WSN means for Wireless Sensor Network. WSN consists of a large number of nodes which communicates together through sensing and by monitoring the physical world. There are many application of WSN. In this paper, different protocol of WSN has been discussed, the analysis has shown that the most of the presented technique has abandoned the ...

This Mobile Ad hoc NETworks (MANETs) is gaining importance because of their flexibility, mobility and ability to work with a limited infrastructure. In multi-hop wireless network, proper utilization of battery power is very much necessary to maintain network connectivity. In order to overcome the network from inefficient routing problem, this paper presents different energy efficient ...

Dynamic Bandwidth Allocation (DBA) in passive optical networks presents a key issue for providing efficient and fair utilization of the PON upstream bandwidth while supporting the QoS (Quality-of-Service) requirements of different traffic classes. In this paper, the authors compare the typical characteristics of DBA, such as bandwidth utilization, delay and jitter at different traffic loads, ...

The traditional user of scientific computing prefers to use well proven routines that are recognized by the international scientific community. Among the well-known collections are IMSL, NAG and LINPACK. However, a direct solution method should be used in the case of dense non-structured matrices. If, in addition the co-efficient and the right hand side are ...

The Fast Fourier Transform (FFT) and Inverse Fast Fourier Transform (IFFT) play vital role in signal processing. It is often used in many communication systems. The proposed paper produces realization of N – bit FFT processor using Radix-4 algorithm. Radix-4 FFT processors have 3N/4 log4N complex multiplications and 3N log4N complex additions. N-bit processor contain ...

The global electrical energy consumption is steadily rising and consequently there is a demand to increase the power generation capacity. A significant percentage of the required capacity increase can be based on renewable energy sources. The need for a cleaner environment and the continuous increase in power demand makes renewable energy production, like solar and ...

Stuttering is a speech disorder which is affecting millions of people in their day-to-day life. Stuttering is a complex speech problem which affects the verbal communication. A mobile robot is built, which can be controlled by the user by employing the voice commands such as, ‘Run’, ‘Stop’, ‘Left’, ‘Right’ and ‘Backward’ issued by the user. ...

Over the last two decades Free-Space Optical communication (FSO) has become more and more interesting as an adjunct or alternative to radio frequency communication. In this paper, performance of Free Space Optical (FSO) communication in the presence of atmospheric turbulence is presented. FSO system required free line of sight between the transmitter and receiver. Light ...

Voltage sag caused by the short circuit fault in transmission and distribution line. In this paper, voltage sag due to power system faults such as three-phase-to-ground, single-phase-to-ground, phase-to-phase and two-phase-to-ground are created in transmission line model for generation of different types of voltage sag. This paper describes a methodology for voltage sag generation using Matlab/Simulink. ...

In this paper, the authors focused on modelling and simulation of grid connected photovoltaic system. This paper presents a fuzzy logic control based maximum power point tracking approach to enhance the efficiency and robustness of the solar PhotoVoltaic (PV) power generation and establishes a dynamic model of grid-connected PV system by Matlab/Simulink environment which reflect ...