Advanced technologies in satellite TV broadcasts have led anomalies and opposite behavior of young people against social values. Western countries have targeted different aspects of youth identity through these programs, including, religious, social, cultural and political security. The aim of this study was to evaluate the effect of satellite channels on the value system of students. The aim o...

With the consideration of the existing Ka-band satellite channel model in data processing method deficiency, the Ka-band satellite channel propagation characteristic is analyzed and the influence of meteorological factors on the satellite channel is discussed. The channel of meteorological factor principal component is obtained by using the principal component analysis and fuzzy clustering anal...

Space-Ground Integrated Network (SGIN) is the future network, and the satellite-earth link channel is one critical part of the SGIN. This paper simulates the satellite-earth link channel of SGIN based on the simulation environment of OMNeT++. We set up the model of space-ground network and satellite-earth link channel. The satellite-earth link channel includes two main parts, one part is the fr...

The last review of the modeling of the land mobile satellite channel was done by Karaliopoulos and Pavlidou in 1999. Since then a lot of work has been done to model the land mobile satellite channel. In this paper an up-to-date review of the modeling of the land mobile satellite channel is presented. We look at the various physical characteristics that influence communications in the land mobil...

Low earth orbit (LEO) satellite has the advantages of global coverage, low propagation delay and low path losses, etc. Combined with orthogonal frequency division multiplexing (OFDM) transmission, LEO satellite system can support very high capacity suitable for wideband multimedia traffic. This paper analyzes the channel model and throughput for LEO OFDM satellite communication system. First, s...

The paper asks how a for-profit cable or satellite operator allocates a fixed channel capacity to different program types and how the different channels are bundled and priced. It also addresses the question how channel allocation and bundling decisions made by a for-profit firm differ from the decisions a welfare-maximizing firm would make. It also examines the effect on profits and welfare of...

This paper considers proposing the mathematical model and simulation mode of inter-satellite channel based on the reliability of inter-satellite communication system. The Monte Carlo method is adopted to develop the spread spectrum communication system of two consumers. In order to reduce the bit errors of inter-satellite communication, both spread spectrum communication technology and channel ...

SUMMARY We propose a novel channel model of satellite-to-ground optical transmission to achieve a global-scale high-capacity communication network. In addition, we compose an effective channel coding scheme based on low-density generator matrix (LDGM) code suitable for that channel. Because the first successful optical satellite communication demonstrations are quite recent, no practical channe...

In this report, we consider the performance of trellis coded multilevel differential phase-shift-keying (MDPSK) over Rician and Rayleigh fading channels. For operation at L-Band, this signaling technique leads to a more robust system than the coherent system with dual pilot tone calibration previously proposed for UHF. The results are obtained using a Combination of analysis and simulation. The...