Browse > Article
http://dx.doi.org/10.6109/JKIICE.2009.13.7.1328

Performance Prediction of Interleave-Division Multiple Access Scheme based on Log-likelihood Ratio (LLR) for An Efficient 4G Mobile Radio System  

Chung, Yeon-Ho (부경대학교 전자컴퓨터정보통신공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.7, 2009 , pp. 1328-1334 More about this Journal
Abstract
This paper presents a prediction mechanism of performance for an efficient interleave-division multiple access (IDMA) scheme that is being considered as 4th generation mobile radio system. The scheme is based upon log-likelihood ratio (LLR) to predict the performance of the IDMA. The conventional IDMA system simply passes the LLR values to a coarse estimation process in the receiver over a pre-defined number of iterations for an acceptable performance. The proposed IDMA system uses the LLRs to predict its BER performance and thus the iterative operation at the receiver can significantly be reduced when the performance attains an acceptable level. Performance evaluation shows that the proposed scheme of the IDMA with the LLRs used for the prediction provides a comparable BER performance. The use of the LLRs can facilitate an efficient design of the IDMA system that is a strong candidate system for 4G mobile radio systems.
Keywords
Interleave-Division Multiple Access; Log-likelihood Ratio; Performance Prediction; Multiple Access;
Citations & Related Records
연도 인용수 순위
  • Reference
1 http://www.mathworks.com
2 Ping, Li, Liu, L., Wu, Keying and Leung, W.K.," Interleave-Division Multiple-Access, " IEEE Trans. on Wireless Comm., Vol.5, No.4, pp. 938-947, April 2006   DOI   ScienceOn
3 Ping, Li, "Interleave-division multiple access and chip-by-chip iterative multi- user detection," IEEE Comm. Mag. Vol. 43, No.6, pp. S19-S23, June 2005   DOI   ScienceOn
4 Wang, X. and Poor H.V., "Iterative (Turbo) soft interference cancellation and decoding for coded CDMA," IEEE Trans. Comm. Vol.7, No.7, pp.1046-1061, July 1999
5 Li, C., Li, K., Wang, X. and Ping, L., "Optimal IDM-MISO transmit strategy with partial CSI at transmitter," Proc. 40thAnnual Conf. on Information Sciences and Systems (CISS'06), Princeton, N.J. Mar. 2006
6 Wu, H., Ping L. and Perotti A., "User- specific chip-level interleaver design for IDMA systems," IEE Elec. Lett. Vol.42, No.4, Feb. 2006
7 Kusume, K. and Bauch, G., "Simple construction of multiple interleavers: cyclically shifting a single interleaver," IEEE Trasn. Comm. Vol.56, No.9, pp.1394-1397, Sept. 2008   DOI   ScienceOn