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Realization of FPGA based digital controller
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Field Programmable Gate Array (FPGA) can be used to enhance the efficiency and the flexibility of digital controller. FPGA implementation of digital controllers leads to real time realizations with small size and high ...
Bidding strategies for dynamic spectrum allocation
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Dynamic Spectrum Allocation is the process of assigning spectrum licenses in terms of the chunks of the spectrum band to the Wireless Service Providers (WSPs). This allocation assignment is being done as per the WSPs' ...
Ant colony optimization in routing algorithms of mobile ad hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
The study on performance of On-demand Ant Routing Algorithm for Mobile Ad Hoc Network is done. An ant routing algorithm based on swarm intelligence and especially on Ant Colony Optimization (ACO). It describes a noval on ...
Column decoder for memory redundant cell array
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
As the semiconductor technology advances, the yield of memory chip is reducing. The cause of yield degradation is errors in manufacturing process associated with tight geometries. The thesis work proposes a redundancy ...
Game theory based strategies for cooperation in ad hoc wireless networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
In self-organized ad-hoc wireless networks, nodes belong to different authorities, pursue different goals, have constrains like energy; therefore, cooperation among them cannot be taken for granted. Non cooperation of nodes ...
Lifetime analysis of wireless sensor nodes using queuing models
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Prolonging the lifetime of wireless sensor networks (WSN) is one of the key issues for wireless sensor network applications. For increasing the lifetime of network, each node should conserve its energy. Sensor nodes consume ...
Channel estimation in OFDM systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Orthogonal frequency division multiplexing (OFDM) is not a new concept, but its receiver design has constant improvement. OFDM uses available spectrum efficiently and the system provides high data rates. Many standards ...
Depth from defocus
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
With the recent innovations in 3D technology accurate estimation of depth is very fascinating and challenging problem. In this thesis, a depth estimation algorithm, utilizing Singular Value Decomposition to compute orthogonal ...
Multiresolution fusion of satellite images and super-resolution of hyper-spectral images
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
This thesis presents a model based approach for multi-resolution fusion of the satellite images. Given a high resolution panchromatic (Pan) image and a low spatial but high spectral resolution multi spectral (MS) image ...
Moment based image segmentation
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Usually, digital image of scene is not same as actual; it may degrade because of environment, camera focus, lightening conditions, etc. Segmentation is the key step before performing other operations like description, ...