Infrared-Led based Wireless Data & Voice Communication with Circuit Diagram

For years, infrared LED has been merely a system for piping light around corners and into the inaccessible places to allow the hidden to be lighted. But now, infrared LED has evolved into a system of significantly greater importance and use. Throughout the world, it is now being used to transmit voice, television and data signals as light waves. Its advantages as compared with conventional coaxial cable or twisted wire pairs are manifold. As a result, millions of dollars are being spent to put these light wave communication systems into operation. Continue reading Infrared-Led based Wireless Data & Voice Communication with Circuit Diagram

Scalability of Ad Hoc Dynamic Spectrum Access Networks

Abstract :-

Dynamic Spectrum Access allows wireless users to access a wide range of spectrum which increases a node’s ability to communicate with its neighbors, and spectral efficiency through opportunistic access to licensed bands. Our study focuses on the scalability of network performance, which we define in terms of network transport capacity and end-to-end throughput per node, as the network density increases. Continue reading Scalability of Ad Hoc Dynamic Spectrum Access Networks

Model-Based Approach to Demodulation of Co-Channel MSK Signals

Abstract :-
Co-channel interference limits the capacity of cellular systems, reduces the throughput of wireless local area networks, and is the major hurdle in deployment of high altitude communication platforms. It is also a problem for systems operating in unlicensed bands such as the 2.4 GHz ISM band and for narrow band systems that have been overlaid with spread spectrum systems. Continue reading Model-Based Approach to Demodulation of Co-Channel MSK Signals

ECE Project on Car Alarm System

Abstract :-
The basic control functions for this system include monitoring inputs (such as sensors, push buttons, etc) and controlling output signals (such as sirens, lights, LEDs, etc). These functions are easily implementable in an embedded processor. 4414 Microcontroller is used in this project as it is best suited for security systems Continue reading ECE Project on Car Alarm System

Report on FM Transmitter as a Jammer with Circuit Diagram

Cell phones and radio receivers are used everywhere these days. It’s great to be able to call anyone anytime. But unfortunately, restaurants, movie theatres, concerts, shopping malls and churches all suffer from the spread of cell phones because not all cell-phone users know when to stop talking. While most of us just grumble and move on, some people are actually going to extremes to retaliate. FM Jammer can be one of the solutions to this problem. Continue reading Report on FM Transmitter as a Jammer with Circuit Diagram

A Human Tracking Fan System

Abstract:-

The platform, using dual element Pyroelectric Infrared Sensors (PIR) sensors, rotates itself independently to direct air flow to whatever position a person moves to. In addition, the fan includes another setting that allows precise rotation between two people. These modes are selectable by the user. The running mode is displayed on an LCD. Continue reading A Human Tracking Fan System