Analysis of recursive systematic convolutional turbo codes in MB-OFDM UWB with channel estimation

Author

Ahmad, Norulhusna ; S-Yusof, S. Kamilah ; Fisal, Norsheila

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia

fYear

2010

fDate

5-8 Dec. 2010

Firstpage

137

Lastpage

141

Abstract

Ultra wideband (UWB) system requires high data rate transmission for a short wireless link application. The application of turbo codes in the system will improve the bit error rate (BER) performance. In this paper, the analysis of recursive systematic convolutional (RSC) turbo codes in the multiband orthogonal frequency division multiplexing (MB-OFDM) will be investigated in UWB channel with channel estimation. There are two types of channel estimation considered in the analysis which are Least Square (LS) estimation and Discrete Fourier Transform (DFT) based channel estimation. The effect of choosing an appropriate generator will be discussed as well as the effect of channel interleaver on the system in these two different channel estimation. The simulation result shows better error performance in the system using UWB channel interleaver compare to random interleaver using DFT based channel estimation.

Keywords

OFDM modulation; channel coding; channel estimation; convolutional codes; discrete Fourier transforms; error statistics; interleaved codes; least squares approximations; radio links; recursive estimation; turbo codes; ultra wideband communication; wireless channels; BER; DFT; MB-OFDM UWB channel; RSC turbo code; bit error rate; channel estimation; channel interleaver; discrete Fourier transform; least square estimation; multiband orthogonal frequency division multiplexing; recursive systematic convolutional turbo code; short wireless link application; Bit error rate; Channel estimation; Convolutional codes; Discrete Fourier transforms; Fading; OFDM; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Applications and Industrial Electronics (ICCAIE), 2010 International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-9054-7

Type

conf

DOI

10.1109/ICCAIE.2010.5735062

Filename

5735062