Performance of low-density parity-check codes with 16-QAM in fading channels

Author

Sun, Shao-Hui ; Hui, Jun-hong ; Wang, Xin-Mei

Author_Institution

Lab. of Integrated Service Networks, Xidian Univ., Xi´´an, China

fYear

2003

fDate

27-29 March 2003

Firstpage

269

Lastpage

272

Abstract

The rate design rules for the multilevel coding (MLC) are studied over the Rayleigh fading channel. By simulations on 16-QAM and Ungerboeck mapping, it is speculated that the coding exponent rule is yet the best for finite length. The MLC scheme using low-density parity-check (LDPC) codes performs within 2dB above the capacity limit at the bit error rate 10-5 for bandwidth efficiency 2-bits/symbol in the fully interleaved channel with channel state information. LDPC schemes suffer less signal-to-noise ratio penalty in correlated channels.

Keywords

error detection codes; fading channels; parity check codes; 16-QAM; Rayleigh fading channel; Ungerboeck mapping; bandwidth efficiency; bit error rate; channel state information; coding exponent rule; correlated channels; fading channels; low-density parity-check codes; multilevel coding; rate design rules; signal-to-noise ratio penalty; simulations; AWGN; Bandwidth; Channel state information; Decoding; Fading; Intelligent networks; Parity check codes; Rayleigh channels; Signal design; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Information Networking and Applications, 2003. AINA 2003. 17th International Conference on

Print_ISBN

0-7695-1906-7

Type

conf

DOI

10.1109/AINA.2003.1192886

Filename

1192886