Title :
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
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);
Conference_Titel :
Computer Science and Electronics Engineering (ICCSEE), 2012 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-0689-8
DOI :
10.1109/ICCSEE.2012.291
