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Subblock processing in MMSE-FDE under fast fading environments

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Title: Subblock processing in MMSE-FDE under fast fading environments
Authors: Kambara, Keiichi Browse this author
Nishimoto, Hiroshi Browse this author →KAKEN DB
Nishimura, Toshihiko Browse this author
Ohgane, Takeo Browse this author
Ogawa, Yasutaka Browse this author →KAKEN DB
Keywords: fast fading
single carrier transmission
unique word
subblock processing
Issue Date: Feb-2008
Publisher: IEEE
Journal Title: IEEE Journal on Selected Areas in Communications
Volume: 26
Issue: 2
Start Page: 359
End Page: 365
Publisher DOI: 10.1109/JSAC.2008.080212
Abstract: Frequency domain equalization (FDE) has been studied for reducing inter-symbol interference (ISI) caused by frequency selective fading in single carrier systems. When a high-mobility terminal exists in the system, the channel state may change within a DFT block. Then, the ISI reduction performance of FDE degrades since cyclicity of the channel matrix is lost. We propose to divide a received data block into multiple subblocks to decrease the channel transition within the DFT block in fast fading environments. Also, to satisfy periodicity of the received signal in each subblock, we introduce a pseudo cyclic prefix technique. The results of numerical analysis show that the proposed method can effectively decrease the error floor in fast fading environments.
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Type: article
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 神原 恵一

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