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A novel ultra-wideband (UWB) equal power divider using rectangular rings of different impedances on microstrip line is proposed in this paper. It is demonstrated that 3 dB powers splitting from one input port to two output ports is achieved. In addition, good impedance matching at all the three ports and excellent isolation between two output ports are obtained over the specified 3.1–10.6 GHz UWB...
In cloud infrastructure, key should be shared between user and cloud service provider (CSP) to access data in secure way. To accessing data from cloud, user will only be authenticated by CSP but they are not exchanging key among each other. In the same infrastructure to secure the communication lot of methodologies have been proposed which are basically using some methods like digital signature, homomorphic...
Integration of information for providing better usage and productivity is utmost important in todays scenario. Before collecting this information obtained from various modalities we need to align them properly and this process is called as image registration. The entire process of image registration becomes accurate if all the images have been acquainted well and contain relevant information. Registration...
The notable advantages of Filtered-x Least Mean Square (FXLMS) Algorithm over other algorithms in Active Noise Control (ANC) environment are its simple time realization, Low computational complexity, robustness and simplicity though the algorithm has slow convergence. In order to optimize its frequency dependent convergence value, a convergence parameter is used. Thus upon application of this algorithm...
In this paper, we propose a novel technique for brain atlas generation which is based on robust and invariant feature key-points computed on several human brain volumes. 3D scale-invariant feature transform (3D SIFT) has been used for detection and description of the feature key-points. By a Model Based MRI Alignment technique, the search space for key-point matching among different volumes has been...
This paper presents Magnitude Squared coherence(MSC) technique and Support Vector Machines (SVM) using kernel function for the classification of Inferior Myocardial Infarction. The coherence function finds common frequencies between two signals and evaluate the similarity of the two signals. MSC technique uses Welch method for calculating PSD. For the detection of normal and IMI beats, MSC technique...
This paper introduces a hybrid approach to steganography which is based on the least significant bit substitution. It is a standalone steganographic technique that is focused on reducing the changes in the least significant bits of cover image by finding identical matches between image pixel values and message bits. The two least significant bits of cover image are changed only in case when no identical...
Fountain Codes are referred to as a class of rateless codes'41 which efficaciously improves the performance of systems used for wireless data transmission. In this paper, we present a quantitative analysis of Fountain Coded Multiple Input Multiple Output (MIMO) — Orthogonal Frequency Division Multiplexing (OFDM) systems over Rician faded channel. Bit Error Rate (BER) performance evaluation and comparison...
In this paper a new methodology of enhancement of images is well proposed. This method combines two very popular techniques of enhancement i.e. Wavelet decomposition and histogram shifting & shaping. In this we will use this method for enhancement of commercial images and natural images etc. In this algorithm, a original image (gray scale and color image) is first decomposed in its discrete wavelet...
The escalating interest in wireless applications need to the continuous increase channel capacity. So channel capacity has been furthermost challenge for the researchers in the field of wireless communication. Capacity analysis and its improvement have been proposed under various scenarios. However, most of them are based on conventional PDF based techniques, some times which cause to be very complex...
Edge detection is the most important pre-processing step in image processing. In this paper we studied various edge detection methods and different kinds of operators using edge detection. The various edge detection techniques such as Robert, sobel, prewitt, canny are compared with each other. In end a new nature inspired algorithm has been proposed and compared with the traditional operators. We...
An UWB antenna with W-slot on the radiating patch is presented in the paper. The presented antenna is simulated and designed in CST Microwave Studio and its simulated results shows that the antenna gives good impedance bandwidth from 3.30 GHz to 19.03 GHz. In the designed antenna there is two L-shaped slot and one W-slot on the radiating patch and also a boat shaped structure on the ground plane....
This paper deals with the application of the raw ECG signal and best window technique used to design FIR filter by comparing the spectral densities and average power before filtration and after filtration. In this work we have used different ECG databases from Physionet for assessing the quality of the algorithms developed.
Nail-fold capillaries exhibit distinctive features which help in early diagnosis of various anomalies like diabetes. The examination of microcirculation of nail-fold capillaries serves as the window to monitor one's health condition as the changes in nail-fold microcirculation often indicate certain clinical disorders. This way of finding disorders is a less harmful technique. Separation of multiple...
Physicians are motivated to use e-health technology. Use of modern technology enables knowledge extraction which can be used to improve diagnostics and treatment. At present Electronic Patient Record (EPR) are also shared through cloud among hospitals. Protection of EPR is important to protect the ownership particularly when the data is shared with third parties. Digital watermarking is a proven technique...
This study proposes a new algorithm for recovering low-rank matrices from their under-sampled projections. Such algorithms are traditionally based on the Schatten-p (0<p≤1) norm minimization. The minimization problem is solved directly, requiring the computing of a singular value decomposition (SVD) at each iteration. This is time consuming and greatly limits the speed of the algorithms and its...
In this paper, the design, optimization and simulation of a dual-band coaxial-fed H-slot microstrip patch antenna for WiMAX/WLAN application is presented. It operates on 3.6–3.7 GHz and 5.7–5.8 GHz bands. Radiating patch lies on the Teflon substrate which is having low dielectric constant. Coaxial feeding technique is used to feed the antenna with 50 ohm impedance. This proposed antenna enhances the...
This paper presents the FPGA implementation of Narrowband Physical Layer architecture for Wireless Body Area Network (WBAN) based on IEEE 802.15.6-2012 standard. An abstract level hardware implementation of the most matured Narrowband (NB) PHY operating at 2.4 GHz ISM band among the three PHY layers defined by the standard is proposed. Major building blocks of PHY transceiver such as CRC, spreader,...
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