A novel search method to reduce PAPR of an OFDM signal using partial transmit sequences

Tu, H.-Y.; Chiu, Chien‐Ching

doi:10.1002/dac.810

Cited by 13 publications

(12 citation statements)

References 12 publications

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“…This procedure presents a mean value of several results that were performed, such that it is possible to establish a comparison with the actual measurements and those ones we have made previously. If more tests are realized more precise, they become and the mean curve can be adjusted more conveniently, as it is being presented in Figure 32 [22][23][24][25][26][42][43][44][45][46][47].…”

Section: New Trends and Developments In Metrologymentioning

confidence: 99%

“…This means expensive and specialized setups capable of performing the necessary measurements [36][37][38][39][40][41][42][43][44][45]. In Section 5, we present a high performance and low-cost setup designed for test and characterization of RF high-power amplifiers, capable of generate reports that will help the operator to decide about the conformity of the equipment with other ones tested, as we can see in the characterization of a power drawer [46][47][48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

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Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Silveira¹,

Silva²,

Campos³

et al. 2016

New Trends and Developments in Metrology

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The essential purpose of this chapter is to introduce theoretical and numerical approaches that can be used for modeling nonlinear effects that appear intrinsically in the design of power amplifiers that have been used widely in many modern highdensity television (HDTV) architectures. Important effects like the pre-distortion using adaptive techniques, with distinct characteristics like amplitude, phase, and frequency, as well as, their specific nature such as AM/AM, AM/PM, PM/AM, and PM/PM, and constitute one of the main directions of this research. All theoretical and technological approaches have been supported by a consistent set of numerical data performed with one of the most important platform of simulations used in the great area of Radio Frequency (RF) and Microwave structures. As a direct application, we are introducing some efficient processes that can be used for the characterization of RF systems with a set of consistent laboratorial measures that permit us to visualize the effective cost and a complete architecture for the characterization of high-power amplifiers. With the continuous and innovative technological demand that is imposed by the international marketing has a great importance to find versatile systems that are capable of measuring several amplifier characteristics, as gain, output power, inter-modulation distortion of different signals, efficiency, current, and temperature that constitute another direction of research that has been demanded strongly for news advanced technologies used widely in modern HDTV systems.

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Section: New Trends and Developments In Metrologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Silveira¹,

Silva²,

Campos³

et al. 2016

New Trends and Developments in Metrology

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show abstract

“…For both SLM and PTS techniques, a significant amount of IFFT devices are required at the transmitter, and side information has to be sent to the receiver. Reducing the computational complexity has received considerable interest [4][5][6][7][8]. For the SLM scheme, the researches [4][5][6] decreased the number of IFFT devices, and the relevant work [7] reduced the computational complexity.…”

Section: Introductionmentioning

confidence: 99%

“…For the SLM scheme, the researches [4][5][6] decreased the number of IFFT devices, and the relevant work [7] reduced the computational complexity. The authors in [8] reduced the computational complexity for the PTS scheme. However, the first category of technique still requires a significant amount of side information and slightly greater computational complexity.…”

Section: Introductionmentioning

confidence: 99%

A low‐complexity companding technique using Padé approximation for PAPR reduction of an OFDM system

Jeng

Chen

Chang

2011

Int J Communication

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SUMMARYOrthogonal Frequency Division Multiplexing (OFDM) systems have become the most promising wireless communication systems in the recent years. For OFDM systems, there is one major drawback, which is the high peak-to-average power ratio (PAPR). Companding techniques have been frequently proposed to reduce PAPR. Exponential companding technique offers efficient PAPR reduction with a low bit error rate (BER). However, the exponential companding technique is difficult to implement. This paper utilizes the Padé approximation to simplify the exponential companding technique. The simulation results demonstrate that the proposed companding technique offers the same performance results as those of the exponential companding technique, while Additive White Gaussian Noise (AWGN) or multipath fading channel is considered. Further, the hardware implementation results show that the complexity of the proposed companding technique is less than that of the exponential companding technique.

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“…[6][7][8][9]. The computational complexity for SLM techniques is decreased in [6][7][8], whereas the computational complexity for PTS techniques is reduced in [9]. However, the first category of techniques still have to gather some side information and this results in slightly higher computational complexity.The second category of techniques generates the OFDM signals after multicarrier modulation, such as amplitude clipping and the companding transform (CT).…”

mentioning

confidence: 99%

Utilizing a novel root companding transform technique to reduce PAPR in OFDM systems

Chang

Jeng

Chen

2010

Int J Communication

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SUMMARYOne major defect in orthogonal frequency division multiplexing systems is the high peak-to-average power ratio (PAPR) at the transmitter. The linear nonsymmetrical transform (LNST) technique, one of the companding transform (CT) techniques for PAPR reduction, offers excellent performance, but requires additional side information. In this paper, a new 'root CT' technique without additional side information is proposed, and it can reach a good trade-off between the PAPR reduction and the bit error rate (BER). The theoretical analysis of the proposed root technique is also derived. The simulation results show that the proposed root CT technique can achieve more efficient PAPR reduction and better power spectrum density than those of the LNST technique. The BER of the proposed CT technique without additional side information is close to that of the LNST technique with additional side information when the AWGN or multipath fading channels are considered. Furthermore, the simulation results also demonstrate that the proposed technique offers better performance than that of the -law technique over the AWGN and multipath fading channels.

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A novel search method to reduce PAPR of an OFDM signal using partial transmit sequences

Cited by 13 publications

References 12 publications

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

A low‐complexity companding technique using Padé approximation for PAPR reduction of an OFDM system

Utilizing a novel root companding transform technique to reduce PAPR in OFDM systems

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