DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TDMA cellular systems
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FDMA cellular systems
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CDMA cellular systems
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SDMA cellular systems
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Detailed explanation-1: -GSM, D-AMPS, PDC, iDEN, and PHS are examples of TDMA cellular systems. In the GSM system, the synchronization of the mobile phones is achieved by sending timing advance commands from the base station which instructs the mobile phone to transmit earlier and by how much.
Detailed explanation-2: -GSM uses Time Division Multiple Access (TDMA) technology. Worldwide, GSM is the most widely used transmission mode.
Detailed explanation-3: -GSM makes use of narrowband Time Division Multiple Access (TDMA) technique for transmitting signals. GSM was developed using digital technology. It has an ability to carry 64 kbps to 120 Mbps of data rates. Presently GSM supports more than one billion mobile subscribers in more than 210 countries throughout the world.