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Maximum Likelihood Synchronization of DS-CDMA Signals Transmitted over Multipath Channels

Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem) ; Fredrik Malmsten (Institutionen för signaler och system, Kommunikationssystem)
Proceedings IEEE International Conference on Communications, Atlanta, GA, Jun 07-11, 1998 Vol. 3 (1998), p. 1546-1550.
[Konferensbidrag, refereegranskat]

We propose a maximum likelihood approach for near-far robust synchronization of asynchronous direct-sequence code-division multiple access (DS-CDMA) systems operating over multipath channels. The algorithm is suitable for use in for instance a slotted system where each user transmits a short data burst with an embedded training sequence. The algorithm is shown to outperform the standard sliding correlator estimator. The Cramer-Rao bound is derived and is used to indicate the best performance that can be achieved by an unbiased estimator.

Denna post skapades 2006-09-12. Senast ändrad 2013-06-13.
CPL Pubid: 15914


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