Power-Rate Allocation in DS/CDMA Systems Based on Discretized Verhulst Equilibrium

This paper proposes to extend the discrete Verhulst power equilibrium approach, previously suggested in [1], to the power-rate optimal allocation problem. Multirate users associated to different types of traffic are aggregated to distinct user' classes, with the assurance of minimum rate allocation per user and QoS. Herein, Verhulst power allocation algorithm of [1] was adapted to the DS/CDMA jointly power-rate control problem. The analysis was carried out taking into account static and dynamic channels, as well as the convergence time (number of iterations), quality of solution, in terms of the normalized mean squared error (NSE), when compared with the analytical solution based on interference matrix inversion, and the solution given by classical Foschini's algorithm [2] as well, besides the computational complexity analysis.