•   Home
  • Proceedings
  • 12th Annual Meeting of China Association for Science and Tec...

12th Annual Meeting of China Association for Science and Technology on Information and Communication Technology and Smart Grid (AMCST 2010 E-BOOK)

Fuzhou,China,11.1-11.3，2010

ISBN: 978-1-935068-23-5 Scientific Research Publishing, USA

E-Book 660pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $120

Title: A Research on Improved Algorithm of Reducing OFDM PAPR
Source: 12th Annual Meeting of China Association for Science and Technology on Information and Communication Technology and Smart Grid (AMCST 2010 E-BOOK) (pp 411-415)
Author(s): Zhao-hua Zeng, Xi’an University of Science and Technology, Xi’an, China
Xiu-bin Ye, Xi’an University of Science and Technology, Xi’an, China
Abstract: OFDM has its good performance as the LTE key technologies, specially the OFDM modulating technology has provided the higher frequency use factor. But the OFDM modulation has a problem that the PAPR of signals is excessively high caused by many sub-carrier superimposition in time domain. This problem leads power amplifier efficiency to reduce, then easy to cause the signal to enter the nonlinear area of the power amplifier to have the distortion, thus reduces the performance of overall system. We research the problem of too high PAPR of OFDM signal in the TDD LTE system, and find some essential methods to reduce the OFDM peak, then carry on the performance simulation. This article mainly introduced the concept of reducing PAPR in intermediate frequency, and has designed the algorithm of noise forming in the intermediate frequency. This method has avoided the question of peak value regeneration after signal synthesis in the baseband peak clipping.
Proceedings by Subjects
Resources
Products
Contact us
book@scirp.org
WhatsApp +86 18163351462(WhatsApp)
Click here to send a message to me 1243940697
Book Publishing WeChat
Follow SCIRP
Free SCIRP Newsletters
Copyright © 2006-2024 Scientific Research Publishing Inc. All Rights Reserved.
Top