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Now showing items 11-20 of 42
Embedding binary trees and caterpillars into the hypercube
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Embedding graphs is an important and well-studied theory in parallel computing. Finding the embedding of trees into hypercubes is an important, interesting and difficult problem. This work studies the embedding of binary ...
Network coding based multicast in delay tolerant networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Delay Tolerant Networks (DTN) are sparse ad hoc networks in which no contemporaneous path exists between source and destination most of the time. In DTN, connectivity graph of the network changes over time either due to ...
Adaptive biased switched capacitor filters
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
The demand from today’s handheld devices, such as laptop, ipod, cellphones is to have a long battery life with no compromises in speed. The devices dissipate power even in standby mode also. Op-amp is a major block in all ...
Application of BTrees in data mining
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
As massive amount of information are becoming available electronically, techniques for making the decision to analyze statistics on the large dataset are tending to be very complex. Making of such a decision requires more ...
Collaborative filtering approach with decision tree technique
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Rapid advances in data collection and storage technology has enabled organizations (especially e-commerce) to accumulate vast amounts of data. The amount of data kept in computer files and databases is growing at a phenomenal ...
Design of a CMOS variable gain amplifier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
In advanced CMOS technologies as device dimensions are decreasing, requirement for lower supply voltages are increasing to make certain device reliability. So, challenges for analog circuit designers are to discover new ...
Design of a high speed I/O buffer
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
In high speed serial transmission of data, output buffer creates the bottleneck. Current Mode Logic (CML) buffers have gained wide acceptance in most high speed serial interfaces as they reach speed of the order of Gbp/s. ...
Design of voltage reference circuits
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Shrinking device dimensions in advancing CMOS technologies require lower supply voltages to ensure device reliability. As a result, analog circuit designers are faced with many challenges in finding new ways to build analog ...
Effect of channel asymmetry on reputation based cooperation mechanisms in mobile ad-hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Enforced cooperation among MANET nodes is an active research issue. In applications, where the users have different goals and there is no central authority to control them, users may become selfish. These nodes may not ...
Efficient ASIC implementation of advanced encryption standard
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
In spite of the many defense techniques, software vulnerabilities like buffer overflow, format string vulnerability and integer vulnerability is still exploited by attackers. These software vulnerabilities arise due to ...