Joint optimization of radio parameters in HSDPA

In this paper we propose two contributions to the field of cross-layer optimization for third generation (3G) mobile communication systems. The first chapter derives an analytical bijective system model for the quality of service parameters throughput and delay in an HSDPA system. Link level simulations reveal an excellent match of the new model components. In the second part, the derived model is used to design a cross-layer optimization technique, serving a set of quality of service (QoS) demands with minimum necessary transmit power. The optimized system yields the same QoS performance with a significantly lower amount of transmit power, which in future investigations will enable scheduling algorithms to maximize the system capacity.