CIR based dynamic channel allocation schemes and handover strategies for mobile satellite systems

In this paper, after a short introduction on mobile satellite systems, the CIR (carrier-to-interference ratio) is introduced as a measure of quality of a mobile-to-satellite link (and vice versa), The difference between CIR/sub up/ and CIR/sub down/ is illustrated and the quasi-independence of these measures is highlighted. Three CIR based dynamic channel allocation (DCA) strategies for mobile satellite systems suitable for both, FDMA/TDMA and CDMA, are presented and discussed. Based on realistic mobility and traffic models, the performance of the proposed DCA schemes is evaluated by simulation. Finally, simulation results are presented and discussed.