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Now showing items 151-160 of 212
Performance evaluation of OFDM technique for high speed communication applications
(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
(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 ...
Queueing-theoretic framework for perfermance analysis of mobile ad hoc networks with finite buffer nodes
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Wireless Ad Hoc network is a decentralized wireless network which allows nodes to join and create networks without any infrastructure. These kinds of networks are advantageous because they can be readily deployed anywhere, ...
Protecting structures on heap from buffer overflow vulnerabilities with TIED-LibsafePlus
(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 ...
Receiver amplifier design using CMOS current feedback amplifier and current conveyors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
In the world of high-speed communications, systems involving high-speed data transfer require circuits with innovative features for good performance in terms of speed and power consumption. These data transfer systems ...
Representation theory in signal processing: some connections through gap
(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
(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 ...
Self-calibrating technique for digital-to-analog converter in successive approximation register analog-to-digital converter
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Successive Approximation Register (SAR) analog to digital converter resolution is limited mainly by the capacitor ratio error; comparator offset voltage and capacitor voltage dependence error. A SAR ADC resolution is limited ...
Service selection using WS-agreement
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
The business requirements are dynamic in nature and identification of suitable busi- ness partners "on demand", who can satisfy a set of guarantees is a critical process. Selection of business partners is influenced by ...
Space-time coding techniques for multiple antenna communications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
Mobile communications has seen an explosive growth in the past decade. The reason for this growth can be traced to the increasing demand by the consumers for communication systems capable of exchanging information “anytime, ...