BER AND SIMULATION OF OFDM MODULATOR AND DEMODULATOR FOR WIRELESS BROADBAND APPLICATIONS
Journal Title: International Journal of Advanced Research in Computer Engineering & Technology(IJARCET) - Year 2012, Vol 1, Issue 4
Abstract
With the rapid growth of digital wireless communication in recent years, the need for high speed mobile data transmission has increased. New modulation techniques are being implemented to keep up with the desired more communication capacity. Processing power has increased to a point where OFDM has become feasible and economical. Some examples of current applications using OFDM include DVB (Digital video broadcasting), DAB (Digital audio broadcasting), and HDTV (high - definition television).OFDM as a transmission technique has been known having a lot of strengths compared to any other transmission technique, such as its high spectral efficiency, its robustness to the channel fading. Orthogonal. frequency division multiplexing (OFDM) has become very popular, allowing high speed wireless communications. Orthogonal frequency division multiplexing (OFDM) has become very popular, allowing high speed wireless communications. A basic OFDM system consists of a QAM or QPSK modulator, a serial to parallel data, and an IFFT and FFT module, Guard interval inserter, in phase and quadrature phase signal generator, and parallel to serial data. In this thesis I have implemented the OFDM modulator and demodulator by using different types of digital modulation techniques such as BPSK, QPSK, 8-QAM. BER for OFDM by using 8-QAM,16-QAM, 64-QAM . MATLAB environment was used for simulation of proposed algorithm.
Authors and Affiliations
V. SRIDHAR , M. V BRAMHANANDA REDDY 2 , M. NAGALAXMI
Keywords
Related Articles
- EP ID EP120604
- DOI -
- Views 71
- Downloads 0
Geographical Routing in Intermittently Connected MANETs with Guaranteed Delivery at Void Locations
The major challenges in MANETs are finding the destination, routing and robust communication dealing with constant topology change. When there is no end to end path at any given time between source and destination...
FPGA Implementation of an Advanced Traffic Light Controller using Verilog HDL
Traffic lights are the signaling devices used to manage traffic on multi-way road. These are positioned to control the competing flow of the traffic at the road intersections to avoid collisions. By displaying ligh...
Intelligent System for detecting, Modeling, Classification of human behavior using image processing, machine vision and OpenCV
Surveillance Cameras has proven to be a key factor in enhancing the public security in many countries around the world . In spite of advancements in image processing and machine vision techniques very less is app...
Optimized Surveillance Solution for Unattended Baggage Recognition
Abstract—The system automatically recognize activities around protected area to improve safety and security by multiplexing hundreds of video streams in real time. Object tracking method has important role in real tim...
Investigation on Performance of Trust Based Model and Trust Evaluation of Reactive Routing Protocols in MANET
In this paper we investigate and implementing trust based route selection in mobile wireless ad hoc networks. A system that stores and updates trust values for nodes encountered in mobile ad hoc networks. Since a rout...