CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Applications of Maximum Likelihood Algorithm in Asynchronous CDMA Systems

Pei Xiao (Institutionen för signaler och system, Kommunikationssystem) ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem)
2002 IEEE SEVENTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, ISSSTA'2002, SEP 02-05, Prague, Czech Republic Vol. 1 (2002), p. 208-213.
[Konferensbidrag, refereegranskat]

In this paper, we treat the problems of propagation delay and channel estimation as well as data detection of orthogonally modulated signals in asynchronous DS-CDMA system over fading channels using the maximum likelihood (ML) approach. The overwhelming computational complexity of the ML algorithm makes it unfeasible for implementation. The emphasis of this paper is to reduce its complexity by some approximation methods. The derived approximative ML schemes are compared with conventional algorithms as well as some others, e.g., the PIC for data detection and the subspace-based algorithm for acquisition.

Nyckelord: cdma



Denna post skapades 2006-09-12. Senast ändrad 2013-06-10.
CPL Pubid: 15048

 

Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem (1900-2017)

Ämnesområden

Information Technology

Chalmers infrastruktur