A short description “TDMA definition and main features TDMA”
Definition of TDMA:
- Time Division Multiple Access (TDMA) systems divide the radio spectrum into time slots and each time slot is assigned to only one user.
- In TDMA/TDD half of the time slots in the frame information message would be used for the forward link channels and half would be used for reverse link channel.
- In TDMA/FDD the carrier frequencies would be different for forward and reverse link. An identical frame structure would be used for either forward or reverse transmission.
- In a TDMA frame, the preamble contains the address and synchronization information that both the BS and subscriber used to identify each other.
Main Features of TDMA:
- Share a single channel by several users
- Data transmission is not continuous
- Duplexer not required
- High synchronization overhead is required
- It is possible to allocate different number of slots to a user
#Ref book: Wireless Communication and Networking – V.K. Garg