IEICE TRANSACTIONS on Communications
Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments
Summary :
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.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.5 pp.1466-1474
- Publication Date
- 2009/05/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E92.B.1466
- Type of Manuscript
- Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
- Category
Authors
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Keiichi KAMBARA, Hiroshi NISHIMOTO, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA, "Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1466-1474, May 2009, doi: 10.1587/transcom.E92.B.1466.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1466/_p
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@ARTICLE{e92-b_5_1466,
author={Keiichi KAMBARA, Hiroshi NISHIMOTO, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments},
year={2009},
volume={E92-B},
number={5},
pages={1466-1474},
abstract={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.},
keywords={},
doi={10.1587/transcom.E92.B.1466},
ISSN={1745-1345},
month={May},}
Copy
TY - JOUR
TI - Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments
T2 - IEICE TRANSACTIONS on Communications
SP - 1466
EP - 1474
AU - Keiichi KAMBARA
AU - Hiroshi NISHIMOTO
AU - Toshihiko NISHIMURA
AU - Takeo OHGANE
AU - Yasutaka OGAWA
PY - 2009
DO - 10.1587/transcom.E92.B.1466
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - 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.
ER -
English
