Course Code: DS-MS-301
The objective of the course is a comprehensive presentation of the analysis and design techniques of wireless and satellite communication links. The course includes two sections. In the first section we attempt a review of fundamental concepts of antenna technology and electromagnetic propagation. An analytic description of propagation aspects in current wireless communication systems is given for the mostly used frequency bands. Propagation mechanisms and prediction models are provided for successful design of fixed wireless access systems. We analyze international standards and recommendations (ITU-R) for the efficient design of wireless links providing the critical metrics and quality parameters. The section closes with the analysis of antenna arrays, the methods used for array signal processing and typical applications of optimum beam formers. The second section deals with the review of Satellite communications networks technology providing the current state of structural blocks of these networks, discussing the multiple access techniques and network topologies used. Typical examples are given for VSAT networks and the design of satellite links.
- Satellite communication systems (characteristics, services, earth stations, organizations and standardization bodies).
- Orbit mechanics (Keplerian orbits, motion equations, orbit parameters, earth orbit, earth-satellite relative geometry, GEO, LEO, MEO, HEO satellites).
- Analysis and design of satellite communication links (antenna characteristic parameters, link budget for clear sky conditions and for rain conditions, noise effects, quality measures and figures of merit for satellite receivers, the transmission path, signal to noise ratio for an earth station to earth station link, satellite amplifiers and transfer characteristics, saturation and power gain at the satellite).
- Transmission techniques analysis (analogue and digital baseband transmission techniques and modulation for audio and video signals).
- Multiple access techniques (FDMA, TDMA, CDMA) for satellite networks, single and multiple beam systems.
- Pratt T., Bostian C. & Allnutt J., (2003): Satellite Communications, Wiley.
- Maral G. & Bousquet M. (2002): Satellite Communications Systems, John Wiley and Sons Ltd.