On pilot pattern design for PSAM-OFDM system

Author

Zhang, Wei ; Xia, Xiang-Gen ; Ching, P.C.

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China

Volume

5

fYear

2004

fDate

23-26 May 2004

Abstract

Pilot symbol assisted modulation (PSAM) of subcarriers is an attractive scheme for high data-rate OFDM transmission systems and has been widely used in broadcasting systems like DVB-T. In this paper, a new and simple pilot pattern for PSAM-OFDM system operated in the mobile communication environment is proposed and analyzed in terms of its bit error rate. Analytical and simulation results show that the proposed clustered pilot pattern for OFDM channel estimation gives a better performance than the conventional equally spaced pilot pattern in fading channel, yet without sacrificing the bandwidth efficiency.

Keywords

OFDM modulation; channel estimation; fading channels; least mean squares methods; mobile communication; signal detection; DVB-T; OFDM channel estimation; OFDM transmission systems; PSAM-OFDM system; bandwidth efficiency; bit error rate; broadcasting systems; clustered pilot pattern; fading channel; mobile communication environment; pilot pattern design; pilot symbol assisted modulation; subcarriers; Analytical models; Bandwidth; Bit error rate; Channel estimation; Digital video broadcasting; Fading; Mobile communication; OFDM modulation; Pattern analysis; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on

Print_ISBN

0-7803-8251-X

Type

conf

DOI

10.1109/ISCAS.2004.1329599

Filename

1329599