alexa Abstract | Effects of Predistortion on Linearized Transmitter Design for Videoconferencing Channel
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article Open Access

Abstract

In this paper usingPredistortion technique for reducing distortion in the Videoconferencing channel. QPSK modulation is widely used technique in communication system whenever any data travelling through the channel it gets the AM/AM and AM/PM distortions .Predistortion is the technique in which if we know the channel response then We can create the inverse response of it and applying before the nonlinear PA in the transmitter side combining both response and travelling through the channel we can get good linearity and better performance at the receiver side. Earlier Predistortion is designed by using the Active Circuit and It can be made using passive circuit. For Pulse Shaping requirement Raised Cosine filter which is more suitable and adjustable shaping curve sharpness by changing roll off factor which nullify the effect of ISI .Non-linear Saleh Model is used for reducing AM/AM and AM/PM distortion. For Simulink purpose The channel is Distorted the Eye of it is Closed in the Eye diagram but after applying the Predistortion technique when we see the Eye Diagram of it Open Eye Which introduce the less ISI .

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Bhavik Patel

Share This Page

Additional Info

Loading
Loading Please wait..
 
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords