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The Journal of The Korea Institute of Intelligent Transport Systems Vol.9 No.1 pp.91-100
항공이 동통신환경에서 항공교통량에 따른 우선순위 할당 알고리즘에 관한 연구
A Study on Priotiry Allocation Algorithm According to Air Traffic in Aeronautical Communication Environment
Abstract
According to the recent increase in air traffic a more efficient air traffic flow control is required. This paper proposes the algorithm for efficient air traffic flow control. Aeronautical communication environment is different from the common communication environment since it needs a direct communication between stations (or airplanes) and requires a strict priority for safety message. Moreover, the wide area for basic service causes high propagation delay. In this paper, by using existing CSMA/CA Media Access Control (MAC) protocol, we set the message priorities according to air traffic condition (congestion airport area, approach control area, En route area, and ocean area). This prioritization scheme enables the data transmission with higher access probability. Simulation results confirm that our protocol shows better performance in terms of channel efficiency and success probability compared to exisiting CSMA/CA protocol.
