Turbo ICI cancellation and LDPC decoding for OFDM systems

Author

Tseng, Shu-Ming ; Kuo, Yu-Chin ; Hsu, Yueh-Teng

Author_Institution

Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taipei

fYear

2008

fDate

6-9 Oct. 2008

Firstpage

405

Lastpage

408

Abstract

We apply LDPC codes for turbo inter-carrier interference (ICI) cancellation (channel detecting) and decoding in OFDM systems due to mobility of channels. The simulation result shows that the proposed turbo ICI cancellation and sum-product algorithm decoding of LDPC coded OFDM systems can achieve the better error rate performance than turbo ICI cancellation and BCJR decoding of convolutional coded OFDM systems when the codeword length is 816 bits.

Keywords

OFDM modulation; channel coding; convolutional codes; decoding; fading channels; intercarrier interference; parity check codes; product codes; time-varying channels; turbo codes; LDPC decoding; OFDM systems; channel coding; convolution code; inter-carrier interference cancellation; low density parity check codes; sum-product algorithm decoding; time-varying fading channels; turbo ICI cancellation; word length 816 bit; Binary phase shift keying; Decoding; Digital video broadcasting; Fading; Fast Fourier transforms; Interference cancellation; Multiaccess communication; Multiple access interference; OFDM; Parity check codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications, 2008. ATC 2008. International Conference on

Conference_Location

Hanoi

Print_ISBN

978-1-4244-2680-5

Electronic_ISBN

978-1-4244-2681-2

Type

conf

DOI

10.1109/ATC.2008.4760609

Filename

4760609