Krishna Institute Of Engg And Technology

Ghāziābād, India

Krishna Institute Of Engg And Technology

Ghāziābād, India
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Ansari A.Q.,Jamia Millia Islamia University | Gupta N.,Krishna Institute Of Engg And Technology
ACE 2010 - 2010 International Conference on Advances in Computer Engineering | Year: 2010

Computational intelligence combines neural network, fuzzy systems and evolutionary computing. In this manuscript a neurofuzzy filter (NFF) is presented, which is based on fuzzy if-then rules (structure learning) and the tuning of the parameters of membership function (parameter learning). In the structure learning, fuzzy rules are found based on the matching of input-output clusters. In the parameter learning, the consequent parameters are tuned optimally by either least mean square (LMS) or recursive least squares (RLS) algorithms and the pre condition parameters are tuned by backpropagation algorithm. Both the structure and parameter learning are performed simultaneously as the adaptation proceeds. Simulation for echo cancellation in cellphone is performed. Good performance is achieved by applying the NFF to echo cancellation on a cellphone. © 2010 IEEE.


Ansari A.Q.,Jamia Millia Islamia University | Gupta N.K.,Krishna Institute Of Engg And Technology | Ekata,Krishna Institute Of Engg And Technology
Proceedings - 4th International Conference on Computational Intelligence and Communication Networks, CICN 2012 | Year: 2012

In this paper, automatic diagnosis of asthma usingneurofuzzy approaches are presented. Adaptive Neural Fuzzy Inference System(ANFIS) is put in the framework of adaptive systems to facilitate learning and adaptation which uses back propagation algorithm to reduce the error in the output. In first phase input variables are prepared by taking a healthy person as a reference and in second phase these inputs with asthma patient are given to ANFIS to obtain output. Simulated result shows the proposed work for automated diagnosis, which have performed by using the realistic causes of asthma disease are effective. © 2012 IEEE.


Kumari S.,Banasthali University | Singh P.,Krishna Institute Of Engg And Technology | Gautam R.,Krishna Institute Of Engg And Technology | Verma A.S.,Banasthali University
AIP Conference Proceedings | Year: 2014

In this work, CIGS (Copper Indium Gallium Diselenide) based solar cell structure has been simulated. We have been calculated short circuit current, open circuit voltage and efficiency of the cell. The thickness of the absorption layer is varied from 400 to 3000 nm, keeping the thickness of other layers unchanged. The effect of absorption layer thickness over cell performance has been analyzed and found that the efficiency increases upto 22% until the thickness of the absorption layer reaches around 2000 nm. © 2014 AIP Publishing LLC.


Ekata,Krishna Institute Of Engg And Technology | Singh S.B.,Sudan University of Science and Technology
Journal of Engineering Science and Technology | Year: 2011

The aim of the present paper is to study and examine the various reliability characteristics of a global mobile satellite communication System (GMSCS) with the help of mathematical modelling. GMSCS basically comprises of four subsystems; Space segment, Land earth stations, Telecommunication terminals and Mobile earth stations. The system under consideration can have three different modes of working: normal, partial and complete failure. The system is characterized by determination of probabilities being in 'up' and 'down' states at any instant. Integro-differential equations are derived for these probabilities by identifying the system at suitable regeneration epochs. Based on the assumption that the failure rates of units are distributed exponentially while the repair rates are distributed arbitrarily, different reliability measures like operational availability, reliability, mean time to failure and cost effectiveness have been computed with the principle of Laplace transforms and supplementary variable technique. Considerable attention is devoted to illustrate the results with numerical examples to highlight the important features of reliability measures of the system. © School of Engineering, Taylor's University.


Kumar V.,Krishna Institute Of Engg And Technology | Sharma A.,Krishna Institute Of Engg And Technology | Sharma D.K.,Krishna Institute Of Engg And Technology | Dwivedi D.K.,Madan Mohan Malaviya University of Technology
Optik | Year: 2014

Sulphides of zinc and cadmium have been utilized effectively in various opto-electronic devices. In the present work cadmium zinc sulphide (Cd 0.4Zn0.6S) thin film has been deposited on ultra clean glass substrate by a simple inexpensive screen-printing method using cadmium sulphide, zinc sulphide, anhydrous cadmium chloride and ethylene glycol. Cadmium chloride has been used as sintering aid and ethylene glycol as a binder. Effect of sintering aid on the optical and structural properties of prepared cadmium zinc sulphide film has been investigated. The optical band gap (Eg) of the film has been studied by using reflection spectra in wavelength range 325-600 nm. It is found that reflection spectra suffer a drastic fall at two places, which is indicative of two band gaps of film viz. 2.38 eV and 2.9 eV corresponding to CdS and Cd0.6Zn0.4S, respectively. This is suggestive of the fact that cadmium zinc sulphide is a wide band gap semiconducting material. X-ray diffraction also confirms the formation of Cd0.6Zn0.4S composition. © 2013 Elsevier GmbH.


Kumar V.,Krishna Institute Of Engg And Technology | Sharma S.K.,DAV College Kanpur | Dwivedi D.K.,Madan Mohan Malaviya University of Technology
Journal of Alloys and Compounds | Year: 2012

In this paper a screen-printing method has been employed for the deposition of low zinc content cadmium zinc sulphide (Cd 0.9Zn 0.1S) composite thin films on ultra clean glass substrate. Cadmium sulphide, zinc sulphide and cadmium chloride have been used as the basic source material. With these basic source materials, the optimum conditions for preparing good quality screen-printed films have been found. X-ray diffraction studies revealed that the films are polycrystalline in nature, single phase exhibiting wurtzite (hexagonal) structure with strong preferential orientation of grains along the (1 0 1) direction. SEM/EDAX analysis confirms the formation of ternary compound. The optical band gap (E g) of the films has been studied by using reflection spectra in wavelength range 350-600 nm. The DC conductivity of the films has been measured in vacuum by a two probe technique. © 2011 Elsevier B.V.


Tripathi A.K.,Krishna Institute Of Engg And Technology | Radhakrishanan R.,ABES Engineering College | Lather J.S.,National Institute of Technology Kurukshetra
Proceedings of the 2014 International Conference on Issues and Challenges in Intelligent Computing Techniques, ICICT 2014 | Year: 2014

In the last decade tremendous development in the area of mobile and wireless network. Internet Engineering Task Force (IETF) proposed Mobile IPv6 to provide mobility in wireless IPv6 networks. But still transparent mobility over the Internet is one of the biggest in challenges. Recently Hierarchical Mobile IPv6 (HMIPv6) and Proxy Mobile IPv6 (PMIPv6) are proposed to reduce the handover latency and as a result to reduce packet loss. This paper analyzes impact of handover latency wireless link delay on handover latency and compares the results analytically. © 2014 IEEE.


Rahamatkar S.,Nagpur Institute of Technology | Agarwal A.,Krishna Institute Of Engg And Technology
Communications in Computer and Information Science | Year: 2011

Time synchronization for wireless sensor networks (WSNs) has been studied in recent years as a fundamental and significant research issue. Many applications based on these WSNs assume local clocks at each sensor node that need to be synchronized to a common notion of time. Time synchronization in a WSN is critical for accurate time stamping of events and fine-tuned coordination among the sensor nodes to reduce power consumption. This paper proposes a lightweight tree structured time synchronization approach for WSNs based on reference nodes. This offers a push mechanism for (i) accurate and (ii) low overhead for global time synchronization. Analysis and comparative study of proposed approach shows that it is lightweight as the number of required broadcasting messages is constant in one broadcasting domain. © Springer-Verlag Berlin Heidelberg 2011.


Goel V.,Ajay Kumar Garg Engineering College | Panwar G.,Ajay Kumar Garg Engineering College | Ahlawat A.K.,Krishna Institute Of Engg And Technology
Proceedings of the 2013 3rd IEEE International Advance Computing Conference, IACC 2013 | Year: 2013

In wireless communication, broadcasting is one of the most suitable solutions of information dissemination. It is very attractive for limited resource handheld mobile devices in asymmetric communications. Access time and Tuning time are two criteria to evaluate the performance of air indexing technique. Indexing can reduce tuning time of the mobile devices by switching mobile device into doze mode while waiting for desired of data to arrive and active mode while desired of data has presented. Some air indexing techniques can save limited battery power while incurring only limited overhead on access time. In this paper, we discuss and analyze energy efficient air indexing techniques for single and multi-level wireless channel. The basic indexing techniques i.e. B+ tree, the hashing and the signature schemes of data broadcasting are compared between Single and Multi-level channel. © 2013 IEEE.


Pandey A.,Krishna Institute of Engg and Technology | Gupta N.K.,Krishna Institute of Engg and Technology
2014 IEEE Students' Conference on Electrical, Electronics and Computer Science, SCEECS 2014 | Year: 2014

In this paper an intelligent technique for the determination of the oral cancer stages is proposed. Fuzzy If-then rules have been defined which governs the decision of the proposed system and then trained by neural network. The system is then simulated on adaptive neurofuzzy system toolbox and results have been generated. The final results show a training error equal to 0.219, which is very close to the tolerance level. © 2014 IEEE.

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