Calculation and Simulation of Message Delay on TDMA Short-wave Communication Network

TDMA protocol is a main channel access method of wireless networks used in military fields, which works by dividing a radio frequency into time slots and allocating slots to multiple calls. Two mathematical models are proposed to calculate the message delay. Based on analysis, the message delay in the queue of TDMA is composed of two parts, one can be calculated on M/M/1 theory, in which the waiting time is from the message coming into being to it being the header of the queue, the other can be modeled by the uniform distribution and Erlang distribution, in which the message waiting time is caused by the header waiting for its turn to be sent. Simulation results are compared with two methods, and Erlang distribution is closer to the simulation results than uniform distribution.