IEICE TRANSACTIONS on Communications
Pilot Symbol Aided MAP-Based 3D Channel Estimation for Multi-User MIMO-OFDM Systems
Summary :
This paper describes a novel pilot symbol aided up-link channel estimation scheme for a multi-user MIMO-OFDM system. A novel pilot-symbol pattern is proposed in order to overcome the interference from the multiple antennas of each user. Based on these periodically inserted pilot symbols, the channel state information (CSI) for each entire OFDM data sequence is reconstructed by using the maximum a-posteriori probability (MAP) estimation algorithm. The MAP estimation algorithm exploits channel correlations in time, frequency and space domains, which are obtained from a frequency-selective and time-variant Rayleigh fading channel model with multiple clusters and a defined complex direction of arrival (DOA). Simulation results demonstrate that it achieves almost the same performance as the ideal case by using the MAP-based estimation scheme with the well designed pilot-symbol pattern. Moreover, this model-based estimation scheme is also robust to errors in the estimation of its parameters. It will become one of the strong candidates for use in next generation mobile communication systems.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E89-B No.3 pp.801-808
- Publication Date
- 2006/03/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1093/ietcom/e89-b.3.801
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Keyword
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Junyi WANG, Kiyomichi ARAKI, "Pilot Symbol Aided MAP-Based 3D Channel Estimation for Multi-User MIMO-OFDM Systems" in IEICE TRANSACTIONS on Communications,
vol. E89-B, no. 3, pp. 801-808, March 2006, doi: 10.1093/ietcom/e89-b.3.801.
Abstract: This paper describes a novel pilot symbol aided up-link channel estimation scheme for a multi-user MIMO-OFDM system. A novel pilot-symbol pattern is proposed in order to overcome the interference from the multiple antennas of each user. Based on these periodically inserted pilot symbols, the channel state information (CSI) for each entire OFDM data sequence is reconstructed by using the maximum a-posteriori probability (MAP) estimation algorithm. The MAP estimation algorithm exploits channel correlations in time, frequency and space domains, which are obtained from a frequency-selective and time-variant Rayleigh fading channel model with multiple clusters and a defined complex direction of arrival (DOA). Simulation results demonstrate that it achieves almost the same performance as the ideal case by using the MAP-based estimation scheme with the well designed pilot-symbol pattern. Moreover, this model-based estimation scheme is also robust to errors in the estimation of its parameters. It will become one of the strong candidates for use in next generation mobile communication systems.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.3.801/_p
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@ARTICLE{e89-b_3_801,
author={Junyi WANG, Kiyomichi ARAKI, },
journal={IEICE TRANSACTIONS on Communications},
title={Pilot Symbol Aided MAP-Based 3D Channel Estimation for Multi-User MIMO-OFDM Systems},
year={2006},
volume={E89-B},
number={3},
pages={801-808},
abstract={This paper describes a novel pilot symbol aided up-link channel estimation scheme for a multi-user MIMO-OFDM system. A novel pilot-symbol pattern is proposed in order to overcome the interference from the multiple antennas of each user. Based on these periodically inserted pilot symbols, the channel state information (CSI) for each entire OFDM data sequence is reconstructed by using the maximum a-posteriori probability (MAP) estimation algorithm. The MAP estimation algorithm exploits channel correlations in time, frequency and space domains, which are obtained from a frequency-selective and time-variant Rayleigh fading channel model with multiple clusters and a defined complex direction of arrival (DOA). Simulation results demonstrate that it achieves almost the same performance as the ideal case by using the MAP-based estimation scheme with the well designed pilot-symbol pattern. Moreover, this model-based estimation scheme is also robust to errors in the estimation of its parameters. It will become one of the strong candidates for use in next generation mobile communication systems.},
keywords={},
doi={10.1093/ietcom/e89-b.3.801},
ISSN={1745-1345},
month={March},}
Copy
TY - JOUR
TI - Pilot Symbol Aided MAP-Based 3D Channel Estimation for Multi-User MIMO-OFDM Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 801
EP - 808
AU - Junyi WANG
AU - Kiyomichi ARAKI
PY - 2006
DO - 10.1093/ietcom/e89-b.3.801
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2006
AB - This paper describes a novel pilot symbol aided up-link channel estimation scheme for a multi-user MIMO-OFDM system. A novel pilot-symbol pattern is proposed in order to overcome the interference from the multiple antennas of each user. Based on these periodically inserted pilot symbols, the channel state information (CSI) for each entire OFDM data sequence is reconstructed by using the maximum a-posteriori probability (MAP) estimation algorithm. The MAP estimation algorithm exploits channel correlations in time, frequency and space domains, which are obtained from a frequency-selective and time-variant Rayleigh fading channel model with multiple clusters and a defined complex direction of arrival (DOA). Simulation results demonstrate that it achieves almost the same performance as the ideal case by using the MAP-based estimation scheme with the well designed pilot-symbol pattern. Moreover, this model-based estimation scheme is also robust to errors in the estimation of its parameters. It will become one of the strong candidates for use in next generation mobile communication systems.
ER -
English
