A Novel Turbo Scheme Combining PTS with Adaptive TR for PAPR Reduction in OFDM Systems

Tu, Yung-Ping; Wu, Feng-Hsu; Huang, Yung-Fa

doi:10.1109/is3c50286.2020.00039

Cited by 3 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lower IBO leads to higher output signal power and, thus, higher HPA efficiency, but it may also cause severe nonlinear distortion. The in-band SDR contribution in (11) can be calculated by computing the quantity MER, which can be shown as follows [34]:…”

Section: Performance Metricsmentioning

confidence: 99%

“…The distortion in the constellation cells will be decreased when the first configuration of the filter is repeated. However, the receiver can estimate the occurred clipping and compensate the received OFDM symbol accordingly because the clipping noise is generated by a known process mentioned in [11].…”

Section: F-tr and Maximizing Hpa Efficiency Evaluation Criteriamentioning

confidence: 99%

“…However, due to the low probability of peak value appearance, CCDF improvement does not necessarily imply optimising PA efficiency. Signal peak can be optimization with a variety of approaches and schemes: clipping and filtering (CF) [8]; coding [9]; adaptive symbol selection [10]; partial transmit sequence (PTS) [11] and interleaving [12]; tone reservation/injection [13]; active signal constellation extension (ACE) [14], companding, and so forth [15]. Predistortion and coding schemes are no longer sufficient for modern communication systems; he tone distortion algorithm is considered one of the most potential approaches.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hybrid Energy Efficiency Friendly Frequency Domain TR Algorithm Based on PSO Algorithm Evaluated by Novel Maximizing HPA Efficiency Evaluation Criteria

Jin

et al. 2022

Energies

View full text Add to dashboard Cite

Smart Grids (SGs) expedite secure, large-scale and efficient two-way communication between the power supply and management, but under a sophisticated 5G communication infrastructure, the multi carrier system is the principle system. The high peak-to-average power ratio (PAPR) is one of the significant limitations of the 5G multi carrier (MC) system, as it impedes the efficient design of the 5G analogue front end. Tone reservation (TR) is a highly efficient scheme without signal distortion, which is designed by increasing the freedom in the frequency domain for PAPR reduction. In this paper, a particle swarm optimization (PSO) based TR (PSO-TR) scheme proceeding with an optimal input power back off-modulation error ratio (IBO-MER) convergence criterion is proposed to improve high power amplifier (HPA) efficiency for OFDM systems. A probabilistic analysis of TR predistribution and freedom in the frequency domain, in relationship with the amplitude of its constituent samples, is carried out. This yields the theoretical framework employed in design of the proposed high computing-enhanced solutions. The proposed PSO-TR essentially make the frequency domain distribution and operation itself adaptive, that is, it adjusts to comply with the changing HPA efficiency and redundant cost during application runtime.

show abstract

Section: Performance Metricsmentioning

confidence: 99%

Section: F-tr and Maximizing Hpa Efficiency Evaluation Criteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Energy Efficiency Friendly Frequency Domain TR Algorithm Based on PSO Algorithm Evaluated by Novel Maximizing HPA Efficiency Evaluation Criteria

Jin

et al. 2022

Energies

View full text Add to dashboard Cite

show abstract

“…[ 21 ], Kuo-Chen Chung et al utilize the codeword of linear code as a rotation factor to reduce the complexity of PTS technology and provide error correction capability. Furthermore, many researchers have struggled to vary the above techniques to optimize PAPR or reduce the computational complexity [ 21 , 22 , 23 , 24 , 25 , 26 ]. As in ref.…”

Section: Introductionmentioning

confidence: 99%

A Novel Low Complexity Two-Stage Tone Reservation Scheme for PAPR Reduction in OFDM Systems

Chang²

2023

Sensors

Self Cite

View full text Add to dashboard Cite

Orthogonal frequency division multiplexing (OFDM) has the characteristics of high spectrum efficiency and excellent anti-multipath interference ability. It is the most popular and mature technology currently in wireless communication. However, OFDM is a multi-carrier system, which inevitably has the problem of a high peak-to-average power ratio (PAPR), and s signal with too high PAPR is prone to distortion when passing through an amplifier due to nonlinearity. To address the troubles caused by high PAPR, we proposed an improved tone reservation (I-TR) algorithm to alleviate the above native phenomenon, which will pay some modest pre-calculations to estimate the rough proportion of peak reduction tone (PRT) to determine the appropriate output power allocation threshold then utilize a few iterations to converge to the near-optimal PAPR. Furthermore, our proposed scheme significantly outperforms previous works in terms of PAPR performance and computational complexity, such as selective mapping (SLM), partial transmission sequence (PTS), TR, tone injection (TI), etc. The simulation results show that in our proposed scheme, the PAPR is appreciably reduced by about 6.44dB compared with the original OFDM technique at complementary cumulative distribution function (CCDF) equal to 10−3, and the complexity of I-TR has reduced by approximately 96% compared to TR. Besides, as for bit error rate (BER), our proposed method always outperforms the original OFDM without any sacrifice.

show abstract

Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction

Jin

et al. 2022

Energies

View full text Add to dashboard Cite

The partial transmit sequence (PTS) technique is a fairly suitable scheme to mitigate the high peak-to-average power ratio (PAPR) problem inherent in 5G multicarrier systems, especially considering a high-order QAM modulation design. However, the high computational complexity level and the speed of the convergence for optimizing the phases of the transmitting signal restrict this technique in practical applications. In this paper, a low-complexity frequency-domain-evaluated PTS (F-PTS) based on a spacing multiobjective (SMO) processing algorithm is proposed to reduce the PAPR values. The PAPR performance are accurately predicted in terms of modifying relative dispersion in the frequency domain. As a result, the complexity of searching the optimal phase factors and IFFT computing is simplified. Moreover, a frequency-domain- and time-domain-evaluating PTS (FTD-PTS) is employed to search the optimal solution with a reasonable complexity. Simulation results verify that the operation rate of F-PTS is significantly improved after transferring the exhaustive search strategy of PTS into the SMO algorithm, and the F-PTS PAPR reduction performance is just 0.3 dB away from theoretical optimal performance. The FTD-PTS spends an acceptable operation rate to obtain optimal PAPR reduction performance, which subtracts 0.5 and 0.6 dB more than PSO-PTS and conventional PTS at CCDF=10−3, respectively.

show abstract

A Novel Turbo Scheme Combining PTS with Adaptive TR for PAPR Reduction in OFDM Systems

Cited by 3 publications

References 8 publications

Hybrid Energy Efficiency Friendly Frequency Domain TR Algorithm Based on PSO Algorithm Evaluated by Novel Maximizing HPA Efficiency Evaluation Criteria

Hybrid Energy Efficiency Friendly Frequency Domain TR Algorithm Based on PSO Algorithm Evaluated by Novel Maximizing HPA Efficiency Evaluation Criteria

A Novel Low Complexity Two-Stage Tone Reservation Scheme for PAPR Reduction in OFDM Systems

Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction

Contact Info

Product

Resources

About