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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Preamble
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Data
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Guard bits
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Trail bits
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Detailed explanation-1: -Explanation: Guard times are utilized to allow synchronization of the receivers between different slots and frames.
Detailed explanation-2: -In TDMA, each user is assigned a nonoverlapping time slot with a guard time, which avoids intersymbol interference in neighboring channels. TDMA transmissions are organized in a frame structure, which contains one or two reference bursts that synchronize the network and identify the frame.
Detailed explanation-3: -There are five basic access or multiplexing methods: frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA), orthogonal frequency division multiple access (OFDMA), and spatial division multiple access (SDMA).