This paper proposes an analytical study that aims at evaluating the power-control error statistics in wireless direct-sequence 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 correlation 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 properties of the fading is also proposed, and its performance is analyzed in terms of power-control error statistics. Rayleigh and Rice frequency-selective channel models, which involve the use of a diversity 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.
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|Titolo:||On the Analytical Evaluation of Closed-Loop Power Control Error Statistics in DS-CDMA Cellular Systems|
|Citazione:||Abrardo, A., & Sennati, D. (2000). On the Analytical Evaluation of Closed-Loop Power Control Error Statistics in DS-CDMA Cellular Systems. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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