TETRA Backhauling via Satellite: Improving Call Setup Times and Saving Bandwidth

Abstract

In disaster management scenarios with seriously damaged, not existing, or saturated communication infrastructures satellite communications can be an ideal means to provide connectivity with unaffected remote terrestrial trunked radio (TETRA) core networks. However, the propagation delay imposed by the satellite link affects the signalling protocols. This paper discusses the suitability of using a satellite link for TETRA backhauling, introducing two different architectures. In order to cope with the signal delay of the satellite link, the paper proposes and analyzes a suitable solution based on the use of a performance enhancing proxy (PEP). Additionally, robust header compression (ROHC) is discussed as suitable technology to transmit TETRA voice via IP-based satellite networks.

A Bandwidth Statistical Multiplexing and Control Method for Satellite Broadcasting

“…In order to cope with the signal delay of the satellite link, Donner et al [2] proposed and analyzed a suitable solution based on the use of a performance enhancing proxy (PEP) and header compression for voice over IP (VoIP) streams to save satellite bandwidth. Park and Kim proposed an adaptive bandwidth allocation scheme according to traffic demands and weather-induced signal attenuation, which can achieve a reasonable solution between the maximization of total capacity and the support of proportional fairness among the beams for satellite downlinks [3].…”

Optical Head-Mounted Displays in Mass Casualty Incidents

“…Several research projects, e.g. WIISARD, AID-N, e-Triage, have already made use of off-the-shelf and custom-made mobile devices ranging from personal digital assistants (PDAs) to rugged tablets (Adler et al, 2011;Coskun, Nestler, Artinger, Benzina & Klinker, 2010;Killeen, Chan, Buono, Griswold & Lenert, 2006).…”