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A switching system in the on--board processor for the mobile satellite communication

机译:车载处理器中用于移动卫星通信的交换系统

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An on-board processor makes efficient use of the chan- nel capacities in a satellite communications system em- ploying multibeam technology, and an on-board processor has been developed for the Engineering Test Satellite Eight (ETS-VIII) which is an experimental satellite for a multi- beam mobile satellite communications system. This commu- nications system uses multicarrier TDMA. Such multiple ac- cess systems are, however, in certain cases subject to on- board processor internal congestion. This paper describes the results of computer simulation studies of the traffic capac- ity obtained using three baseband switching methods f car- rier switching, slot switching, and simultaneous-slot switch- ing, when beams for mobile links are allocated into two di- mensions. The studies indicate that the probability of inter- nal congestion due to the TDMA system is very small when the simultaneous-slot switching method is used, and that simultaneous-slot switching is beneficial for the on--board Processor of the multicarrier TDMA system.
机译:机载处理器有效利用了利用多波束技术的卫星通信系统中的信道容量,并且已经为工程实验卫星八号(ETS-VIII)开发了一种机载处理器用于多波束移动卫星通信系统。该通信系统使用多载波TDMA。但是,在某些情况下,这种多访问系统会受到板载处理器内部拥塞的影响。本文描述了当将用于移动链路的波束分配为两个维度时,使用三种基带切换方法(载波切换,时隙切换和同时时隙切换)获得的话务容量的计算机仿真研究结果。 。研究表明,当使用同时时隙切换方法时,由TDMA系统引起的内部拥塞的可能性非常小,同时时隙切换对多载波TDMA系统的机载处理器是有益的。

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