An Analytical Approach for Closed-Loop Power Control Error Estimations in CDMA Cellular Systems

—This paper proposes an analytical study which aims at evaluating the received power statistics in DS-CDMA cellular systems which use a closed-loop power control scheme to compensate for fast multipath fading. The effects of a limited transmission power at the mobile terminals have been also investigated. This study is based on a first order Taylor expansion of the fast fading fluctuations. The accuracy of the obtained results has been verified through computer simulations. Classical frequency-selective channel models have been taken into account which involve the use of a diversity RAKE receiver at the base station. Finally, the system capacity is evaluated under different environmental conditions.

• Type: Conference
• Year: 2000
• Where: ICC
• Authors: Andrea Abrardo, Giuliano Benelli, Giovanni Giambene, David Sennati
• Keywords: Closed-loop Power Control, Communications, DS-CDMA Cellular Systems, Fast Fading fluctuations, ICC 2000