Peak-to-Average Power Ratio Reduction Techniques in OFDM: A Review and Challenges

Kotade, Amol B.; Nandgaonkar, Anil; Nalbalwar, Sanjay L.

doi:10.1109/icacct.2018.8529645

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…In Block Coding technique it can be divide into two such as Arithmetic coding and Huffman coding, the Arithmetic coding is better on reducing PAPR by 32% compare Huffman only 30.6% [6]. The Clipping & Filtering technique is the simplest technique to reduce PAPR and it is depended on clipping level that satisfies the signal to quantization noise ratio (SQNR) [7]. PTS technique is better in reduce PAPR value compare with SLM and Clipping and filtering technique [8].…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction in Cyclic Prefix OFDM (5G) System using Group Codeword Shifting Technique

Azlan Yusof,

Ezmin Abdullah,

Azlina Idris

et al. 2023

ARAM

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Cyclic Prefix Orthogonal Frequency Division Multiplexing (CPOFDM) is a 5G multicarrier waveform that enables high data rates and spectrum efficiency improvements. The primary drawback of CPOFDM is that it has a high peak to average power ratio (PAPR), which is a characteristic of all multicarrier modulation techniques. We study the application of a Group Codeword Shift (GCS) approach to reduce the peak to average power ratio (PAPR) in a CPOFDM system in this article. Additionally, we compared the results of peak to average power ratio (PAPR) reduction with low complexity in CPOFDM using a Group Codeword Shift (GCS) approach, Selective Codeword Shift (SCS), Median Codeword and Conventional CPOFDM.

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Section: Introductionmentioning

confidence: 99%

PAPR Reduction in Cyclic Prefix OFDM (5G) System using Group Codeword Shifting Technique

Azlan Yusof,

Ezmin Abdullah,

Azlina Idris

et al. 2023

ARAM

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“…In OFDM, each sub-carrier is modulated in conventional way with low symbol rate. The BW of each subcarrier is so small that on adding the BW of subcarrier is smaller than conventional modulation BW hence it doesn't suffer from frequency selective fading but extremely suffers from PAPR [4] The advantage of OFDM is that spectral efficiency increases as subcarriers are overlapped to each other such that they maintain orthogonality between each other [5]. Due to the presence of power amplifiers which is a non-linear element that distorts the signal [6].…”

Section: Introductionmentioning

confidence: 99%

An Approach for PAPR Reduction in OFDM System using RCF Technique

Singh¹

2022

J. Engg. Res. & Sci.

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OFDM is one of the important modulation techniques for wireless communication which is the advanced version of FDM. Now-a-days congestion networking is growing like AI, IoT, 5G etc. so there is a need of high data rate with low BER. For such a network there is requirement of high-speed secured data transmission that is multicarrier technique OFDM. This modulation technique is useful for current and future scenario. One of the major issue in OFDM is high PAPR and this is happened due to large amount of input data bits. High PAPR results in distortion in bands and power inefficiency using power amplifier. RCF is the technique used in this paper to reduce the PAPR and analyze the results with and without applying PAPR reduction technique. In this paper, after application of 4 clip and filter SNR is improved along with decrement of CCDF of PAPR which is desired.

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“…Como P M L é matriz diagonal e a diagonal principal de M H M é formada por 1's, (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) simplica para…”

Section: Resultados Numéricos: Estratégias De Detecção Mimo-gfdm Com ...unclassified

“…Outras importantes desvantagens incluem uma alto peak to average power ratio (PAPR), que é a relação entre a potŸncia máxima de uma amostra em um determinado símbolo de transmissão OFDM dividida pela potŸncia média desse símbolo OFDM [13], [14]. Em termos gerais, PAPR é a razão entre a potŸncia de pico e a potŸncia média de um sinal.…”

Section: Introductionunclassified

Sistema Mimo GFDM Com Modulação De Índice

LUIS CALPA JUAJINOY

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A presente tese se dedica ao estudo do sistema de comunicação sem o MIMO-GFDM-IM. Este sistema, por apresentar atratividades como elevada eciŸncia espectral, eciŸncia energética e resiliŸncia ao canal de propagação multipercurso, é de interesse para os futuros sistemas de comunicação. Antecedendo o estudo deste sistema, o modelo de sinais e sistemas para MIMO-GFDM é desenvolvido com base no modelo MIMO-OFDM e estratégias de detecção para o sistema são propostas. Uma nova proposta para a detecção MIMO-GFDM, baseada em duas fases de ltragem, é apresentada, resultando em atrativa relação desempenho de detecção e complexidade computacional. O modelo de sistema apresentado é então estendido para incluir a modulação de índice como portadora de informação, resultando no sistema MIMO-GFDM-IM. Inicialmente considerando sistemas ponto-a-ponto, são avaliados diferentes propostas de detectores baseados no processamento da matriz de canal completa e também para os detectores de complexidade reduzida, sob a ótica de desempenho de detecção e complexidade computacional. Por m, é considerado o sistema MIMO-GFDM-IM no uplink de um sistema multiusuário.

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Peak-to-Average Power Ratio Reduction Techniques in OFDM: A Review and Challenges

Cited by 8 publications

References 16 publications

PAPR Reduction in Cyclic Prefix OFDM (5G) System using Group Codeword Shifting Technique

PAPR Reduction in Cyclic Prefix OFDM (5G) System using Group Codeword Shifting Technique

An Approach for PAPR Reduction in OFDM System using RCF Technique

Sistema Mimo GFDM Com Modulação De Índice

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