PAPR Reduction of OFDM Signal via Custom Conic Optimized Iterative Adaptive Clipping and Filtering

Nandalal, V.; Sophia, S.

doi:10.1007/s11277-014-1788-x

Cited by 8 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ICF method is one of the clipping based methods that focus on clipping of the signal based on fixed threshold value. In [12] ICF method, convex optimization is utilized along with the rectangular window. This idea able to lower the PAPR level with a fewer number of iterations but failed to control inband radiation.…”

Section: Description and Analysis Of Oicf And Soicfmentioning

confidence: 99%

“…To lower the BER minimization of EVV is essential. A simplified version of OICF have been presented to lower the computational complexity of the SOICF [12] algorithm.…”

Section: Description and Analysis Of Oicf And Soicfmentioning

confidence: 99%

“…Many PAPR mitigation techniques [10] have been proposed and developed by authors in the literature. Among them the prominent techniques [11] includes clipping, [12] tone reservation (TR), precoding [13], active constellation extension (ACE) [14] , partial transmission sequence (PTS) [15], peak insertion techniques and [16] selected mapping (SLM). These techniques [17] are categorized into multiple signalling, signal distortion, probabilistic techniques, and coding techniques [18].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An improved ASOICF algorithm for PAPR reduction in OFDM systems

Padarti¹,

Nandhanavanam²

2021

IJIES

View full text Add to dashboard Cite

Orthogonal Frequency Division Multiplexing (OFDM) is an extensively used technology in broadband wireless communications. However, it also poses some drawbacks. The critical limitation which affects the quality of the service (QoS) is a peak-to-average power ratio (PAPR). This high PAPR problem results in the degradation of the power efficiency of the RF amplifier. Among the PAPR reduction schemes, Iterative clipping and filtering (ICF) gained a lot of attention due to its simplicity of implementation in the mitigation of PAPR in OFDM systems. ICF technique drives Fast-Fourier transform (FFT) / inverse FFT (IFFT) signal processing blocks multiple numbers of times to attain the prescribed level of PAPR, which leads to high system power consumption and add on computational time. In addition, the ICF technique was unable to control the in-band and out-of-band radiation. Therefore, we introduce an improved Adaptive Simplified Optimized Iterative Clipping and Filtering (ASOICF) algorithm to reduce PAPR in OFDM systems. The algorithm exploits Lagrange Multiplier optimization (LMO), the advantage of choosing LMO is to belittle the number of iterations in a customized fashion. We have found that our adaptive algorithm significantly reduces the PAPR in OFDM signals. The effectiveness of the proposed algorithm reveals it outperforms the existing techniques with a 4dB improvement in the simulation results and with reduced computational complexity.

show abstract

Section: Description and Analysis Of Oicf And Soicfmentioning

confidence: 99%

“…To lower the BER minimization of EVV is essential. A simplified version of OICF have been presented to lower the computational complexity of the SOICF [12] algorithm.…”

Section: Description and Analysis Of Oicf And Soicfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An improved ASOICF algorithm for PAPR reduction in OFDM systems

Padarti¹,

Nandhanavanam²

2021

IJIES

View full text Add to dashboard Cite

show abstract

“…The authors claimed that this method achieves a desired PAPR reduction after only 1 or 2 iterations, whereas the conventional clipping and filtering method requires about 8 to 16 iterations to achieve the similar PAPR reduction. A novel Custom Conic Optimized Iterative Adaptive Clipping and Filtering (COIACF), which is also known as convex optimization, was proposed in [45] to reduce the PAPR of OFDM signals with lower complexity and bit error rate. The authors modified the filter response to produce a better reduction in PAPR and a better performance in in-band distortion and out-of-band radiation in less number of iterations due to the functionality of FFT.…”

Section: Clipping and Filteringmentioning

confidence: 99%

An Overview of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Wang¹,

Sun²,

Zhang³

2016

IJMNCT

View full text Add to dashboard Cite

show abstract

“…The iterative clipping and filtering reduce the PAPR effect without the spectrum expansion. This technique usually takes a long time also it makes the system more complex by increasing the complexity of an OFDM Transmitter (Nandalal and Sophia, 2014).…”

Section: Clipping and Filteringmentioning

confidence: 99%

A Review on OFDM and PAPR Reduction Techniques

Кумар¹,

Gupta²

2015

American Journal of Engineering and Applied Sciences

View full text Add to dashboard Cite

OFDM is a multi carrier transmission technique where a single set of data is transmitted over a number of sub-carrier. OFDM takes the advantage of multi-path propagation and reduces the fading effect. The idea of OFDM is to split the total transmission bandwidth into a number of orthogonal subcarriers which reduces the inter-symbol-interference, power consumption and increases the capacity and efficiency of the system. PeakAverage-Power-Ratio (PAPR) is one of the dis-advantage of OFDM which reduces the efficiency of system. In first part of this review, We have describe the OFDM characteristics of signals and its designing by combining the different block and in next part of this work, we have consider the PAPR effect in OFDM signals and have compared and review a several PAPR Reduction Techniques. The aim of this article is to provide a comprehensive detail about the implementation of an OFDM System and to study the different PAPR reduction techniques.

show abstract

PAPR Reduction of OFDM Signal via Custom Conic Optimized Iterative Adaptive Clipping and Filtering

Cited by 8 publications

References 16 publications

An improved ASOICF algorithm for PAPR reduction in OFDM systems

An improved ASOICF algorithm for PAPR reduction in OFDM systems

An Overview of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

A Review on OFDM and PAPR Reduction Techniques

Contact Info

Product

Resources

About