This paper presents a combination of Free Space Optic systems with WLAN and Satellite Communications to provide Video conferencing and data transfer for use in Civil Military Cooperation and disaster recovery applications. A modular communication system developed at TU Graz is described, which facilitates worldwide access to the Internet or any other network (depending on the particular applica...

This paper presents a model of a satellite communication system using evolving multi-agent architecture. Situations such as satellite communications link analysis and resource allocation, require dynamical making and breaking of links between communication nodes, and would highly benefit from increased on-board adaptability and autonomy. An evolvable architecture based on intelligent agents tha...

Recently, earth observation system by using satellite network have attracted much attention due to their wide coverage and disaster resistance. Although the system is useful for collecting various data, which have an affect on a natural disaster, ecology and so forth, earth observation satellite hardly send the collected observation data to the ground station. This is because that the earth obs...

The constant growth of GEO satellites as a medium of communication has underlined the question of service integration over such a system. Digital television over satellite experiences a real success, but paradoxically the Internet access via satellite seems an economic failure, preventing further service integration. In this paper, we propose a short overview of the current use of satellite for...

Title of dissertation: MULTICAST COMMUNICATION SUPPORT OVER SATELLITE NETWORKS Gün Akkor, Doctor of Philosophy, 2005 Dissertation directed by: Professor John S. Baras Department of Electrical and Computer Engineering In this dissertation, we focus on providing multicast communication support over satellite networks. We investigate the possible performance enhancements in terms of the throughput...

in this paper, an interference management for multi-beam satellite network to enhance spectral efficiency is studied. first, a two-satellite for future generation satellite network using cognitive radio technology is provided.this network is composed of a secondary satellite and aprimary satellite where the primary satellite system does not suffer from severe destructive interferences coming fr...

Among other factors that characterize satellite communication channels is their high bit error rate. We present a system for still image transmission over noisy satellite channels. The system couples image compression together with error control codes to improve the received image quality while maintaining its bandwidth requirements. The proposed system is tested using a high resolution satelli...

Research and development activities have been implemented for the Satellite/Terrestrial Integrated Mobile Communication System (STICS) that enables mobile phones to seamlessly switch terrestrial communication links/satellite communication links. In STICS, through taking advantage of a large-antenna multi-beam satellite communication system, the satellite/terrestrial communications links are sup...