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

Kambara, Keiichi; Nishimoto, Hiroshi; Nishimura, Toshihiko; Ohgane, Takeo; Ogawa, Yasutaka

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

Kambara, Keiichi; Nishimoto, Hiroshi; Nishimura, Toshihiko et al.

IEICE Transactions on Communications, 2009, E92-B(5), 1466-1474

Permalink : https://hdl.handle.net/2115/42657

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/42657
タイトル	Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments
著者	Kambara, Keiichi ; Nishimoto, Hiroshi ; Nishimura, Toshihiko ; Ohgane, Takeo ; Ogawa, Yasutaka
著者名 Kambara, Keiichi
著者名 Nishimoto, Hiroshi
e-Rad_Researcher 70301934 著者名 Nishimura, Toshihiko
e-Rad_Researcher 10271636 著者名 Ohgane, Takeo
e-Rad_Researcher 70125293 著者名 Ogawa, Yasutaka
言語	英語
キーワード	fast fading
	single carrier transmission
	SC/MMSE-FDTE
	unique word
	subblock processing
発行日	2009-05-01
出版者	The Institute of Electronics, Information and Communication Engineers
収録物名	IEICE Transactions on Communications
巻(号)	E92-B(5)
ページ	1466-1474
記述	Special Section on Radio Access Techniques for 3G Evolution
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.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	copyright©2009 IEICE
PISSN	0916-8516
EISSN	1745-1345
NCID	AA10826261
関連情報	URI http://search.ieice.org/