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Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments

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タイトル: Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments
著者: Kambara, Keiichi 著作を一覧する
Nishimoto, Hiroshi 著作を一覧する
Nishimura, Toshihiko 著作を一覧する
Ohgane, Takeo 著作を一覧する
Ogawa, Yasutaka 著作を一覧する
キーワード: fast fading
single carrier transmission
unique word
subblock processing
発行日: 2009年 5月 1日
出版者: The Institute of Electronics, Information and Communication Engineers
誌名: IEICE Transactions on Communications
巻: E92-B
号: 5
開始ページ: 1466
終了ページ: 1474
抄録: Frequency-domain equalization (FDE) has been studied for suppressing inter-symbol interference (ISI) due to frequency selective fading in single carrier systems. When a high-mobility terminal is assumed in the system, channel transition within an FDE block cannot be ignored. The ISI reduction performance of FDE degrades since the cyclicity of the channel matrix is lost. To solve this problem, a method of dividing the received data block into multiple subblocks has been proposed, where pseudo cyclic prefix (CP) processing is introduced to realize periodicity in each subblock. In this method, the performance is degraded by the inherently-inaccurate pseudo CP. In this paper, we study the application of frequency-domain turbo equalization (FDTE) to subblock processing for improving the accuracy of pseudo CP. The simulation results show that FDTE with subblock processing yields remarkable performance improvements.
記述: Special Section on Radio Access Techniques for 3G Evolution
Rights: copyright©2009 IEICE
Relation (URI):
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 西本 浩


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