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OFDMにおける摂動ベクトルを用いたPAPR抑圧に関する検討
名前 / ファイル | ライセンス | アクション |
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023061020007.pdf (6.0 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||||||||
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公開日 | 2020-08-19 | |||||||||||||||||||||||
タイトル | ||||||||||||||||||||||||
言語 | ja | |||||||||||||||||||||||
タイトル | OFDMにおける摂動ベクトルを用いたPAPR抑圧に関する検討 | |||||||||||||||||||||||
タイトル | ||||||||||||||||||||||||
言語 | ja-Kana | |||||||||||||||||||||||
タイトル | OFDM ニオケル セツドウ ベクトル オ モチイタ PAPR ヨクアツ ニカンスル ケントウ | |||||||||||||||||||||||
タイトル | ||||||||||||||||||||||||
言語 | en | |||||||||||||||||||||||
タイトル | A study on PAPR suppression using vector perturbation in OFDM | |||||||||||||||||||||||
言語 | ||||||||||||||||||||||||
言語 | jpn | |||||||||||||||||||||||
キーワード | ||||||||||||||||||||||||
主題 | 直交周波数分割多重, 摂動ベクトル 繰り返しアルゴリズム OFDM, Vector perturbation, PAPR, Iterative algorithm |
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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 | departmental bulletin paper | |||||||||||||||||||||||
ID登録 | ||||||||||||||||||||||||
ID登録 | 10.14988/00027354 | |||||||||||||||||||||||
ID登録タイプ | JaLC | |||||||||||||||||||||||
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 |
杉本, 靖直
× 杉本, 靖直× 衣斐, 信介
WEKO
28361
× 笹岡, 秀一
WEKO
15457
× 岩井, 誠人
WEKO
15455
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著者所属 | ||||||||||||||||||||||||
ja | ||||||||||||||||||||||||
杉本, 靖直 / Department of Electrical Engineering, Faculty of Science and Engineering, Doshisha University | ||||||||||||||||||||||||
著者所属 | ||||||||||||||||||||||||
ja | ||||||||||||||||||||||||
衣斐, 信介 / 同志社大学理工学部電子工学科准教授 | ||||||||||||||||||||||||
著者所属 | ||||||||||||||||||||||||
ja | ||||||||||||||||||||||||
笹岡, 秀一 / Department of Electrical Engineering, Faculty of Science and Engineering, Doshisha University | ||||||||||||||||||||||||
著者所属 | ||||||||||||||||||||||||
ja | ||||||||||||||||||||||||
岩井, 誠人 / 同志社大学理工学部電子工学科教授 | ||||||||||||||||||||||||
抄録 | ||||||||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||||||||
内容記述 | OFDM (Orthogonal Frequency Division Multiplexing) 伝送方式において,PAPR (Peak to Average Power Ratio) を低減する方式の一つとして拡大信号点を用いる方式が提案されている.この方式ではPAPRを最小化する拡大信号点を用いるサブキャリアの組み合わせを全探索法によって決定する.しかし,拡大信号点を用いるサブキャリアの組み合わせの候補数が多くなり,PAPRを評価する度に逆フーリエ変換をする必要があり,演算量が多くなることが問題である.本稿では,送信機側において拡大信号点を用いたサブキャリア候補全てのPAPRを比較するのではなく,PAPR抑圧効果の高いサブキャリアに逐次的に摂動ベクトルを加えていく繰り返しアルゴリズムを提案する.提案方式ではこのアルゴリズムにおいて,摂動ベクトルを加算するサブキャリアやピーク抑圧調査をする時系列シンボルを限定することにより,演算量の削減を実現した.計算機シミュレーション結果により,PAPRのCCDFから有効にピーク抑圧を実現しつつ,演算量を削減できることを明らかにする. | |||||||||||||||||||||||
言語 | ja | |||||||||||||||||||||||
抄録 | ||||||||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||||||||
内容記述 | In orthogonal frequency division multiplexing (OFDM), extended signal constellations have been designed for reducing the peak to average power ratio (PAPR). In this method, the combination of subcarriers using the expanded signal constellations that minimize PAPR is determined by an exhaustive search. However, the number of candidate subcarrier combinations grows, and it is necessary to perform the inverse fast Fourier transform (IFFT) every PAPR calculation process. In this paper, we propose an iterative algorithm that superposes arbitrary vector perturbations to subcarriers with high PAPR suppression capability without comparing PAPRs of all subcarrier candidates using expanded signal constellations. In the proposed method, the amount of computation burden is reduced by limiting the subcarriers to which perturbation vectors are added and investigating the time-series symbols for peak suppression. From computer simulation results demonstrate that the amount of computation can be reduced while peak suppression is effectively achieved from complementary cumulative distribution function (CCDF) of PAPR. | |||||||||||||||||||||||
言語 | en | |||||||||||||||||||||||
書誌情報 |
ja : 同志社大学ハリス理化学研究報告 en : The Harris science review of Doshisha University 巻 61, 号 2, p. 108-115, 発行日 2020-07-31 |
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出版者 | ||||||||||||||||||||||||
言語 | ja | |||||||||||||||||||||||
出版者 | 同志社大学ハリス理化学研究所 | |||||||||||||||||||||||
出版者(英) | ||||||||||||||||||||||||
言語 | en | |||||||||||||||||||||||
出版者 | Harris Science Research Institute of Doshisha University | |||||||||||||||||||||||
ISSN | ||||||||||||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||||||||||||
収録物識別子 | 21895937 | |||||||||||||||||||||||
書誌レコードID | ||||||||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||||||||
収録物識別子 | AA12716107 | |||||||||||||||||||||||
権利者情報 | ||||||||||||||||||||||||
権利者名 | 同志社大学ハリス理化学研究所 | |||||||||||||||||||||||
言語 | ja | |||||||||||||||||||||||
権利者名 | Harris Science Research Institute of Doshisha University | |||||||||||||||||||||||
言語 | en | |||||||||||||||||||||||
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関連タイプ | isFormatOf | |||||||||||||||||||||||
識別子タイプ | URI | |||||||||||||||||||||||
関連識別子 | https://doors.doshisha.ac.jp/opac/opac_link/bibid/SB12902196/?lang=0 | |||||||||||||||||||||||
言語 | ja | |||||||||||||||||||||||
関連名称 | 掲載刊行物所蔵情報へのリンク / Link to Contents | |||||||||||||||||||||||
フォーマット | ||||||||||||||||||||||||
内容記述タイプ | Other | |||||||||||||||||||||||
内容記述 | application/pdf | |||||||||||||||||||||||
出版タイプ | ||||||||||||||||||||||||
出版タイプ | VoR | |||||||||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||
日本十進分類法 | ||||||||||||||||||||||||
主題 | 547.5 |