On the performance of LDPC coded MC-CDMA in Rayleigh fading channels

Author

Xiong, Lei ; Tan, Zhenhui ; Wen, Yighong ; Chen, Xia

Author_Institution

Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., China

Volume

2

fYear

2005

Firstpage

1178

Abstract

In this paper, we evaluate the performance of LDPC coded MC-CDMA in Rayleigh fading channels. We derive an exact expression of the variance of multiuser interference and obtain the optimal maximum number of iterations in LDPC decoding. Compared to turbo coded MC-CDMA, the LDPC coded MC-CDMA has advantages in BER performance and complexity. The simulation results also show that the system using MMSEC outperforms the system using MRC in BER performance and complexity.

Keywords

Rayleigh channels; channel coding; code division multiple access; error statistics; interference suppression; multiuser channels; parity check codes; performance evaluation; BER performance; LDPC; MC-CDMA; Rayleigh fading channel; bit error rate; low density parity check code; multicarrier code division multiple access; multiuser interference; performance evaluation; Bit error rate; Diversity reception; Equalizers; Fading; Gaussian noise; Interference; Multicarrier code division multiple access; Parity check codes; Signal to noise ratio; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on

Print_ISBN

0-7803-9128-4

Type

conf

DOI

10.1109/MAPE.2005.1618132

Filename

1618132