DESIGN AND IMPLEMENTATION OF DIGITAL AUDIO BROADCASTING TRANSMITTER AND RECEIVER USING RAYLEIGH FADING CHANNEL

Design and Implementation of Digital Audio Broadcasting Transmitter and Receiver Using Rayleigh Fading Channel

In this paper, we proposed to implement the Digital Audio Broadcasting-(DAB) Transmitter and receiver part. The main problem in frequency modulation is multipath fading and ISI. To solve this problem we proposed the use of DAB with OFDM system. A matlab-simulink model is designed for DAB. The well defined radio equipment designed to broadcast the radio stations provide high-class data and audio...

Receiver Diversity Combining Using Evolutionary Algorithms in Rayleigh Fading Channel

In diversity combining at the receiver, the output signal-to-noise ratio (SNR) is often maximized by using the maximal ratio combining (MRC) provided that the channel is perfectly estimated at the receiver. However, channel estimation is rarely perfect in practice, which results in deteriorating the system performance. In this paper, an imperialistic competitive algorithm (ICA) is proposed and ...

CDMA Transmitter and Receiver Implementation Using FPGA

Code Division Multiple Access (CDMA) is a spread spectrum technique that uses neither frequency channels nor time slots. With CDMA, the narrow band message (typically digitized voice data) is multiplied by a large bandwidth signal that is a pseudo random noise code (PN code). All users in a CDMA system use the same frequency band and transmit simultaneously. The transmitted signal is recovered ...

Analysis and Simulation of Rayleigh Fading Channel in Digital Communication

The objective of this paper is to analyze slow, flat, Rayleigh fading channels in modern digital communication systems having different coherent modulation techniques. Most of the packages can only be used to analyze analog communication systems, but modern systems are, increasingly, digital. Improved many-on-many (IMOM) is a two-dimensional, graphical-oriented, radio frequency modeling tool is...

Design and implementation of transmitter and receiver filters with periodic coefficient nulls for digital systems