatics, vol 20(4), 415–431.
- Caire G, Lavarone G et al. (2011). Jade Tutorial, Jade Programming for Android, Available From: http://jade. tilab.com
- Leonardo (2001). Intermedia in Electronic Images, MIT Press Journal, vol 34(1), 49–54.
- Chromatic Dispersion Compensation in Optical Fiber Communication System and its Simulation
Abstract Views :634 |
PDF Views:0
Authors
Affiliations
1 Department of Information Technology, Bharath University Chennai-600 073
2 Information Technology, Bharath University, Chennai-600 073
3 Department of ETC, Bharath University, Chennai-600073, IN
1 Department of Information Technology, Bharath University Chennai-600 073
2 Information Technology, Bharath University, Chennai-600 073
3 Department of ETC, Bharath University, Chennai-600073, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4762-4766Abstract
Chromatic dispersion is a critical factor that limits the quality of transmitted optical signal in high speed fiber optic communication systems. Chromatic dispersion occurs due to the propagation delay spread of different spectral components of the transmitted signal. This leads to the pulse broadening of transmitted signal. In order to operate the fiber optic communication system with a sufficiently low bit error rate and to minimize the performance degradation caused by pulse distortion and broadening, dispersion compensation is needed. The purpose of this project is to compensate the chromatic dispersion using fiber Bragg grating and optical phase conjugation techniques. Simulation results will be obtained using OPTSIM software version 5.3. Effect of chromatic dispersion in an optical fiber link was analyzed. Simulation using Fiber Bragg grating by varying its grating period and linear chirp coefficient was obtained.Keywords
(DCF)Dispersion Compensating Fiber,(OPC)Optical Phase Conjugator,(FBG)Fiber Bragg GratingFull Text
References
- Thirumaran S, Devi S K N et al. (2012). International Conference on Devices, Circuits and Systems (ICDCS), 34–37.
- Stepanek L (2012). Chromatic dispersion in optical communications, Journal of Electrical and Electronic Engineering, vol VII, No. 2, 142–151.
- Dabhade S S, and Bhosale S (2012). Fiber bragg grating and optical phase conjugator as dispersion compensator, International Journal of Advanced Electrical and ElectronicsEngineering, vol 1(1), 15–19.
- Bhowmik K, Ahamed M et al. (2012). Reduction of dispersion in optical fiber communication by fiber bragg grating and optical phase conjugation techniques, International Journal of obile Network Communications & Telematics (IJMNCT), vol 2, No.3, 49–58.
- Arora O, Punia S et al. (2011). Symmetrical dispersion compensation for high speed optical links, International Journal of Computer Science Issues, vol 8(6), No.1, 371–376.
- Spolitis S, Bobrovs V et al. (2011). Realization of combined chromatic dispersion compensation methods in high speed WDM Optical transmission Systems, Department of Telecommunications Engineering, vol 10, 33–38.
- Analysis of Polarization Mode Dispersion in Fibers and its Mitigation using an Optical Compensation Technique
Abstract Views :506 |
PDF Views:0
Authors
Affiliations
1 Department of Information Technology, Bharath University, Chennai-600073
2 Department of ETC, Bharath University, Chennai-600073, IN
1 Department of Information Technology, Bharath University, Chennai-600073
2 Department of ETC, Bharath University, Chennai-600073, IN
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4767-4771Abstract
The maximum channel density for digital transmission can be achieved by increase the bit rate. When the bit rate cross the 2.5Gbps , the PMD degrade the transmission characteristics. PMD occurs in single mode fiber and because of PMD it impossible to transmit data reliability at high speed. This effects results the widening the pulses and reduce the capacity of transmission of the fiber. This work analyzes the effect of PMD in optical fiber in one hindered km link fiber. The eye diagram, Q value and bit rate for analyzing the PMD. Also an optical compensation technique by which the effect of PMD can be reduced is also analyzed. bit error rate can be achieved by simulating with OptSim 5.3, which includes the algorithms to guarantee the maximum possible accuracy and correct results.Keywords
Local Area Network (LAN), Wavelength Multiplexing (WDM), Principle Rate of Polarization (PSP), Optical Fiber Communication (OFC)Full Text
References
- Borzycki K (2012). Temperature dependence of polarization mode dispersion in tight-buffered optical fibers, Journal of Telecommunications and Information Technology, 56–66.
- Kogelnik H, R M Jopson et al. (2006). Polarization-mode dispersion, Chapter 15, Optical Fiber Telecommunications, vol IV B, Kaminow I P, Li T (Eds.), Academic Press, San Diego, CA.
- Agarkar A M, Joharapurkar P (2010). PMD & DGD performance analysis in SMF due to fiber irregularities, International Journal of Computer Applications, vol 12, No. 6.
- Jamaludin M, Abas A F et al. (2005). Issues on polarization mode dispersion (PMD) for high speed fiber optics transmission, Suranaree Journal of Science and Technology, vol 12(2), 98–106.
- Kashyap K, and Singh H (2010). Study the effects and compensation of polarization mode dispersion at different bit rates, IOSR Journal of Engineering, vol 2(7), 32–40.
- Bulow H, Xie C et al. (2009). PMD Compensation/ Mitigation Techniques for High-Speed Optical Transport,Wiley Periodicals, Bell Labs Technical Journal, vol 14(1), 105–124.
- Manohari R G, and Sabapathi T (2011). Analysis and reduction of polarization mode dispersionin an optical fiber, International Conference on Recent Advancements in Electrical, Electronics and Control Engineering.
- Waddy D S, Chen L et al. (2010). A novel dynamical polarization mode dispersion emulator, IEEE Photonics Technology Letters, vol 1, No. 8, 534–536.
- Chauvel G (2008). Anritsu Corporation, Dispersion in Optical Fiber, vol 11, No.4, 12.
- High Data Rate for Coherent Optical Wired Communication using DSP
Abstract Views :441 |
PDF Views:0
Authors
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4772-4776Abstract
The aim of this research is the development and analysis of digital signal processing techniques for enhancing performance in coherent optical communication systems. While much of the current digital techniques are identical to those found in the digital wireless literature, we will investigate improvements in performance to be obtained by tailoring modulation and DSP post-processing algorithms to the optical. The combination of polarization-multiplexing and quadrature phase shift-keying (PM-QPSK or DP-QPSK) is emerging as one the most promising solutions to reach bit rates of 100 Gbps and higher. At the receiver end, the use of digital signal processing (DSP) [1, 2] results in significant deployment improvement over the traditional implementation. This application note shows a practical design of a 100 Gbps DP-QPSK transmission system using coherent detection with digital signal processing for distortion compensation.Keywords
Digital Signal Processing, QPSK, Optical ReceiverFull Text
- ATM Terminal Design using Biological Technology
Abstract Views :364 |
PDF Views:0
Authors
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4804-4807Abstract
The traditional Automatic Teller Machine (ATM) terminal customer recognition systems only rely on bank cards, passwords, and such identity verification methods which measures are not perfect and functions are too single. For solving the bugs of traditional ones, using a Biological Technology in new ATM terminal customer recognition systems (i.e.) fingerprint Mechanism. The chip of S3C2440 is used for the core of microprocessor in ARM9, furthermore, an improved enhancement algorithm of fingerprint image increase the security that customer use the ATM machine.Keywords
ATM Terminal, ARM9, Fingerprint Recognition, Image Enhancement, Gabor FilteringFull Text
- Comparative Study of UWB Communications over Fiber using Direct and External Modulations
Abstract Views :337 |
PDF Views:0
Authors
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4845-4847Abstract
This work presents an analysis of the Ultra Wide Band (UWB) Radio Frequency transmission over fiber using two types of modulation, direct and external. Both the modulation schemes are simulated by using OPTSIM 5.3 and optimized.Keywords
UWB, MB-OFDM, Radio Over Fiber, MZM, VCSEL, Q-FactorFull Text
- Performance Analysis of FTTH using GEPON in Direct and External Modulation
Abstract Views :396 |
PDF Views:0
Authors
Source
Indian Journal of Science and Technology, Vol 6, No S6 (2013), Pagination: 4848-4852Abstract
This work is intended to simulate an optical fiber communication system, FTTH with GEPON architecture, for both the direct and external modulation and to analyze the bit error rate (BER) at different distances.Keywords
FTTH, PON, GEPON, Tripleplay Service, BERFull Text
- An Efficient Weed and Pest Detection System
Abstract Views :143 |
PDF Views:0
Authors
Affiliations
1 Bharath University, Chennai – 600073, Tamil Nadu, IN
2 School of Computing, Bharath University, Chennai – 600073, Tamil Nadu, IN
1 Bharath University, Chennai – 600073, Tamil Nadu, IN
2 School of Computing, Bharath University, Chennai – 600073, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 8, No 32 (2015), Pagination:Abstract
In an agricultural field, farmers have a wide range of diversity to select suitable fruit and vegetable crops. However, the cultivation of these crops with quality produce is highly technical. Most challenging for farmers is to differentiate between crops and weeds. The proposed method identifies the weeds by using leaf parameters such as shape, color, and texture. Pest/disease detection is also possible by detection of varied shape and color of disease affected crop leaves. In order to improve the accuracy of weed detection, need to develop a weed detection algorithm which could be supported in all the cases accurately. Adding on, crops face many diseases. Pest/diseases are seen on the leaves of the plant. To avoid misclassification of such disease affected plant as weed, a new algorithm is developed for disease identification and included in weed detection algorithm. Recognition of normal leaf, diseased leaf and weed is based on similarity measure.Keywords
Euclidean Distance, Leaf Parameters, Image-Processing, Plant Disease Detection, Weed DetectionFull Text
- Design and Analysis of an Integrated Mems Harvester for Low Power Devices
Abstract Views :151 |
PDF Views:0
Authors
Affiliations
1 Information, Bharath University, Chennai–600073, Tamil Nadu, IN
2 School of Computing, Bharath University, Chennai–600073, Tamil Nadu, IN
1 Information, Bharath University, Chennai–600073, Tamil Nadu, IN
2 School of Computing, Bharath University, Chennai–600073, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 8, No 32 (2015), Pagination:Abstract
This paper introduces a hybrid energy harvester generating electric power from both ambient heat and vibration. Harvesting energy from vibration was realized by piezoelectric effect Phenomena in Lead Zirconate Titanate (PZT) crystals, whereas the energy generation from heat was supplied by making use of Seebeck effect of n-type and p-type Bi2Te3 thermocouples. The industrial software Comsol Multi physics is used for the simulation. A total voltage of 17.024V was generated from the thermoelectric part and .4 V from the piezoelectric part of the device. Total power produced from the chip is predicted to be 1.91nW.Keywords
Energy Harvesting, Micro Power Generation, Piezoelectric, Vibration, ThermoelectricFull Text
- A Review on Process of Data Mining Approaches in Healthcare Sectors
Abstract Views :438 |
PDF Views:0
Authors
K. Baalaji
1,
V. Khanaa
2
Affiliations
1 Dept of Computer Science, Bharath University, Chennai, IN
2 Dean-Information Technology, Dept. of IT, Bharath University, Chennai, IN
1 Dept of Computer Science, Bharath University, Chennai, IN
2 Dean-Information Technology, Dept. of IT, Bharath University, Chennai, IN
