Traffic capacity and QoS of personal mobile satellite systems with dynamic channel assignment

In this paper, radio resource management strategies optimizing the traffic capacity and the QoS (quality of service) of PMSSs (personal mobile satellite systems) are presented and described. The reference PMSS implemented in the in-house developed simulation tool MoSSS (mobile satellite system simulator) and used as a reference for performance evaluation of radio resource management strategies is introduced. All its relevant characteristics and components, i.e. satellite antenna, cellular coverage, multiple access scheme, transceiver array and passive power control, are described. Also, the terms interference limited PMSS and capacity limited PMSS are defined. Strategies for optimum slot selection and dynamic channel assignment are presented. Finally, criteria for performance evaluation of PMSS are introduced and simulation results showing the good performance of the new developed schemes are presented.