• Journal of Advanced Navigation Technology
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• v.13 no.3
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• pp.327-336
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• 2009

This paper analysis the STDMA protocol in aviation wireless data communications and carry out the performance analysis with simulation. The STDMA protocol that is currently being used in VDL Mode-4 has TDMA system characteristics, which provides time-division into several slots per one frame. The results of modeled STDMA protocol's data channel analysis show approximate 0.7 channel throughput at the transmission probabilities 0.045, 0.2, and 0.3 in the aspects of channel throughput. The delay time are 2.32434sec, 2.0293sec, and 2.12128sec respectively. These results shows the good stability in spite of variable transmission probabilities. Consequently, it is expected that STDMA protocol would be used properly for domestic communication demands and supervision system improvement by means of applying this to point-to-point communication and data/location broadcasting as a fundamental technology in CNS/ATM.