Electrocardiogram (ECG) provides the diagnostic information about the depolarization and the relaxation activities of heart chambers. This diagnostic information is captured using morphological features (amplitude, duration ...
The thesis explores some new strategies for cooperative and multi‐band spectrum sensing. The primary focus in this research work is on improving the performance of cooperative spectrum sensing (CSS) in the absence of ...
This thesis aims towards the development of an objective method for the assessment of hypernasality in cleft palate speech based on the spectral analysis of speech. The proposed method is based on the detection and severity ...
An unconstrained, writer-independent, large vocabulary online handwritten word recognition system can be developed by modeling the basic recognition unit of the script. The basic recognition unit or the basic unit for ...
Skin detection is an important step in various image processing and vision-based Human-Computer Interaction (HCI) applications. It is the process of finding skin-coloured pixels and regions in an image or a video. The major ...
Power has become imperative to the design closure in today’s ultra-low submicron design. The ongoing trends in technology scaling imply to design fast and power efficient circuits. Further, the performance and reliability ...
In this thesis, we propose a number of online signature verification systems, in line with DTW based approach. We see that such systems in literature perform a temporal alignment between the feature vectors that are derived ...
Graphene-based transistors are being explored extensively, and are now considered as a promising candidate for post-silicon electronics. However, the absence of the energy gap in graphene sheet is proved to be a major ...
Conventionally, the intelligibility of cleft lip and palate (CLP) speech is evaluated using the auditory-perceptual based subjective method by speech-language pathologists (SLPs). This method is considered as the gold ...
In this thesis, we propose a few algorithms in the area of lattice-based cryptography. Lattice based cryptography is the construction of cryptographic algorithms the security of which, can be based on the conjectured ...
A sequence generated by a deterministic algorithm is called a pseudorandom sequence if it satisfies statistical properties similar to a truly random sequence. Such sequences arise in many applications starting from key ...
We consider a communication problem over a directed acyclic network where information is generated at certain nodes (sources), and certain nodes (terminals) require the information generated at a subset of the sources. If ...
Silicon integrated passive devices have been gaining importance with the need to integrate more functionalities on a single chip to realize the complex systems on chip. .....
A perceptual hash function for video extracts a Dxed-length binary string called the perceptual hash on the basis of the perceptual content of the video. Besides being sensitive to the content diDerences in videos, a ...
In the thesis, performance analysis of three-node decode-and-forward (DF) relay systems comprising a single source node, a single relay node and a single destination node is presented. Each node is equipped with a single ...
Performance of diversity receivers over various slow and fading channels is analyzed. The classical PDF based approach has been followed to derive the performance measures of three basic diversity combiners namely Selection ...
Signals transmitted through wireless medium undergo several distortion due to various atmospheric effects. As a result, received several copies of the original signal with random attenuation and phases causes the net ...
It is well known that multiple input multiple output (MIMO) systems improve transmission capacities and performance of wireless systems. But, with the increasing number of antennas, the required computation for detection ...
In cognitive radio, the transmitter behavior adapts according to the information about the surroundings in which it operates, thereby enhancing the spectrum utilization. Based on the available information, the spectrum-monitor ...
Metamaterials are new artificial materials with unusual electromagnetic properties, not commonly found in nature. All natural materials have positive magnetic permeability and electric permittivity. In contrast, in ...