The problem of acquiring code synchronization in a CDMA cellular mobile network is addressed in this paper. The fundamental issue is to set a theoretical framework for the analysis of the acquisition subsystem that remains valid in the presence of fading and shadowing effects with specified coherence time. A multi-dwell architecture adopting the MAX/TC criterion is considered, and the acquisition performance is analyzed using both the direct approach and the flow-graph approach. Expressions for the acquisition time probability density function under different assumptions are given. The conditions under which the Markovian nature of the acquisition procedure can be assumed to be preserved in a fading channel are discussed. Closed form expressions for the mean and variance of the acquisition time are reported.

Corazza, G.e., Polydoros, A. (1998). Code acquisition in CDMA cellular mobile networks. Part I: Theory. In IEEE International symposium on spread spectrum techniques & applications (pp.454-457). IEEE, Piscataway, NJ, United States.

Code acquisition in CDMA cellular mobile networks. Part I: Theory

CORAZZA, GIOVANNI EMANUELE;
1998-01-01

Abstract

The problem of acquiring code synchronization in a CDMA cellular mobile network is addressed in this paper. The fundamental issue is to set a theoretical framework for the analysis of the acquisition subsystem that remains valid in the presence of fading and shadowing effects with specified coherence time. A multi-dwell architecture adopting the MAX/TC criterion is considered, and the acquisition performance is analyzed using both the direct approach and the flow-graph approach. Expressions for the acquisition time probability density function under different assumptions are given. The conditions under which the Markovian nature of the acquisition procedure can be assumed to be preserved in a fading channel are discussed. Closed form expressions for the mean and variance of the acquisition time are reported.
International symposium on spread spectrum techniques & applications, IEEE ISSSTA. Part 3
Sun City, S Afr
1998
5th
IEEE
Rilevanza internazionale
1998
Settore ING-INF/03 - TELECOMUNICAZIONI
English
cellular radio systems; communication channels (information theory); fading (radio); markov processes; probability density function; signal encoding; synchronization; code acquisition; multi-dwell architecture; code division multiple access
Intervento a convegno
Corazza, G.e., Polydoros, A. (1998). Code acquisition in CDMA cellular mobile networks. Part I: Theory. In IEEE International symposium on spread spectrum techniques & applications (pp.454-457). IEEE, Piscataway, NJ, United States.
Corazza, Ge; Polydoros, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/6243
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