Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction
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...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/8/2738 |
| _version_ | 1797434864240164864 |
|---|---|
| author | Feng Hu Yuan Lu Libiao Jin Jianbo Liu Zhiping Xia Guoting Zhang Jingting Xiao |
| author_facet | Feng Hu Yuan Lu Libiao Jin Jianbo Liu Zhiping Xia Guoting Zhang Jingting Xiao |
| author_sort | Feng Hu |
| collection | DOAJ |
| description | 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">CCDF</mo><mo>=</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>, respectively. |
| first_indexed | 2024-03-09T10:39:02Z |
| format | Article |
| id | doaj.art-cdf576f0d3664631b4cbe67c549cf1a2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T10:39:02Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cdf576f0d3664631b4cbe67c549cf1a22023-12-01T20:47:52ZengMDPI AGEnergies1996-10732022-04-01158273810.3390/en15082738Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR ReductionFeng Hu0Yuan Lu1Libiao Jin2Jianbo Liu3Zhiping Xia4Guoting Zhang5Jingting Xiao6School of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaAcademy of Broadcasting Science, Beijing 100045, ChinaAcademy of Broadcasting Science, Beijing 100045, ChinaAcademy of Broadcasting Science, Beijing 100045, ChinaThe 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">CCDF</mo><mo>=</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>, respectively.https://www.mdpi.com/1996-1073/15/8/2738multicarrier system5G communicationpartial transmission sequenceOFDMpower amplifier efficiencyPAPR |
| spellingShingle | Feng Hu Yuan Lu Libiao Jin Jianbo Liu Zhiping Xia Guoting Zhang Jingting Xiao Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction Energies multicarrier system 5G communication partial transmission sequence OFDM power amplifier efficiency PAPR |
| title | Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction |
| title_full | Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction |
| title_fullStr | Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction |
| title_full_unstemmed | Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction |
| title_short | Hybrid-Domain Evaluation PTS with Adaptive Selection Methods for PAPR Reduction |
| title_sort | hybrid domain evaluation pts with adaptive selection methods for papr reduction |
| topic | multicarrier system 5G communication partial transmission sequence OFDM power amplifier efficiency PAPR |
| url | https://www.mdpi.com/1996-1073/15/8/2738 |
| work_keys_str_mv | AT fenghu hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT yuanlu hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT libiaojin hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT jianboliu hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT zhipingxia hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT guotingzhang hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction AT jingtingxiao hybriddomainevaluationptswithadaptiveselectionmethodsforpaprreduction |