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Mobile communication systems. Tutorial. Ipatov V.P., 2003.

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The classification and stages of development of terrestrial mobile communication systems are presented in a systematic way. Features of functioning, principles of organization and main technical solutions are given on the example of standards used in modern systems. Trends and prospects for their improvement are analyzed. The book deals with: Architecture of communication networks, Classification and evolution of mobile radio systems, Characteristics of the propagation medium in cellular radio communications, Signal modulation in digital mobile communication systems, Organization of multiple access and duplex communication modes, Compensation for signal distortions on the propagation path, Noise-correcting coding and its role in mobile radio communication, Information security in mobile communication systems, Source message encoding, GSM mobile phone air interface, cdmaOne (IS-95) mobile phone air interface, XNUMXrd generation mobile communication air interfaces.

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Mobile communication systems. Tutorial. Ipatov V.P., 2003: download from depositfiles.com

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Booking a ticket on the run 07.01.2012

Sheremetyevo became the first and so far the only airport in the world that checks in for flights via Skype.

It works like this. You make a Skype call to svo_checkin or svol_checkin and provide your passport details and flight number, after which you receive a boarding pass in BMP format. In fact, the user instructs the operators to fill out a questionnaire for him. Such a service can be useful for people who are late for a plane and register on the run.

The airport management predicts that up to 20% of passengers will use this service in the future.

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