The Non-linearity Effect of High Power Amplitude on OFDM Signal and Solution to Solve by Using PAPR Reduction

Ali Farzamnia, Tan Jia Min, Liau Chung Fan, Ervin Gubin Moung, Manas Kumar Haldar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is one of the popular methods that used to transmit the data in high speed rate in cellular communication. However, OFDM has a high Peak to Average Power Ratio (PAPR) which caused by the non-linearity of the High Power Amplifier (HPA) that provides transmission power to the OFDM signal. The high PAPR caused the OFDM signal to be low in efficiency and giving a high bit error rate. Thus, in this paper, a method for PAPR reduction that caused by the HPA is proposed. Precoding technique is one of the popular way to compensate the bad impact of the HPA by reducing the PAPR of the signal. In this paper, the bad impact caused by the HPA model on the OFDM signal will be analyzed. Moreover, the PAPR of the OFDM signal by using precoding techniques will be compared with the PAPR of the OFDM signal without precoding technique. From the simulation results, it was found that the ZCT-OFDM has a better PAPR reduction compared to the DCT and WALSH technique. It was also found that the lower the order of modulation scheme is, the better the PAPR reduction performance for OFDM signal compared to higher order modulation scheme.

Original languageEnglish
Title of host publicationProceedings - 2018 4th International Conference on Advances in Computing, Communication and Automation, ICACCA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781538671672
ISBN (Print)9781538671689
DOIs
Publication statusPublished - 29 Jul 2019
Externally publishedYes
Event4th International Conference on Advances in Computing, Communication and Automation - Subang Jaya, Malaysia
Duration: 26 Oct 201828 Oct 2018
Conference number: 4

Publication series

NameInternational Conference on Advances in Computing, Communication and Automation
PublisherIEEE
ISSN (Print)2641-8134
ISSN (Electronic)2642-7354

Conference

Conference4th International Conference on Advances in Computing, Communication and Automation
Abbreviated titleICACCA 2018
Country/TerritoryMalaysia
CitySubang Jaya
Period26/10/1828/10/18

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