THE COMBINATION OF CLIPPING AND FILTERING WITH SELECTIVE MAPPING METHODS FOR PEAK TO AVERAGE POWER RATIO REDUCTION IN OFDM

Result code in IS VaVaI

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Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

THE COMBINATION OF CLIPPING AND FILTERING WITH SELECTIVE MAPPING METHODS FOR PEAK TO AVERAGE POWER RATIO REDUCTION IN OFDM

Original language description

The high Peak to Average Power Ratio (PAPR) is a serious drawback of the Orthogonal Frequency Division Multiplex (OFDM). In this paper, the advantages of two different approaches to PAPR reduction are exploited in order to reduce the PAPR more significantly. The first approach is based on clipping and provides a high PAPR reduction at the cost of signal distortion. The second approach (selective mapping) results in no distortion, but it suffers from higher complexity. Two cases of simulation setup havebeen chosen for the evaluation - one with a lower number of subcarriers (Wimax-like signal), the other signal is similar to the future DVB-T2 32K mode. The performance of the combined method is evaluated on the PAPR distribution function and on the Bit Error Rate as a function of both Signal to Noise Ratio ( Additive Gaussian Noise Channel) and Input Back Off (Saleh model of nonlinear power amplifier).

Czech name

THE COMBINATION OF CLIPPING AND FILTERING WITH SELECTIVE MAPPING METHODS FOR PEAK TO AVERAGE POWER RATIO REDUCTION IN OFDM

Czech description

The high Peak to Average Power Ratio (PAPR) is a serious drawback of the Orthogonal Frequency Division Multiplex (OFDM). In this paper, the advantages of two different approaches to PAPR reduction are exploited in order to reduce the PAPR more significantly. The first approach is based on clipping and provides a high PAPR reduction at the cost of signal distortion. The second approach (selective mapping) results in no distortion, but it suffers from higher complexity. Two cases of simulation setup havebeen chosen for the evaluation - one with a lower number of subcarriers (Wimax-like signal), the other signal is similar to the future DVB-T2 32K mode. The performance of the combined method is evaluated on the PAPR distribution function and on the Bit Error Rate as a function of both Signal to Noise Ratio ( Additive Gaussian Noise Channel) and Input Back Off (Saleh model of nonlinear power amplifier).

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Electrotechnica et Informatica

ISSN

1335-8243

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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