Datové přenosy v mobilních sítích
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Martynek, Lukáš
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Vysoká škola báňská - Technická univerzita Ostrava
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Abstract
This work deals with historical evolution of data transmissions in mobile networks. Foreshadowed are origins of communication over radio interface, gradual movement from analog networks to digital standards plus attempt at their unification in the ITU-T standard IMT- 2000. In detail is described UMTS network, its architecture, multiple access method, channel composition in access network and resultant possibilities of usage. Further are described advanced packet transmission techniques HSDPA and HSUPA, as well as their later improvements in the HSPA+ standard. Last pages are devoted to ingoing technology LTE plus possibilities of its development towards highspeed network of the 4. generation LTE-Advanced. Mobile WiMAX standard is also shortly characterized.
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Import 29/09/2010
Subject(s)
wireless network, mobile communication, cell phone, GSM, CSD, HSCSD, GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced, Mobile WiMAX, encoding, modulation, spread spektrum, access network, multiple access, data transmissions, teaching program, interactivity