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Channel estimation and soft OSIC detection in coherent MIMO-OFDM systems using QRD techniques(802.16m)
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
Next generation mobile systems will use multiple antennas at the transmitter and receiver to achieve higher capacity and diversity gain at high speeds. By transmitting through multiple transmitting and receiving antennas, ...
Adaptive channel estimation and loading for OFDM based two-way relay systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
In this thesis we introduce a low complexity Recursive Least Square (RLS) based Orthogonal Frequency Division Multiplexing (OFDM) channel estimation for two-way relay system. Using the estimate of the channel, a bit and ...
Coordinated adaptive power management (CAPM) technique for sensor network nodes
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
Small size of wireless sensor nodes limit the size of the battery supported on it which directly limits the capacity of the battery and lifetime of the sensor nodes. Though energy scavenging is one of the solutions, it is ...
Broadband microstrip antennas with switchable polarizations
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Microstrip antenna consists of a patch of metallization on grounded substrate. These are low profile, lightweight antennas, most suitable for aerospace and mobile application. They are replacing many conventional antennas ...
Algebraic approach to Nash equilibria for finite normal form games
(Dhirubhai Ambani Institute of Information and Communication Technology, 2011)
In this work we consider methods for computing Nash equilibria of finite normal form games that emphasize use of polynomial algebra. Nash equilibria of a game can be characterized as solutions to a system of polynomial ...
New techniques for spatial resolution enhancement of hyperspectral images
(Dhirubhai Ambani Institute of Information and Communication Technology, 2014)
Vision plays a central role for human perception and interpretation of the world. With the beginning of the space age during late 1950s presented opportunities for remote sensing of earth resources [1]. Multispectral sensors ...
Design automation of analog to digital converters based on geometric programming
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
The trend towards digital processing of analog signals in an increasing number of application fields has stimulated significant research efforts in the area of data converters implemented in CMOS technologies. Designing ...
On curve reconstruction in Riemannian Manifolds: ordering motion frames
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
In this work we generalize the computational geometric curve reconstruction approach to curves embedded in Riemannian manifolds. We prove that the minimum spanning tree, given a sufficiently dense sample, correctly ...
Techniques for denoising brain magnetic resonance images
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
Advances in the computational science joined medical imaging domain to help humanity. It offers great support in clinical practices where automatic Computer Added Systems (CAD) help in identification and localization of ...
Some new methods for multi-resolution image fusion
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
It is always an interest of a mankind to explore the various resources of the earth such as minerals, agriculture, forestry, geology, ocean etc., Before the invention of the remote sensing, in order to analyze the various ...