Channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system

Yu Imaoka; Hiroshi Obata; Yohei Suzuki; Yukitoshi Sanada

doi:10.1587/transcom.E92.B.946

Channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system

Yu Imaoka, Hiroshi Obata, Yohei Suzuki, Yukitoshi Sanada

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The IEEE802.11b WLAN standard employs directsequence/spread-spectrum (DS/SS) modulation. With a fractional sampling RAKE receiver, it is possible to achieve diversity and reduce the BER in DS/SS communication. In order to realize the diversity through fractional sampling, the impulse response of the channel must be estimated. In this paper, a channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system is investigated through a computer simulation and an experiment. In order to estimate the impulse response of the channel, a pseudo-inverse matrix with a threshold is employed. Numerical results indicate that the channel can be estimated with an optimum threshold in both the simulation and the experiment.

Original language	English
Pages (from-to)	946-953
Number of pages	8
Journal	IEICE Transactions on Communications
Volume	E92-B
Issue number	3
DOIs	https://doi.org/10.1587/transcom.E92.B.946
Publication status	Published - 2009 Mar

Keywords

Channel estimation
DS/SS
Fractional sampling
IEEE802.11b
Pseudo-inverse matrix

ASJC Scopus subject areas

Software
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1587/transcom.E92.B.946

Cite this

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abstract = "The IEEE802.11b WLAN standard employs directsequence/spread-spectrum (DS/SS) modulation. With a fractional sampling RAKE receiver, it is possible to achieve diversity and reduce the BER in DS/SS communication. In order to realize the diversity through fractional sampling, the impulse response of the channel must be estimated. In this paper, a channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system is investigated through a computer simulation and an experiment. In order to estimate the impulse response of the channel, a pseudo-inverse matrix with a threshold is employed. Numerical results indicate that the channel can be estimated with an optimum threshold in both the simulation and the experiment.",

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AU - Imaoka, Yu

AU - Obata, Hiroshi

AU - Suzuki, Yohei

AU - Sanada, Yukitoshi

PY - 2009/3

Y1 - 2009/3

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AB - The IEEE802.11b WLAN standard employs directsequence/spread-spectrum (DS/SS) modulation. With a fractional sampling RAKE receiver, it is possible to achieve diversity and reduce the BER in DS/SS communication. In order to realize the diversity through fractional sampling, the impulse response of the channel must be estimated. In this paper, a channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system is investigated through a computer simulation and an experiment. In order to estimate the impulse response of the channel, a pseudo-inverse matrix with a threshold is employed. Numerical results indicate that the channel can be estimated with an optimum threshold in both the simulation and the experiment.

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Channel estimation scheme for a RAKE receiver with fractional sampling in IEEE802.11b WLAN system

Abstract

Keywords

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