The paper presents an application of satellite communication dedicated to medical assistance of people living in hazardous social-environmental conditions. This objective has been fulfilled by a consortium between telecommunication firms and public research bodies, in co-operation with the Italian Defense Staff, by means of a telemedicine network, involving hospitals in Sarajevo, Bosnia and Her...

Sooyoung Kim Shin et al. 31 In high-speed multimedia satellite communication systems, it is essential to provide high-quality, economical services by using efficient transmission schemes which can overcome channel impairments appearing in the satellite link. This paper introduces techniques to compensate for rain attenuation and the Doppler shift in the satellite communication link. An adaptive...

With service types and requirements of broadband satellite internet continuously increasing, improving QoS (Quality of Service) of satellite internet has attracted extensive attention. To reduce the impact of selfsimilarity caused by various of service traffic sources converging on satellite communication system, this paper establishes a novel model from the perspective of self-similar traffic ...

A remarkable advancement in the research of Mobile Ad hoc Networks (MANETS) has been seen in the last two decades. The concept of MANET is based on the infrastructureless self-configurable wireless nodes which act as a router and host. This intrinsic characteristic of MANET renders it quite suitable for tactical and emergency communications scenarios. Since the satellite system has regional as ...

Installation dynamics, optimal thruster propulsion, and specific impulse thrust for reignitable fuel motors to regulate pointing error is obtained for geosynchronous (e.g., the Indian National Satellite, INSAT–1B), and sunsynchronous (e.g., the Indian Earth Resource Satellite, IRS–1) satellites parked in transfer orbits. Filter dynamics for slow and fast terrestrial system are obtained. Design ...

In this paper, we investigate methods for interference location in satellite communication system using satellite multi-beam antenna with subspace based schemes. A novel MUSIC based approach is proposed for estimating the direction of arrival of the interfering sources. The proposed method provides super resolution and asymptotic maximum likelihood estimates of the direction of arrivals even at...

Satellite networks could offer global communication without need of terrestrial infrastructure. Network coding could exploit the shared nature of wireless medium to improve network throughput. In this paper, we combine the satellite network routing algorithm with network coding, proposing a novel Network Coding based Multipath Opportunistic Routing Algorithm (NC-MORA) for Satellite Networks. Th...

A number of satellite communication systems have been proposed using geosynchronous (GEO) satellites, as well as low earth orbit (LEO) constellations operating in the Ka-band and above. At these frequencies satellite networks are able to provide broadband services requiring wider bandwidth than the current services at C or Ku-band. As a consequence, some of the new services gaining momentum inc...

The performance of a direct sequence spread-spectrum land-mobile satellite transmission system, using binary phase shift keying (BPSK) modulation, is analyzed. The satellite channel is modeled as having shadowed Rician fading characteristics. The bit error probability is evaluated, considering both the envelope and the phase variation. Assuming a Gaussian approximation for the interference, num...