Performance optimization method of GFDM system based on WFRFT spectral precoding
Generalized frequency division multiplexing (GFDM) system always faces challenges related to out-of-band (OOB) power leakage and a high peak-to-average power ratio (PAPR).Through an in-depth analysis of power spectrum characteristics of spectrally precoded GFDM systems, a universal spectral precodin...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2023-10-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023167/ |
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| author | Zhenduo WANG Zhaohui WANG Ruoyu ZHANG |
| author_facet | Zhenduo WANG Zhaohui WANG Ruoyu ZHANG |
| author_sort | Zhenduo WANG |
| collection | DOAJ |
| description | Generalized frequency division multiplexing (GFDM) system always faces challenges related to out-of-band (OOB) power leakage and a high peak-to-average power ratio (PAPR).Through an in-depth analysis of power spectrum characteristics of spectrally precoded GFDM systems, a universal spectral precoding (SP) framework based on the weighted fractional Fourier transform (WFRFT) was established.A two-dimensional parameter-adjustable WFRFT-SP-GFDM system was introduced.By flexibly configuring the parameters, the WFRFT spectral precoder could be made to approximate the weighted fractional Fourier transform matrix, achieve precise control over OOB power and PAPR.Simulation results indicate that, when compared to conventional GFDM and WFRFT-GFDM waveforms, the WFRFT-SP-GFDM waveform effectively suppresses OOB power leakage, while maintaining favorable PAPR and bit error rate (BER) performance. |
| format | Article |
| id | doaj-art-f32f17ffca8d434fafd26c79a337f32c |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2023-10-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-f32f17ffca8d434fafd26c79a337f32c2025-01-14T06:23:31ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2023-10-0144859359388262Performance optimization method of GFDM system based on WFRFT spectral precodingZhenduo WANGZhaohui WANGRuoyu ZHANGGeneralized frequency division multiplexing (GFDM) system always faces challenges related to out-of-band (OOB) power leakage and a high peak-to-average power ratio (PAPR).Through an in-depth analysis of power spectrum characteristics of spectrally precoded GFDM systems, a universal spectral precoding (SP) framework based on the weighted fractional Fourier transform (WFRFT) was established.A two-dimensional parameter-adjustable WFRFT-SP-GFDM system was introduced.By flexibly configuring the parameters, the WFRFT spectral precoder could be made to approximate the weighted fractional Fourier transform matrix, achieve precise control over OOB power and PAPR.Simulation results indicate that, when compared to conventional GFDM and WFRFT-GFDM waveforms, the WFRFT-SP-GFDM waveform effectively suppresses OOB power leakage, while maintaining favorable PAPR and bit error rate (BER) performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023167/GFDMWFRFTspectral precodingOOBPAPR |
| spellingShingle | Zhenduo WANG Zhaohui WANG Ruoyu ZHANG Performance optimization method of GFDM system based on WFRFT spectral precoding Tongxin xuebao GFDM WFRFT spectral precoding OOB PAPR |
| title | Performance optimization method of GFDM system based on WFRFT spectral precoding |
| title_full | Performance optimization method of GFDM system based on WFRFT spectral precoding |
| title_fullStr | Performance optimization method of GFDM system based on WFRFT spectral precoding |
| title_full_unstemmed | Performance optimization method of GFDM system based on WFRFT spectral precoding |
| title_short | Performance optimization method of GFDM system based on WFRFT spectral precoding |
| title_sort | performance optimization method of gfdm system based on wfrft spectral precoding |
| topic | GFDM WFRFT spectral precoding OOB PAPR |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023167/ |
| work_keys_str_mv | AT zhenduowang performanceoptimizationmethodofgfdmsystembasedonwfrftspectralprecoding AT zhaohuiwang performanceoptimizationmethodofgfdmsystembasedonwfrftspectralprecoding AT ruoyuzhang performanceoptimizationmethodofgfdmsystembasedonwfrftspectralprecoding |