Title :
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
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;
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
DOI :
10.1109/ATC.2008.4760609
