Improved iterative detection for OFDM communication system with impulsive noise

Author

Chantaranotai, Somjai ; Supnithi, Pornchai

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

Volume

1

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

105

Lastpage

108

Abstract

Orthogonal frequency division-multiplexing (OFDM) is included in many communication standards to exploit the benefits of longer symbol duration which results in lower intersymbol interference and distributed power among subcarriers. One impediment to achieve theoretical performance is impulsive noise. This paper proposes the use of nonlinear blanking method jointly with frequency-domain equalization and iterative processing. The performance results show improvement of about 2 dB in bit error rate over the case without nonlinear blanking processing in OFDM system with frame structure similar to the DVB-T frame format.

Keywords

OFDM modulation; equalisers; error statistics; frequency-domain analysis; impulse noise; iterative methods; OFDM communication system; frequency-domain equalization; impulsive noise; intersymbol interference; iterative detection; nonlinear blanking method; orthogonal frequency division-multiplexing; Bit error rate; Blanking; Communication standards; Communication systems; Digital video broadcasting; Frequency conversion; Impedance; Intersymbol interference; Iterative methods; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on

Print_ISBN

0-7803-9538-7

Type

conf

DOI

10.1109/ISCIT.2005.1566809

Filename

1566809