Abstract
In order to limit interference to other satellites mobile satellite terminals require antennas with a high-degree of pointing accuracy, which is a challenging task in military environments. The use of these terminals has to be authorized by regulatory agencies and the FCC is currently evaluating a petition to facilitate their operation. This petition proposes application of FCC’s existing regulations for satellite terminals on large vessels, known as Earth Stations on Vessels (ESV), to mobile satellite terminals. Accordingly, the instantaneous antenna pointing error is determined and when it exceeds a predetermined threshold the transmission power is switched off. Because the instantaneous pointing error has to be accurately determined, implementing such a proposal could be very expensive. In addition, switching off the transmission power can reduce the overall data throughput in a significant manner. In this paper, first, we examine the applicability of FCC’s ESV Regulations for mobile satellite communications. Second, analysis is carried out to determine the performance of a mobile satellite communication system subject to these regulations. It is shown that the overall data throughput can be significantly reduced by such regulations.
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