Reverse-link Power Allocation with Distributed Dynamic Channel Assignment in Mobile Cellular Systems

Abstract

In this paper, assuming Direct Stage Code Division Multiple Access (DS-CDMA) [1], the author evaluate the throughput performance of turbo coded ARQ schemes over frequency-selective Rayleigh fading channel with antenna diversity reception and Rake combining. The theoretical expression for the turbo code in the presence of multiple channels was derived and the throughput performance evaluated by computer simulations firstly for ideal channel estimation and later compared with a practical channel estimation scheme called weighted multi-slot averaging (WMSA) channel estimation [2]. Studying the effect of various system parameters like the frame length, the fading rate, the spreading factor, the number of diversity antennas, the number of transmissions, number of users and propagation parameters like the fading rate and the power delay profile of the multipath channel (number of paths and profile shape) is the major contribution of this work.