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Object location in cluster based mobile ad hoc networks

Object location in cluster based mobile ad hoc networks

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作者： Hamsavath, Prasad Naik Singh, G.V. Dhurandher, Sanjay K. School of Computer and System Sciences Jawaharlal Nehru University New Delhi India Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India

ISBN: (纸本)9783642122132

Object location Services (OLS) in MANET is a challenging issue due to limitation of the applications of MANET such as bandwidth, mobility, battery power, memory etc., For more significance and efficient results we have worked out on the clustering architecture for location services in MANET. We brief in this paper about location services in MANET. Due to frequent mobility of the mobile hosts the physical topology of the network continuously changes as result frequent link breaks of existing paths. The absence of any centralized, dedicated servers to maintain the location information of the mobile hosts in Mobile ad-hoc networks is a challenging issue. Therefore location management becomes an important issue. Location management refers to updating and searching the "whereabouts" of mobile nodes in a network. The proposed algorithm for object location in MANET using clustering has shown effective and better results when comparing with the very well known location protocol that is GLS (Grid Location Services). The algorithm also registers and updates the location information of mobile nodes as well as searches their current location in ClusterHead tables. The simulation results show that lesser overhead cost of object location and better throughput are achieved when using the clustering methodologies by implementing a mechanism to track the location of other Mobile nodes (MN) in the network topology. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Mobile ad hoc networks

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Palm print recognition using local binary pattern operator and support vector machines

Palm print recognition using local binary pattern operator a...

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3rd IEEE International Conference on Signal and Image Processing, ICSIP 2010

作者： Hanmandlu, M. Gureja, Ankit Jain, Ankur Department of Electrical Engineering IIT Delhi India Department of Electronics and Communication FET Jamia Millia Islamia New Delhi India Department of Computer Engineering Netaji Subhas Institute of Technology New Delhi India

ISBN: (纸本)9781424485949

This paper presents a novel technique of obtaining the Region of Interest (ROI) which is square-shaped. After palm print segmentation, we perform texture feature extraction using Local Binary Pattern (LBP) based on the directional gradient response. With the feature vectors so obtained we perform matching using Support vector machines (SVM) and also using the Chi-square distance measurement. The experimental results presented in this paper show significant improvement in the performance of the biometric system with a combination of LBP and SVM. ©2010 IEEE.

关键词： Support vector machines

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QFT based robust controller for single-phase AC-AC buck converter

QFT based robust controller for single-phase AC-AC buck conv...

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International Conference on Industrial Electronics, Control & Robotics (IECR)

作者： Bherulal Yogesh V. Hote J. R. P. Gupta Division of Instrumentation and Control Engineering Netaji Subhas Institute of Technology University of Delhi Delhi India Division of Instrumentation and Control Engineering Netaji Subhas Institute of Technology University of Delhi New Delhi India

In this paper, Quantitative Feedback Theory (QFT) based robust controller for AC-AC buck converter is proposed whose transfer function involves complex load term. The proposed design would give the robust control action against the uncertainty in the parameters of AC-AC buck converter and the desired specifications bound. The proposed design is illustrated using QFT-Terasoft toolbox.

关键词： Industrial electronics Service robots Conferences Robustness

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Friend-based secure routing through challenges in mobile ad hoc networks

Friend-based secure routing through challenges in mobile ad ...

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作者： Dhurandher, Sanjay K. Obaidat, Mohammad S. Verma, Karan Gupta, Pushkar Dhurandher, Pravina 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 Karnataka State Open University Mysore Karnataka India

ISBN: (纸本)9781565553415

This paper proposes a Friend-based security scheme for efficient routing in mobile networks. The idea behind this technique is the establishment of friend networks in the same way as the formation of friends in real life scenarios. The algorithm provides authentication of nodes by sending challenges and creating friend lists of nodes that complete the challenge. Friends are rated on the basis of the amount of data they transfer through themselves and according to the rating of other friends, which is obtained during the friend list sharing process. The data is finally routed through the route with the greatest number of trusted friends. One of the greatest advantages of this technique is that the nodes do not need to work in the promiscuous mode. The information about the malicious nodes is gathered effectively by using challenges. This reduces the overhead on the network significantly. Through various simulation experiments it has been found that the proposed algorithm works very efficiently in terms of detecting the malicious nodes and also allowing lesser number of packets to be routed through these detected malicious nodes.

关键词： Mobile ad hoc networks

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An Efficient and Secure Routing Protocol for Wireless Sensor Networks Using Multicasting

An Efficient and Secure Routing Protocol for Wireless Sensor...

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IEEE/ACM Int'l Conference on & Int'l Conference on Cyber, Physical and Social Computing (CPSCom) Green Computing and Communications (GreenCom)

作者： Sanjay K. Dhurandher Mohammad S. Obaidat Gaurav Jain Isha Mani Ganesh Vinay Shashidhar CAITFS Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Computer Science & Software Engineering Monmouth University NJ USA Division of Computer Engineering Netaji Subhas Institute of Technology University of Delhi New Delhi India

Recent technological advancements in the field of nanotechnology have increased the computation power of the wireless nodes while adhering to the energy constraints. This has made the use of the Wireless Sensor Networks (WSNs), more widespread, used in applications such as area monitoring, industrial monitoring, vehicle detection or military monitoring. Sensor nodes have made it possible to collect data even in hostile environments, but because of the severe security and energy constraints faced by sensor networks, their deployment on a large scale is still a tricky job. A secure energy efficient routing algorithm is thus the need of the hour. SPIN, Sensor Protocol for Information via Negotiation, is one of the widely used energy efficient routing protocol in WSNs that completely ignores the security aspect. This paper involves proposing an alternate routing protocol, MS-SPIN, which incorporates the best features of SPIN while also addressing the security issue. The implementation of MS-SPIN in NS2 has shown that, for a larger number of nodes, its energy performance characteristics are comparable to those of SPIN while providing security features.

关键词： IP networks Wireless sensor networks Routing Security Routing protocols Energy efficiency

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Performance Analysis of Coded Cooperation under Nakagami-m Fading Channels

Performance Analysis of Coded Cooperation under Nakagami-m F...

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IEEE International Conference on Communications (ICC)

作者： A. Bansal P. Garg Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology New Delhi India

In this paper the performance of coded cooperation has been analyzed for independent flat Nakagami-m fading channels. The outage behavior of the cooperative system has been presented and analyzed with two instantaneous variable (i.e. one with instantaneous Signal to noise ratio (SNR) and other with instantaneous received power). Finally we have presented an analytical approach to calculate the critical cooperation ratio. This gives the value of cooperation ratio (α) at which the total outage probability is minimum.

关键词： Performance analysis Fading Signal to noise ratio Probability Communications Society Transmitting antennas Transmitters Statistics Power system modeling Decoding

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Bandwidth extension of a CMOS constant Q active

Bandwidth extension of a CMOS constant Q active

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International Conference on computer and Communication technology (ICCCT)

作者： Astha Neekhra Maneesha Gupta Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology New Delhi India

In this paper, CMOS active inductor with extended bandwidth using a compensation resistor is presented. This active inductor is used as an active component in the designing of bandpass filter. Moreover, the quality factor of the CMOS active inductor is almost independent of signal swing. The bandwidth of the active inductor is increased from 19 MHz to 60 MHz with resonant frequency f 0 =148.59 MHz. Simulation is done using SPICE, 0.5μm CMOS technology.

关键词： Active inductors Band pass filters Bandwidth CMOS integrated circuits Q factor Equations RLC circuits

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MPEG-2 video watermarking using quantization index modulation

MPEG-2 video watermarking using quantization index modulatio...

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International Conference on Internet Multimedia Services Architecture and Applications, IMSAA

作者： Jyotsna Singh Abhinav Dubey Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology New Delhi India

Several video watermarking schemes have been proposed in recent years, but most of them are applied to uncompressed video. In this paper, a compressed video watermarking procedure is proposed to reduce the number of computations. In a video frame, luminance component contains more crucial information than chrominance. Also P-frames appear more frequently in the compressed video and therefore have higher watermark hiding capacity. In MPEG videos, the direct coefficient (DC) of chroma discrete cosine transform (DCT) in P frame of video is a parameter which always exists in video streams and has a high robustness. The proposed algorithm embeds the watermark data in DC component of chroma DCT of video P frames using QIM. The quality and robustness of watermarked video is evaluated under various attacks.

关键词： Watermarking Quantization Discrete cosine transforms Transform coding Streaming media Bit error rate Indexes

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Wireless sensor networks for monitoring the environmental activities

Wireless sensor networks for monitoring the environmental ac...

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IEEE International Conference on Computational Intelligence and Computing Research

作者： Ruchi Mittal M. P. S Bhatia Department of Computer Science and Engineering Netaji Subhas Institute of Technology New Delhi India

The area of sensor network has a long history and many kind of sensor devices are used in various real life applications. Here, we introduce Wireless sensor network which when combine with other areas then plays an important role in analyzing the data of forest temperature, bioinformatics, water contamination, traffic control, telecommunication etc. Due to the advancement in the area of wireless sensor network and their ability to generate large amount of spatial/temporal data, always attract researchers for applying data mining techniques and getting interesting results. Wireless sensor networks in monitoring the environmental activities grows and this attract greater interest and challenge for finding out the patterns from large amount of spatial/temporal datasets. These datasets are generated by sensor nodes which are deployed in some tropical regions or from some wearable sensor nodes which are attached with wild animals in wild life centuries. Sensor networks generate continuous stream of data over time. So, Data mining techniques always plays a vital role for extracting the knowledge form large wireless sensor network data. In this paper, we present the detection of sensor data irregularities, Sensor data clustering, Pattern matching and their interesting results and with these results we can analyze the sensor node data in different ways.

关键词： Data mining Wireless sensor networks Temperature measurement Temperature distribution Monitoring Temperature sensors Pattern matching

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A reactive Optimized Link State Routing protocol for Mobile ad hoc networks

A reactive Optimized Link State Routing protocol for Mobile ...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： Sanjay K. Dhurandher Mohammad S. Obaidat Mukta Gupta CAITFS Division of IT Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of CS & SE Monmouth University NJ USA Division of Computer Engineering Netaji Subhas Institute of Technology University of Delhi New Delhi India

Major constraints to be kept in mind while designing a routing protocol for ad hoc networks are battery power consumption, congestion control, time delay and the transmission range of the nodes. In this paper, we aim to develop an energy efficient and angular routing protocol, named Efficient Reactive and Angular - Optimized Link State Routing (ERA-OLSR). ERA-OLSR is an enhanced protocol designed over the well known Optimized Link State Routing (OLSR). ERA-OLSR is a reactive protocol which omits the use of routing table from OLSR and decides the next hop on the basis of angular concept. The proposed protocol has been compared with well established reactive protocols namely Ad-hoc On Demand Distance Vector Routing (AODV) and Dynamic Source Routing (DSR). The results achieved after implementing the proposed protocol establishes the fact that ERA-OLSR shows a better performance than both AODV and DSR in terms of End-to-end delay and Average Energy Consumption during the simulation.

关键词： Mobile computing Ad hoc networks Earth Routing protocols

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