A novel uplink channel estimation in OFDM-CDMA systems

Author

Kan Zheng ; Zheng, Kan ; Wang, Wenbo

Author_Institution

Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China

Volume

50

Issue

1

fYear

2004

fDate

2/1/2004 12:00:00 AM

Firstpage

125

Lastpage

129

Abstract

Orthogonal frequency division multiplexing-code division multiplex access (OFDM-CDMA) is one of the best candidates for the future broadband wireless multimedia communication systems. This paper proposes a novel channel estimation algorithm for OFDM-CDMA systems on the uplink. With reasonable constraint and well-designed preambles for each user, the DFT-based uplink channel estimation algorithm can achieve good estimation accuracy without sacrificing much system overhead. Computer simulation demonstrates effectiveness of this method and conclusion is followed.

Keywords

OFDM modulation; channel estimation; code division multiple access; discrete Fourier transforms; radio links; DFT; OFDM-CDMA systems; broadband wireless multimedia communication system; code division multiple access; discrete Fourier transform; orthogonal frequency division multiplexing; uplink channel estimation; Broadband communication; Channel estimation; Digital audio broadcasting; Downlink; Fading; Frequency division multiplexing; Frequency estimation; Multiaccess communication; OFDM modulation; Wireless communication;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2004.1277851

Filename

1277851