Domestic Journal 장형준, 장지녕, 구자열, 임재성, "전송률 향상을 위한 거리 정보 기반 VHF Data Link MAC 기법," 한국항공운항학회, 제20권 제4호, pp. 45~49, 2012.12.
VDL(VHF Data Link) Mode E uses TDMA(Time Division Multiple Access) based aeronautical communication technologies for airborne environments. In the VDL Mode E, aircraft uses RR(Reservation Requests) slot to request data slot. However, RR needs a long guard time, since aircraft communication spans a considerable distance. The more number
of aircrafts causes a larger amount of guard times which can make a throughput decreased. In this paper, we propose an enhanced MAC to reduce the guard time by using the distance information of aircraft. The ground station sends management data including time stamp. And then all aircraft can measure their distance from the ground station.