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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 49, NO. 6, NOVEMBER 2000 2071 On the Analytical Evaluation of Closed-Loop
 

Summary: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 49, NO. 6, NOVEMBER 2000 2071
On the Analytical Evaluation of Closed-Loop
Power-Control Error Statistics in DS-CDMA Cellular
Systems
Andrea Abrardo, Member, IEEE and David Sennati, Student Member, IEEE
Abstract--This paper proposes an analytical study that aims at
evaluating the power-control error statistics in wireless direct-se-
quence code-division multiple-access (DS-CDMA) cellular systems
based on an ideal variable step closed-loop power-control scheme.
In particular, the cumulative distribution function and the corre-
lation coefficient of the power control error are derived through
a first-order Taylor expansion of the received signal envelope. A
novel power-control scheme that exploits the autocorrelation prop-
erties of the fading is also proposed, and its performance is ana-
lyzed in terms of power-control error statistics. Rayleigh and Rice
frequency-selective channel models, which involve the use of a di-
versity RAKE receiver at the base station, have been taken into
account. The proposed analytical approach specifically applies to
CDMA systems. A method that aims at estimating the capacity of
a DS-CDMA cellular network is given in the last part of this paper.

  

Source: Abrardo, Andrea - Dipartimento di Ingegneria dell'Informazione, UniversitÓ di Siena

 

Collections: Engineering; Computer Technologies and Information Sciences