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The developing prospect of the digital trunking system is introduced. On the basis of the computer simulation for the Trans-European Trunked Radio (TETRA) air interface protocol, the collision ratio and the mean number of successful access in the main control channel (MCCH) with the random access method of the ALOHA protocol is analyzed and proved as well as the relationship between call loss, channel utilization and the system traffic. The capacity for the users of the standard mode of TETRA system is then calculated.
Date of Conference: 18-22 Oct. 1999