Title :
IDMA System with Chip Accumulation for Partial Users
Author :
Chen, Zhuo ; Song, Guanghui ; Cheng, Jun ; Watanabe, Yoichiro
Author_Institution :
Dept. of Intell. Inf. Eng. & Sci., Doshisha Univ., Kyoto, Japan
Abstract :
An uncoded IDMA system with chip accumulation for partial users is proposed. The rate-1 accumulators are employed for partial users. Simulation gives an optimal number Ks of partial users for K-user uncoded IDMA system with the lowest BER. Simulation results show that the performance of the proposed system is improved, compared with the conventional IDMA system, especially for few users and in high Eb/N0 levels.
Keywords :
error statistics; interleaved codes; multi-access systems; BER; K-user uncoded IDMA system; chip accumulation; interleave-division multiple-access; rate-1 accumulators; AWGN; Bit error rate; Iterative decoding; Receivers; Simulation; Transmitters; IDMA; chip accumulation; multiple access;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2011 International Conference on
Conference_Location :
Shenzhen, Guangdong
Print_ISBN :
978-1-61284-289-9
DOI :
10.1109/ICICTA.2011.425
