Architecture of Time Division Multiple Access (TDMA) for Mobile Satellite Communication (MSC) Networks

Abstract

This paper describes in particular architecture of Time Division Multiple Access (TDMA) schemeapplicable in Mobile Satellite Communication (MSC) networks. In satellite communication systems, as arule, especially in MSC systems many Mobile Earth Stations (MES) users are active and communicate at thesame time via satellites and Land Earth Stations (LES). The problem of simultaneous communicationsbetween many single or multipoint mobile users, however, can be solved by using Multiple Access (MA)technique. Since the resources of the systems such as the transmitting power and the bandwidth of RadioFrequencies (RF) are limited, it is advisable to use the channels with complete charge and to create a differentMA to the channel. This generates a problem of summation and separation of signals in the transmission andreception parts, respectively is discussed. Deciding this problem consists in the development of orthogonalchannels of transmission in order to divide signals from various users unambiguously on the reception part.