Maximum-likelihood subchannel detection in forward links for multicarrier DS CDMA system

Citation
Jj. Li et al., Maximum-likelihood subchannel detection in forward links for multicarrier DS CDMA system, IEICE TR CO, E84B(11), 2001, pp. 2924-2931
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEICE TRANSACTIONS ON COMMUNICATIONS
ISSN journal
0916-8516 → ACNP
Volume
E84B
Issue
11
Year of publication
2001
Pages
2924 - 2931
Database
ISI
SICI code
0916-8516(200111)E84B:11<2924:MSDIFL>2.0.ZU;2-O
Abstract
In this paper, we consider the subchannel detection problem in forward link s for the multicarrier DS-CDMA system when some different subchannel alloca tion policies are used. An optimal subchannel decision algorithm is propose d based on the maximum-likelihood (ML) criterion. Theoretical analysis and simulation results are presented. Furthermore, we discuss the parameter sel ection problem on the length of the training sequences in the subchannel al location scheme in [8], [12] by using the proposed ML detection algorithm. The results show that the subchannel allocation scheme in [8], [12] is feas ible since only a few symbols overhead is required.