Garis besar topik

  • Telecommunication systems

    Digital cellular networks wireless devices which are growing most rapidly. They are the wireless extensions of traditional PSTN or ISDN networks and allow for seamlessare the segment of the market for mobile and roaming with the same mobile phone nation or even worldwide. Today, these systems are mainly used for voice traffic. However, data traffic is continuously growing and, therefore, this chapter presents several technologies for wireless data transmission using cellular systems.

    Satellite System

    Satellite communication introduces another system supporting mobile communications. Satellites offer global coverage without wiring costs for base stations and are almost independent of varying population densities. After a short history of satellite development and presentation of different areas of application, this chapter introduces the basics of satellite systems. Orbit, visibility, transmission quality, and other system characteristics are all closely linked.