Isbn: 9783540678502 - third generation mobile telecommunication systems: umts and imt-2000 (engineering online library) (4 Ergebnisse)

gebundene Ausgabe. Zustand: Gut. 657 Seiten Der Erhaltungszustand des hier angebotenen Werks ist trotz seiner Bibliotheksnutzung sehr sauber. Es befindet sich neben dem Rückenschild lediglich ein Bibliotheksstempel im Buch; ordnungsgemäß entwidmet. In ENGLISCHER Sprache. Sprache: Englisch Gewicht in Gramm: 2005.…

Gebunden. Zustand: Sehr gut. " Gebraucht - Sehr gut Zustand: Sehr gut, XI, 657 pp. 313 figs. About this book This book presents in self-contained chapters all aspects of third generation mobile communications. The focus is on the international standards \"Universal Mobile Telephony Service (UMTS)\" and \"International Mobile Telephony (IMT 2000)\". Special emphasis is placed on the definition and implementation of new services and multimedia applications. Written for scientists and R&D engineers in communications technology ". …

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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - One hundred years ago, the notion of transmitting information without the use of wires must have seemed like magic. In 1896, the first patent for wireless communication was granted to Marchese Guglielmo Marconi. Since then the field of wireless communications which includes cellular systems has taken various forms of development. It basically evolved through three Eras. The Pioneer Era over the period of 1860-1921, the Precellular Era over 1921-1980 and the Cellular Era after 1980 and beyond. The first generation cellular era started with the Analog Systems and evolved in the digital domain utilizing Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA), thus comprising the Second Generation Mobile Systems. The first generation RF cellular communications systems deployed in the early to mid 1980's had air interfaces comprised of analog technology. Among them were AMPS (Advanced Mobile Phone System), NMT (Nordic Mobile Telephone), and TACS (Total Access Communications System). These were designed for use in a specific geographic area and not intended to be deployed in other areas. There was not much commonality beyond using the same air interface technology and same modulation. The air interface technology was Frequency Division Multiple Access (FDMA) and the modulation was analog FM, but with different deviations and channel spacings. The frequency bands, air interface protocols, number of channels, and data rates were different. In general, these systems provided local and national coverage.…