A Threshold Setting Method for SPMA Protocol

In this paper, the working mechanism of SPMA protocol in wireless Ad Hoc network is described in detail. The M/G/1 priority queue is used to model the SPMA priority queue. Considering the transmit-to-receive interference and the multiple access interference, the probability of successful message reception is analyzed. Aiming at the problem of SPMA threshold setting, an innovative joint derivation method combining theoretical modeling and simulation correction is proposed. Firstly, the relationship between the duty cycle and burst success probability is derived through mathematical modeling, and then the relationship is modified in combination with simulation. Finally, the setting principle of threshold is discussed, and the problem of SPMA threshold setting is solved, It provides theoretical support for subsequent SPMA key parameter design and performance analysis.