Title :
Code acquisition of Markovian SS codes in a chip-synchronous DS-CDMA system
Author :
Jitsumatsu, Yutaka ; Eshima, Nobuoki ; Kohda, Tohru
Author_Institution :
Dept. of Comput. Sci. & Commun. Eng., Kyushu Univ., Fukuoka, Japan
fDate :
29 June-4 July 2003
Abstract :
A decorrelator for chip-synchronous DS-CDMA systems using Markovian SS codes, which makes observed data at each chip-time uncorrelated is proposed in this article. Moreover, using the decorrelator output a posteriori probability is calculated by applying a very simple expression.
Keywords :
Markov processes; code division multiple access; decorrelation; error statistics; maximum likelihood estimation; spread spectrum communication; synchronisation; Markovian SS codes; a-posteriori probability; chip-synchronous DS-CDMA system; code acquisition; decorrelator; direct sequence code division multiple access; Bit error rate; Correlators; Covariance matrix; Decorrelation; Delay effects; Gold; Maximum likelihood estimation; Multiaccess communication; Random variables; Zinc;
Conference_Titel :
Information Theory, 2003. Proceedings. IEEE International Symposium on
Print_ISBN :
0-7803-7728-1
DOI :
10.1109/ISIT.2003.1228464
