Design of Channel Estimation Filters for Pilot Channel Based DS-CDMA Systems

Ji-Woong CHOI; Yong-Hwan LEE

Design of Channel Estimation Filters for Pilot Channel Based DS-CDMA Systems

Ji-Woong CHOI, Yong-Hwan LEE

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The accuracy of channel estimation significantly affects the performance of coherent receiver in a DS-CDMA system. The receiver performance can be improved if an appropriate channel estimation filter is used according to the channel condition. In this paper, we consider the design of channel estimation filters for pilot channel based DS-CDMA systems. When a moving average (MA) FIR filter is used as the channel estimation filter (CEF), the tap size is optimized by minimizing the mean squared error of the estimated channel impulse response. Finally, the analytic design is verified by computer simulation. Numerical results show that the optimum MA FIR CEF provides near optimum performance, i.e., quite similar to that with the use of Wiener filter.

Publication: IEICE TRANSACTIONS on Communications Vol.E87-B No.2 pp.227-233

Publication Date: 2004/02/01

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Type of Manuscript: PAPER

Category: Wireless Communication Technology

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Ji-Woong CHOI, Yong-Hwan LEE, "Design of Channel Estimation Filters for Pilot Channel Based DS-CDMA Systems" in IEICE TRANSACTIONS on Communications, vol. E87-B, no. 2, pp. 227-233, February 2004, doi: .
Abstract: The accuracy of channel estimation significantly affects the performance of coherent receiver in a DS-CDMA system. The receiver performance can be improved if an appropriate channel estimation filter is used according to the channel condition. In this paper, we consider the design of channel estimation filters for pilot channel based DS-CDMA systems. When a moving average (MA) FIR filter is used as the channel estimation filter (CEF), the tap size is optimized by minimizing the mean squared error of the estimated channel impulse response. Finally, the analytic design is verified by computer simulation. Numerical results show that the optimum MA FIR CEF provides near optimum performance, i.e., quite similar to that with the use of Wiener filter.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e87-b_2_227/_p

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@ARTICLE{e87-b_2_227,
author={Ji-Woong CHOI, Yong-Hwan LEE, },
journal={IEICE TRANSACTIONS on Communications},
title={Design of Channel Estimation Filters for Pilot Channel Based DS-CDMA Systems},
year={2004},
volume={E87-B},
number={2},
pages={227-233},
abstract={The accuracy of channel estimation significantly affects the performance of coherent receiver in a DS-CDMA system. The receiver performance can be improved if an appropriate channel estimation filter is used according to the channel condition. In this paper, we consider the design of channel estimation filters for pilot channel based DS-CDMA systems. When a moving average (MA) FIR filter is used as the channel estimation filter (CEF), the tap size is optimized by minimizing the mean squared error of the estimated channel impulse response. Finally, the analytic design is verified by computer simulation. Numerical results show that the optimum MA FIR CEF provides near optimum performance, i.e., quite similar to that with the use of Wiener filter.},
keywords={},
doi={},
ISSN={},
month={February},}

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TY - JOUR
TI - Design of Channel Estimation Filters for Pilot Channel Based DS-CDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 227
EP - 233
AU - Ji-Woong CHOI
AU - Yong-Hwan LEE
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2004
AB - The accuracy of channel estimation significantly affects the performance of coherent receiver in a DS-CDMA system. The receiver performance can be improved if an appropriate channel estimation filter is used according to the channel condition. In this paper, we consider the design of channel estimation filters for pilot channel based DS-CDMA systems. When a moving average (MA) FIR filter is used as the channel estimation filter (CEF), the tap size is optimized by minimizing the mean squared error of the estimated channel impulse response. Finally, the analytic design is verified by computer simulation. Numerical results show that the optimum MA FIR CEF provides near optimum performance, i.e., quite similar to that with the use of Wiener filter.
ER -