NDLI: Capacity improvement of SC-FDMA Cooperative Relay Using subcarrier allocation

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Capacity improvement of SC-FDMA Cooperative Relay Using subcarrier allocation

Content Provider	Semantic Scholar
Author	Masayuki, Nakada Kazuki, Takeda Fumiyuki, Adachi
Copyright Year	2010
Abstract	あらまし次世代システムでは超高速,大容量の通信の実現が期待されているが,このような超高速通信では送信電力が膨大になってしまうという問題がある.この送信電力問題を解決する有力な手段にリレー伝送がある.本論文では,上りリンクシングルキャリア(SC)-周波数分割多元接続(FDMA)に協調リレーを適用したときのチャネル容量を明らかにしている.また,より大きな周波数ダイバーシチ効果を得るためには SC 信号スペクトルの分割とチャネル情報に基づく適応的なサブキャリア割当てが有効である.しかし,ピーク対平均電力比(PAPR)が増大してしまうという問題が発生する.そこで,スペクトル分割・サブキャリア割当てによるチャネル容量と PAPR とのトレードオフについて議論を行っている. キーワード協調リレー,SC-FDMA,適応型サブキャリア割当て Capacity improvement of SC-FDMA Cooperative Relay using subcarrier allocation Masayuki NAKADA Kazuki TAKEDA and Fumiyuki ADACHI Dept. of Electrical, Information and Physics Engineering, School of Engineering, Tohoku University Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8579, Japan E-mail: {nakada, kazuki}@mobile.ecei.tohoku.ac.jp, adachi@ecei.tohoku.ac.jp
Starting Page	239
Ending Page	244
Page Count	6
File Format	PDF HTM / HTML
Volume Number	109
Alternate Webpage(s)	http://www.mobile.ecei.tohoku.ac.jp/paper/pdf/rcs_2010/08_rcs_2010_nakada.pdf
Alternate Webpage(s)	https://www.mobile.ecei.tohoku.ac.jp/paper/pdf/rcs_2010/08_rcs_2010_nakada.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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