Advanced search ?

Object

Download

Title: Enhancement of Power Efficiency in OFDM System by SLM with Predistortion Technique, Journal of Telecommunications and Information Technology, 2011, nr 4

Creator:

Sharma, T. N. ; Sharma, Pankaj Kumar ; Nagaria, R. K.

Date:

2011, nr 4

Resource Type:

artykuł

Description:

Orthogonal Frequency Division Multiplexing (OFDM) is considered as a strong candidate for future wireless communication because it is marked by its higher frequency multiplicity and greater immunity to multipath fading. However, the main drawback of OFDM is its high amplitude fluctuations measured by peak-to-average power ratio (PAPR), which leads to power inefficiency and requires expensive high power amplifier (HPA) with very good linearity. In this paper, we propose selected mapping (SLM) with predistortion technique to decrease the nonlinear distortion and to improve the power efficiency of the nonlinear HPA. In the proposed method SLM reduces the PAPR and improves the power efficiency, the predistorter improves the bit error rate (BER) performance of the system. The PAPR reduction is possible with SLM when compared with original OFDM. After reducing the PAPR with SLM the data goes into the HPA with and without predistorter. The BER performance curves of SLM method with or without predistorter shows that, predistorter operates more effectively in SLM method than original OFDM system. At 4 dB IBO (input backoff) the conventional method with predistorter achieves 1.8 dB SNR gain than conventional method without a predistorter and at 6 dB IBO the BER performance is towards the ideal linear amplifier. The proposed system will be evaluated for OFDM system in the presence of a nonlinear power amplifier.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Format:

application/pdf

Resource Identifier:

oai:bc.itl.waw.pl:1204 ; ISSN 1509-4553, on-line: ISSN 1899-8852

DOI:

10.26636/jtit.2011.4.1183

ISSN:

1509-4553

eISSN:

1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności

Subject and keywords:

PAPR OFDM SLM nonlinear HPA

Object collections:

Last modified:

Aug 29, 2024

In our library since:

May 28, 2013

Number of object content hits:

309

All available object's versions:

https://bc.itl.waw.pl/publication/1509

Show description in RDF format:

RDF

Show description in OAI-PMH format:

OAI-PMH

Edition name Date
Sharma, Pankaj Kumar; Nagaria, R. K.; Sharma, T. N., Enhancement of Power Efficiency in OFDM System by SLM with Predistortion Technique, Journal of Telecommunications and Information Technology, 2011, nr 4 Aug 29, 2024

Objects Similar
Complex Signal Mapping for Improving Spectral Efficiency of Li-Fi Systems, Journal of Telecommunications and Information Technology, 2019, nr 3

Sileh, Ibrahim K. Hussein, Mohammed K. Abdulkafi, Ayad A. Hardan, Saad M.

2019, nr 3
artykuł
Interleaving Technique Implementation to Reduce PAPR of OFDM Signal in Presence of Nonlinear Amplification with Memory Effects, Journal of Telecommunications and Information Technology, 2018, nr 3

Aimer, Younes Duvanaud, Claude Bachir, Smai Bouazza, Boubakar Seddik

2018, nr 3
artykuł
Comparison of traffic performance of QPSK and 16-QAM modulation techniques for OFDM system, Journal of Telecommunications and Information Technology, 2005, nr 1

Islam, Imdadul Hossain, Siddique

2005, nr 1
artykuł
Subcarrier Gain Based Power Allocation in Multicarrier Systems, Journal of Telecommunications and Information Technology, 2014, nr 1

Abd El-Samie, Fathi E. Zhu, Xu Messiha, Nagy W. Sedhom, Germien G. Abd-Elnaby, Mohammed

2014, nr 1
artykuł
Blind frequency offset estimation for overlap PCC-OFDM systems in presence of phase noise, Journal of Telecommunications and Information Technology, 2003, nr 2

Shentu, Jinwen Armstrong, Jean

2003, nr 2
artykuł
Wymagania na rozdzielczość i nieliniowość przetwornika C/A dla sygnału OFDM. Telekomunikacja i Techniki Informacyjne, 2010, nr 3-4

Kozłowski, Sebastian Rudziński, Adam

2010, nr 3-4
artykuł
Improvement of LTE Downlink Channel Estimation Performance by Using an Adaptive Pilot Pattern, Journal of Telecommunications and Information Technology, 2015, nr 2

Youssefi, My Abdelkader El Abbadi, Jamal

2015, nr 2
artykuł
A DFT-based Low Complexity LMMSE Channel Estimation Technique for OFDM Systems, Journal of Telecommunications and Information Technology, 2022, nr 1

Patra, Jyoti P. Singh, Poonam Pradhan, Bibhuti Bhusan

2022, nr 1
artykuł
More
×

Citation

Citation style:

Contact details

Address

Instytut Łączności – Państwowy Instytut Badawczy ul. Szachowa 1 04-894 Warszawa

Phone

(+48) 5128 696

E-Mail

biblioteka@il-pib.pl

Visit us!

This page uses 'cookies'. More information