SATELLITE COMMUNICATION IN NEW REALITIES

New Channel Coding Methods for Satellite Communication

This paper deals with the new progressive channel coding methods for short message transmission via satellite transponder using predetermined length of frame. The key benefits of this contribution are modification and implementation of a new turbo code and utilization of unique features with applications of methods for bit error rate estimation and algorithm for output message reconstruction. T...

Cellular Networks, Satellite Communication 1 Satellite Communication

A satellite communications system is based on antennas in a stable orbit above the earth. Satellites serve as relay stations in the sky. The basic idea of satellite communications is that two stations on earth discuss via one or more satellites. So a little bit of satellite-related terminology: 1. Earth station is an antenna on or near the surface of the earth. 2. Uplink is a transmission from ...

Organizational Effectiveness: New Realities

New Realities, New Rhythms, other Structures

It is important to analyze the role of screens – computers specially – in the image era we are living, the development of computers as new characters in our every day lives and the intimate relationship established between the user and the multimedia background in front of him. E-mail, internet, animation programs, image processing and other social-artistic advantages of the computer bring othe...

New Realities: Libraries in Post-Soviet Russia

The transition away from communism toward a more democratic society and the move to a market economy had profound effects on Russian libraries. Using the main public library in Bryansk, the Bryansk Region Scientific Library, as a case study, this article examines the changes in library service, including information access and the opening of previously closed collections, funding issues, the li...