Now showing items 41-60 of 849

    • Performance analysis of fair schedulers under heterogeneous traffic 

      Changela, Jasankumar R. (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      In this thesis, the role of the packet scheduling discipline has been studied in providing QoS over the Internet. The fairness and scalability requirements expected to be satisfied by the scheduling discipline have been ...
    • Hybrid approach to digital image watermarking using singular value decomposition and spread spectrum 

      Bhandari, Kunal (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      We have seen an explosive growth in digitization of multimedia (image, audio and video) content and data exchange in the Internet. Consequently, digital data owners are able to massively transfer multimedia documents across ...
    • Protecting mobile agents against malicious hosts using trusted computing 

      Panchal, Niravkumar K. (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      The concept of mobile agents was invented about a decade ago. Since then, plenty of innovative applications of mobile agents have been proposed. But it remains to be the fact that these applications have not been deployed ...
    • Dual-band microstrip antenna design 

      Desai, Bhumi (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Multi-frequency microstrip antennas are very much in demand due to their physical and mechanical properties like small size, lightweight, thin profile, low power consumption, and ease of implementation in the domestic ...
    • Selfish routing and network creation games 

      Gandhi, Ratnik (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      This work studies the two important problems of routing and network creation in the situation of selfish behavior of agents. In routing, agents want to send their data from source to destination. They try to reduce cost ...
    • Weblab: a framework for remote laboratories 

      Agrawal, Awkash (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Remote laboratories have been proposed and implemented in the past to address a number of issues, namely wider access to high-end expensive experiments, safety, and better resource utilization. However, the existing projects ...
    • Active contours in action 

      Shah, Pratik P. (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      There was considerable success in converting images into something like line drawings without resorting to any but the most general prior knowledge about smoothness and continuity. That led to the problem of “grouping” ...
    • Contributions to parasitic computing 

      Jain, Rajul (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Internet is a huge connection of networks. To ensure reliable communication on the Internet a layered architecture is used, with various protocols functional at each layer. The way these protocols are used on the Internet, ...
    • Differential geometry and image processing 

      Tatu, Aditya (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      There are various ways of observing and interpreting images. At higher levels of abstraction, one looks at an image as collections of objects, while at the other end it is just a collection of curves and surfaces. We study ...
    • Distributed clustering for heterogeneous wireless sensor network in data gathering applications 

      Saxena, Nischal (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Wireless Sensor networks have revolutionized the paradigm of gathering and processing data in diverse environment such as, wildlife area, kindergarten or agriculture farm. The nodes in these networks usually have a very ...
    • Energy conserving voidless coverage in wireless ad-hoc sensor networks 

      Vege, Hari Kiran (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      For many sensor network applications such as intrusion detection and military surveillance, it is necessary to provide full sensing coverage to a security-sensitive area while at the same time minimizing energy consumption ...
    • Non-uniform information dissemination for performance discovery in computational grids 

      Patel, Dhawal B. (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      The required service in any resource-sharing environments like Grid, Peer-to-Peer etc., is discovery of resources. A resource discovery mechanism returns locations of resources that match the description, given a description ...
    • Novel architecture for a CMOS low noise amplifier at 2.4 GHz 

      Ray, Anuradha (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Radio frequency design has been one of the major research areas in the recent past. Emergence of several Wireless Communication standards has demanded availability of different analog blocks for use in transceivers with ...
    • Optimum network utilization using fortz-thorup method 

      Thomas, Shabu (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Internet traffic has increased over the previous years and there has been a change in traffic requirements due to the emergence of new applications and services. This makes it more challenging for the network service ...
    • Performance evaluation of OFDM technique for high speed communication applications 

      Kabra, Mukul (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      The Internet revolution has created the need for wireless technologies that can deliver data at high speeds in a spectrally efficient manner. However, supporting such high data rates with sufficient robustness to radio ...
    • Performance of MIMO in correlated rayleigh flat fading channels 

      Jain, Alok (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      The recent interest in Multiple Input Multiple Output (MIMO) communication systems was initiated by the theoretical work of Telatar. The development in the field of random matrix theory is the basis of these studies. The ...
    • Protecting structures on heap from buffer overflow vulnerabilities with TIED-LibsafePlus 

      Jain, Abhay (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      In spite of the numerous defenses that have been devised to combat the buffer overflow attack, buffer overflow vulnerability in the C programs still exist as the one widely exploited by the attackers to subsume the privileges ...
    • Representation theory in signal processing: some connections through gap 

      Dixit, Parth (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      This thesis is concerned with the study of some of the recent developments in the area of signal processing that arise from the connections of discrete transforms and their inherent symmetries with the representation theory ...
    • Scheduling in grid: rescheduling MPI applications using a fault-tolerant MPI implementation 

      Reddy, M. Vivekananda (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Due to advancement in grid technologies, resources spread across the globe can be accessed using standard general purpose protocols. Simulations and scientific experiments were earlier restricted due to limited availability ...
    • Acoustic source localization using audio and video sensors 

      Mouli, P. Chandra (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      Problem of localizing an acoustic source using microphone array and video camera is studied. In general, it’s quite obvious that a human with both, eyes and ears can make out things more accurately than to a human who is ...