Performance Analysis of OFDM-IDMA System Based on QC-LDPC

Author

Wang, Zhen-hua ; Yu, Ge-fei ; Zhang, You-peng ; Lin, Yuan-fu ; Yang, Cong ; Liu, Da-wei

Author_Institution

Chongqing Commun. Inst., Chongqing, China

Volume

2

fYear

2012

fDate

23-25 March 2012

Firstpage

99

Lastpage

102

Abstract

To meet the need of high rate and high reliability for next generation of wireless mobile communication system, in this paper, we designed a new communications system of OFDM-IDMA based on QC-LDPC. The performance under different coding rate, different length of frame is analyzed, and we also compared the performance with the system based on convolutional codes, the simulation results show that this new system can provide greater coding gain and better communications service, it is very suitable for high-speed data transmission and also has very far-reaching significance for the future of digital communication systems.

Keywords

OFDM modulation; convolutional codes; cyclic codes; mobile communication; parity check codes; reliability; OFDM-IDMA system; QC-LDPC; coding gain; communications service; convolutional codes; high-speed data transmission; interleave division multiple access; next generation; orthogonal frequency division multiplexing; quasicyclic low parity check codes; reliability; wireless mobile communication; Channel coding; Convolutional codes; Decoding; Iterative decoding; Reliability; Multi-users detection; communication technology; interleave division multiple access (IDMA); orthogonal frequency division multiplexing (OFDM); quasi cyclic low density parity check codes (QC-LDPC);

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Electronics Engineering (ICCSEE), 2012 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4673-0689-8

Type

conf

DOI

10.1109/ICCSEE.2012.291

Filename

6187974