ing system functionality in this way has been shown to allow the conceptual designs for thousands of competing communication satellite constellation architectures to be compared directly.[23] Although the definition is clearly linked to technical functionality, the abstraction is in terms of value delivered to the user. For example, in

The SatNEx Project provides a pan-European multimedia network that may be used to rectify fragmentation in satellite communications research, by bringing together Europe’s leading academic institutions and research organisations in a cohesive and durable way. The resultant network provides a collective grouping of expertise and state-of-the-art laboratory facilities that would otherwise remain ...

This paper describes the Saami Network Connectivity (SNC) project that seeks to establish Internet communication for the Saami population of Reindeer Herders, who live in remote areas in Swedish Lapland, and relocate their base in accordance with a yearly cycle dictated by the natural behavior of reindeer. This population currently does not have reliable wired, wireless or satellite communicati...

In this paper we present methods to generate models of mountainous regions. For these regions statistical methods are unsuitable to predict the service coverage, blocking and termination probabilities for systems involving fast moving satellites. We present methods using modeled terrains to analyze the service coverage in satellite integrated mobile communications systems. Results of service co...

This tutorial paper describes the current development in the use of low earth orbiting satellites (LEOS) for global personal communications. The basic architectures and rationales for design choices are discussed. Representative TDMA and CDMA systems are outlined and a summary of the diierences between LEOS communications and terrestrial cellular is presented along with the prospects for CDMA b...

Low earth orbit (LEO) satellite systems gained considerable interest in the past decade and were expected to be instrumental in future telecommunications systems. Nevertheless, the first two LEO satellite networks that are currently in operation have not come to fruition on account of the limited spectrum of services that they provide. In this context, future LEO satellite networks will be gear...

Satellite communications are the outcome of research in the area of communications and space technologies whose objective is to achieve ever increasing ranges and capacities with the lowest possible costs. The Second World War stimulated the expansion of two very distinct technologies—missiles and microwaves. The expertise eventually gained in the combined use of these two techniques opened up ...

In the last decade, the demand for reliable data, voice, and video satellite communication links between aircraft and ground to improve air traffic control, airline management, and to meet the growing demand for passenger communications has increased significantly. It is expected that in the near future, the spectrum required for aeronautical communication services will grow significantly beyon...

The development of the Advanced Communications Technology Satellite (ACTS) Mobile Terminal (AMT) and its follow-on, the Broadband Aeronautical Terminal (BAT), have provided an excellent testbed for the evaluation of Kand Ka-band mobile satellite communications systems. Such systems have proven viable for many different commercial and government applications. Combining emerging satellite communi...

Univ.-Prof. Dr. Wolfgang Bösch Over the last decades Space and satellite technology has increasingly become part of our daily lives, be it regular weather forecasts based on satellite images, the multitude of TV channels distributed via satellites or the navigational GPS support we find in almost every car—not to mention the many other services and science missions that are based on modern sate...