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Optimizing energy using probabilistic routing in Underwater Sensor Network

Optimizing energy using probabilistic routing in Underwater ...

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2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SIMULTECH 2012

作者： Dhurandher, Sanjay K. Obaidat, Mohammad S. Gupta, Abhishek Gupta, Prateek Goel, Siddharth Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Computer Science and Software Engineering Monmouth University NJ United States

ISBN: (纸本)9789898565204

As the Importance of Applications, Such as Ocean Sampling, Environmental Monitoring, Disaster Prevention, and Distributed Tactical Surveillance, Has Recently Grown, the Need for Underwater Communication Has Become More Pronounced. unlike Terrestrial Sensor Networks, Underwater Sensor Networks (Uwsns) Have Different Characteristics Such as a Long Propagation Delay, a Narrow Bandwidth and High Packet *** the Various Challenges Posed by the Underwater Environment, a Routing Algorithm Has Been Proposed in This Paper. the Algorithm Consists of Special Features, including Three Different Types of Nodes in the Architecture Proposed, a Mathematical Formula in Order to Select the next Node to Be Used for Transmission. the Major Aim of the Algorithm Is to Select the next Node to Be Used for Successful Data Delivery, and Ensure Minimum Energy Consumption. the next Node Is Chosen With Utmost Care in Order to Increase the Probability of Successful Data Delivery. the Packet Is Transferred from the Source to the Sub-Destination by Exploiting Minimum Energy of the Nodes. the Simulation Studies for the Protocol Were Conducted using AQUA-GLOMO Network Simulator. the Protocol Was Benchmarked With DSR Routing Protocol. the Matrices That Were Considered for the Simulation Study Were Throughput, PDR, Energy Consumption and Delay and It Was Observed That Our Proposed Model Performed Better in the Underwater Environment.

关键词： Sensor networks

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A novel scheme to hide identity information in mobile captured images

A novel scheme to hide identity information in mobile captur...

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2nd International Conference on computer Science, engineering and Applications, ICCSEA 2012

作者： Gupta, Anand Dadlani, Ashita Malhotra, Rohit Bansal, Yatharth Division of Computer Engineering Netaji Subash Institute of Technology Dwarka New Delhi India Division of Information Technology Netaji Subash Institute of Technology Dwarka New Delhi India

ISBN: (纸本)9783642301568

A new research area concerning the application of steganography for hiding source identity information in mobile camera captured images is emerging. The work reported so far is focused on using MMS [Multimedia Messaging Service] and SMS [Short Message Service] as carrier media for covert communication and data security. The techniques employed for data hiding are lacking in a suitable combination of cryptography and steganography. The present paper proposes a novel scheme to hide source identity information (IMEI [International Mobile Equipment Identity] and IMSI [International Mobile Subscriber Identity] numbers) in mobile camera captured images. To achieve this, an application is developed that clicks images through mobile camera and hides IMEI and IMSI numbers in raw images before compressing them in PNG [Portable Network Graphics] format. The application encrypts the IMEI and IMSI numbers before hiding them. It uses a custom made key based algorithm for hiding these numbers randomly inside an image which ensures high security of hidden data. Runtime performance analysis of the above technique reveals that the computational lag due to encryption & steganography is miniscule. The technique is found feasible to run on actual mobile devices and can help identify the source of an anonymous mobile captured image. © 2012 Springer-Verlag GmbH.

关键词： Cryptography

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Diameter restricted fault tolerant network design

Diameter restricted fault tolerant network design

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3rd International Conference on Advances in Communication, Network, and Computing, CNC 2012

作者： Saxena, P.C. Sabharwal, Sangeeta Maneesha Jawaharlal Nehru University School of Computer and Systems Sciences Delhi 110067 India Netaji Subhas Institute of Technology Division of Computer Science Delhi 110075 India

ISBN: (纸本)9783642356148

Low transmission delay, high fault tolerance and low design cost are the three main properties of any network which are best described by its topology. Transmission delay can be decreased by restricting the diameter of the network. Very few methods in literature have considered the importance of the diameter of the network to decrease the transmission delay. Fault tolerance in the network depends on the number of disjoint paths between a node pair. Designing a k-connected fault tolerant network subject to connectivity and diameter constraint at minimal cost is a NP hard problem. In this paper, an efficient constructive heuristic algorithm is proposed for designing a k-connected network while optimizing the cost of the network subject to the connectivity and diameter constraints. Diameter of resultant network would be of two links regardless of network size to get the speed comparable to complete connected network at low cost. Effectiveness of the proposed approach is also evaluated using different examples. © 2012 ICST institute for computer Science, Social Informatics and Telecommunications engineering.

关键词： Fault tolerance

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Design of fractional order digital differentiator using inverse multiquadric radial basis function 1

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2nd International Conference on computer Science and Information technology, CCSIT 2012

作者： Kumar, Nitin Rawat, Tarun Kumar Digital Signal Processing Group Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology Dwarka Sector 3 New Delhi 110075 India

ISBN: (数字)9783642273087

ISBN: (纸本)9783642273070

In this paper, a fractional order digital differentiator is designed by using Inverse multiquadric radial basis function (RBF). First, the RBF interpolation approach is described. Then, the non-integer delay sample estimation is derived by using RBF approach. Next, the Grünwald-Letnikov derivative and non-integer delay sample delay are applied to obtain the transfer function of the proposed method i.e. fractional order digital differentiator. The design accuracy of the proposed method is better then the conventional methods like examples Time domain least squares method, Fractional sample delay method and Frequency response approximation method. © institute for computer Sciences, Social Informatics and Telecommunications engineering 2012.

关键词： Frequency response

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Preventing packet dropping and message tampering attacks on AODV-based Mobile Ad Hoc Networks

Preventing packet dropping and message tampering attacks on ...

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2012 International Conference on computer, Information and Telecommunication Systems, CITS 2012

作者： Obaidat, Mohammad S. Woungang, Isaac Dhurandher, Sanjay Kumar Koo, Vincent Department of Computer Science and Software Engineering Monmouth University West Long Branch NJ 07764 United States Department of Computer Science Ryerson University Toronto ON Canada Division of Information Technology Netaji Subhas Institute of Technology University of Delhi India

ISBN: (纸本)9781467315500

Due to recent advances in mobile wireless communication and computing technologies, Mobile Ad hoc Networks (MANETs) have become the network of choice for use in various applications. But this advantage comes with serious security concerns, in particular from a wireless transmission medium perspective where such networks may be subject to data tampering and dropping attacks. This paper enhances a recently proposed AODV-based protocol named Highly Secured Approach against Attacks on MANETs (HSAM) that deals with this issue in at least two ways: (a) by performing for the first time a simulation study of the HSAM protocol;(b) by introducing a more efficient approach to securing the routes in the route selection phase of the HSAM scheme. Simulation results are provided, showing that the proposed enhanced HSAM scheme (so-called E-HSAM) outperforms HSAM in terms of packet delivery ratio, throughput rate, and number of broken links;chosen as performance metrics, when malicious nodes are present in the network. © 2012 IEEE.

关键词： Mobile ad hoc networks

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Conception of Simulating Grounded Negative Inductor and Implementation Using Operational Transconductance Amplifiers

Conception of Simulating Grounded Negative Inductor and Impl...

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International Symposium on Communications and Information Technologies

作者： Adisorn Kwawsibsam Abhirup Lahiri Winai Jaikla College of Integrated Science and Technology Rajamangala University of Technology Lanna Chiangmai 50220 Thailand Division of Electronics and Communications Netaji Subhas Institute of Technology Delhi India. Department of Engineering Eductaion Faculty of Industrial Education King Mongkut's Institute of Technology Ladkrabang Bangkok 10520 Thailand

ISBN: (纸本)9781467355797

This paper presents a novel realization of a grounded negative inductor simulator (NIS). The conception of creating grounded NIS is discussed and then a possible circuit realization using operational transconductance amplifier (OTA) is provided. The proposed circuit realization employs only two OTAs, one voltage summing circuit and three capacitors. PSPICE simulations have validated the workability of the proposed NIS in the operating frequency of 10kHz to 10MHz.

关键词： Grounded negative inductor simulators active building block (ABB) current-feedback operational amplifier (CFOA)

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Control of 2-DOF robotic manipulator using brushless DC motor to track the motion of object in a plane

Control of 2-DOF robotic manipulator using brushless DC moto...

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India International Conference on Power Electronics (IICPE)

作者： Deepak Saini Prerna Gaur Division of Instrumentation and Control Engineering Netaji Subhas Institute of Technology New Delhi India

ISBN: (纸本)9781467309318

In this paper, a 2-DOF robotic manipulator is controlled to track the motion of object in a plane using brushless DC motor as an actuator. Two brushless DC motor are used to actuate the each of two revolute joints of the 2-DOF robotic manipulator. To control the angular position of robotic arm fuzzy PD controller is used. To generate the Smooth trajectory for joint angle of robotic manipulator, cubic polynomial equation is used. The link lengths for two links and time for tracking is specified. It is shown that the end-effector of the manipulator reaches from initial to final co-ordinate of the object in specified time.

关键词： Mathematical model Manipulators Brushless DC motors Equations Trajectory Kinematics

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Software complexity: A fuzzy logic approach

Software complexity: A fuzzy logic approach

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International Conference on Communication, Information & Computing technology

作者： Sangeeta Sabharwal Ritu Sibal Preeti Kaur Department of Computer Engineering and Information Technology Netaji Subhas Institute of Technology New Delhi India

Software complexity is one of the important quality attribute and predicting complexity is a difficult task for software engineers. Current measures can be used to compute complexity but these methods are not sufficient. New methods or paradigms are being searched for predicting complexity because complexity prediction can help us in estimating many other quality attributes like testability and maintainability. The main goal of this paper is to explore the role of new paradigms like fuzzy logic in complexity prediction. In this paper we have proposed a fuzzy logic based approach to predict software complexity.

关键词： Complexity theory Software Fuzzy logic Pragmatics Measurement computers Testing

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Error analysis of power efficient cooperation with multiple relays in Nakagami-m fading

Error analysis of power efficient cooperation with multiple ...

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IEEE India Conference (INDICON)

作者： Prabhat Kumar Sharma Parul Garg Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology New Delhi India

In this paper we obtain the symbol error rate performance of amplify and forward relaying for independent, flat Nakagami-m fading channels, using moment generating function (MGF) of total received power at destination. We obtain upper bound on average symbol error probability, and verify the results with computer based simulations. Our analysis is generalized as we consider multiple relays and generalized fading environment. We propose a power efficient transmission mechanism in which the overall transmitted power from source and relays is kept to be constant, and independent of number of relays.

关键词： Relays Upper bound Fading Error analysis Computational modeling Numerical models Power distribution

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Effect of cryogenically treated electrode during AEDM of nickel based super alloy 718 for surface quality improvement

Effect of cryogenically treated electrode during AEDM of nic...

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20th International Symposium on Processing and Fabrication of Advanced Materials, PFAM XX

作者： Kumar, Anil Maheshwari, Sachin Sharma, Chitra Department of Mechanical Engineering Beant College of Engineering and Technology Gurdaspur Punjab India University School of Engineering and Technology GGSIPU Delhi India Division of Manufacturing Process and Automation Engineering Netaji Subhas Institute of Technology Dwarka New Delhi India Department of Mechanical and Automation Engineering IGIT Kashmere Gate Delhi India

ISBN: (纸本)9783037853160

In this experimental study attempt has been made to realize potential of cryogenic treatment in enhancing surface quality with fine aluminum and graphite additives powders in AEDM of nickel based super alloy Inconel 718. L 36 (23×36) Orthogonal Array has been selected to conduct and analyze experiments based on Taguchi methodology. Polarity, peak current, pulse on time, duty cycle, gap voltage, retract distance, concentration of fine aluminum and graphite powder added into the dielectric fluid are chosen as input process variables to study performance in terms of surface roughness (SR) using copper and deep cryogenically treated copper electrode. It is found experimentally that deep cryogenically treated copper electrode with addition of 6g/l graphite powder improves surface roughness appreciably. The same has been supported by SEM analysis of the machined surface.

关键词： Surface roughness

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