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Mixed H2/H8 power control with adaptive QoS for wireless communication networks

A distributed automatic control solution for power allocation of wireless communication networks is proposed in this paper. The objectif is to combine the best features of both conventional and opportunistic power control, namely, fairness and opportunism on the QoS provision. In a first step, the Distributed Power Control (DPC) problem is formulated as a Linear Quadratic Regulator (LQR) problem. Desired QoS and transmitter power are introduced in the model and an autonomous adaptive operation mode is designed to allow suitable operation under different network conditions. In the sequence, methods of mixed H2/H8 control are applied to provide robust, but not overconservative algorithms. Computer simulations illustrate the capability of the proposed algorithms in managing the trade-off between fairness and opportunism, so as their robustness with respect to practical impairments.