Draw the block diagram of TDMA system and explain its working.

Draw the block diagram of TDMA system and explain its working.
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1 Answer

Answer :

Block diagram of TDMA system:-

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OR

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Explanation:- In TDMA, each user has all the bandwidth, all the power and part of the time. It is frequently used with data and digital voice transmission. TDMA sends data in buffer and hence it is bursty communication. It is non-continuous. TDMA cannot send an analog signal directly due to buffering required. It is used for digital data. In this method, all the earth stations share transponder time. Each earth station in the network is allocated a time slot in a periodic sequence. It is a method of time division multiplexing, digitally modulated carrier between participating earth stations within the satellite network through a common satellite transponder. With TDMA, each earth station transmits a short burst of digitally modulated carrier during a precise time slot (called epoch) within a TDMA frame. Each earth station’s burst is synchronized so that it arrives at the satellite transponder at a different time. Consequently, only one earth station’s carrier is present in the transponder at any given time thus avoiding collision with another station’s carrier. The transponder is an RF to RF repeater that simply receives the earth stations transmissions, amplifies them and retransmits them in a downlink beam that is received by all participating earth stations. Each earth station receives the bursts from all other earth stations and must select from them the traffic destined only for itself.

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