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On the Achievable Spectral Efficiency of Non-Orthogonal Frequency Division Multiplexing
http://hdl.handle.net/10131/0002000023
http://hdl.handle.net/10131/000200002367f26c0f-9f2f-4bfb-8f20-6c2799e19c50
名前 / ファイル | ライセンス | アクション |
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10198361.pdf (1.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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公開日 | 2023-08-22 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | On the Achievable Spectral Efficiency of Non-Orthogonal Frequency Division Multiplexing | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
主題 | OFDM , Symbols , Discrete Fourier transforms , Bandwidth , Transmitters , Frequency division multiplexing , Receivers(en), Capacity , discrete Fourier transform (DFT) , discrete fractional Fourier transform (DFRFT) , faster-than-Nyquist (FTN) signaling(en), non-orthogonal frequency division multiplexing (NOFDM) , orthogonal frequency division multiplexing (OFDM) , spectral efficiency(en) | |||||||||
資源タイプ | ||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
資源タイプ | journal article | |||||||||
アクセス権 | ||||||||||
アクセス権 | open access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
著者 |
Yuto, Hama
× Yuto, Hama
× Hideki, Ochiai
e-Rad
20334576
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | We investigate the spectral efficiency of non-orthogonal frequency division multiplexing (NOFDM). NOFDM is regarded as a frequency-domain faster-than-Nyquist (FTN) signaling with block transmission, where each subcarrier is compressed in the frequency domain by utilizing the discrete fractional Fourier transform (DFRFT). Since pulse shaping filters are not employed, the effective bandwidth of the NOFDM signal should take into account the resulting out-of-band (OOB) radiation. Therefore, we derive a closed-form expression for the power spectral density (PSD) of the NOFDM signal with windowing for OOB reduction. Through numerical comparison, it is shown that NOFDM outperforms OFDM in view of the effective signal bandwidth if they are compared under the same number of subcarriers. On the other hand, by the capacity analysis based on the asymptotic spectral efficiency with a large number of subcarriers, we elucidate that NOFDM may not outperform OFDM from an information-theoretic perspective. | |||||||||
言語 | en | |||||||||
書誌情報 |
IEEE Transactions on Communications 巻 71, 号 11, p. 6246-6257, ページ数 12, 発行日 2023-08-01 |
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ISSN | ||||||||||
収録物識別子タイプ | EISSN | |||||||||
収録物識別子 | 15580857 | |||||||||
書誌レコードID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA0066773X | |||||||||
DOI | ||||||||||
関連タイプ | isIdenticalTo | |||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | https://doi.org/10.1109/TCOMM.2023.3300328 | |||||||||
著者版フラグ | ||||||||||
出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
出版者 | ||||||||||
出版者 | Institute of Electrical and Electronics Engineers |