Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis
High sidelobes of orthogonal frequency-division multiplexing (OFDM) signals must be resolved for future wireless communications. In this study, we propose and analyze an efficient orthogonally linear precoding to suppress the sidelobes in OFDM systems. The proposed scheme uses a decomposed precoder...
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| Format: | Article |
| Language: | English |
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2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10816432/ |
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| author | Hikaru Kawasaki Fumihide Kojima Takeshi Matsumura |
| author_facet | Hikaru Kawasaki Fumihide Kojima Takeshi Matsumura |
| author_sort | Hikaru Kawasaki |
| collection | DOAJ |
| description | High sidelobes of orthogonal frequency-division multiplexing (OFDM) signals must be resolved for future wireless communications. In this study, we propose and analyze an efficient orthogonally linear precoding to suppress the sidelobes in OFDM systems. The proposed scheme uses a decomposed precoder on the real domain for a successive N-continuous technique. Comprehensive theoretical analyses justify its performance and have mathematical representations parallel with the counterparts of related precoding schemes. In conclusion, the proposed scheme drastically reduces the conventional precoding’s complexity to a level matching that of a fast Fourier transform for OFDM and provides 99 % storage overhead reduction. All its inherent advantages are maintained such as fast, smooth, and symmetrical spectral decay of band-edges, and ideal characteristics of error rate and peak power. |
| format | Article |
| id | doaj-art-087dc2cd4b574b828904b3017a4e81d9 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-087dc2cd4b574b828904b3017a4e81d92025-01-03T00:02:04ZengIEEEIEEE Access2169-35362025-01-011316017210.1109/ACCESS.2024.352328010816432Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its AnalysisHikaru Kawasaki0https://orcid.org/0000-0002-9176-1969Fumihide Kojima1https://orcid.org/0000-0002-1204-4583Takeshi Matsumura2https://orcid.org/0000-0002-7027-8847Wireless Systems Laboratory, Wireless Networks Research Center, Network Research Institute, National Institute of Information and Communications Technology, Yokosuka, Kanagawa, JapanICT Testbed Research and Development Promotion Center, Social Innovation Unit, Open Innovation Promotion Headquarters, National Institute of Information and Communications Technology, Tokyo, JapanWireless Systems Laboratory, Wireless Networks Research Center, Network Research Institute, National Institute of Information and Communications Technology, Yokosuka, Kanagawa, JapanHigh sidelobes of orthogonal frequency-division multiplexing (OFDM) signals must be resolved for future wireless communications. In this study, we propose and analyze an efficient orthogonally linear precoding to suppress the sidelobes in OFDM systems. The proposed scheme uses a decomposed precoder on the real domain for a successive N-continuous technique. Comprehensive theoretical analyses justify its performance and have mathematical representations parallel with the counterparts of related precoding schemes. In conclusion, the proposed scheme drastically reduces the conventional precoding’s complexity to a level matching that of a fast Fourier transform for OFDM and provides 99 % storage overhead reduction. All its inherent advantages are maintained such as fast, smooth, and symmetrical spectral decay of band-edges, and ideal characteristics of error rate and peak power.https://ieeexplore.ieee.org/document/10816432/OFDMprecodingpulse shapinginterference suppression |
| spellingShingle | Hikaru Kawasaki Fumihide Kojima Takeshi Matsumura Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis IEEE Access OFDM precoding pulse shaping interference suppression |
| title | Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis |
| title_full | Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis |
| title_fullStr | Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis |
| title_full_unstemmed | Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis |
| title_short | Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis |
| title_sort | low complexity architecture of orthogonal italic n italic continuous precoding for sidelobe suppression of ofdm signals and its analysis |
| topic | OFDM precoding pulse shaping interference suppression |
| url | https://ieeexplore.ieee.org/document/10816432/ |
| work_keys_str_mv | AT hikarukawasaki lowcomplexityarchitectureoforthogonalitalicnitaliccontinuousprecodingforsidelobesuppressionofofdmsignalsanditsanalysis AT fumihidekojima lowcomplexityarchitectureoforthogonalitalicnitaliccontinuousprecodingforsidelobesuppressionofofdmsignalsanditsanalysis AT takeshimatsumura lowcomplexityarchitectureoforthogonalitalicnitaliccontinuousprecodingforsidelobesuppressionofofdmsignalsanditsanalysis |