구자열(Jayeul Koo)/박사학위 취득
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아주대학교 MDC학과 교수

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관심분야

무선통신시스템

1980.03 ~ 1984.02   공군사관학교 전자과
연 락 처 010-7332-8261 1992.03 ~ 1993.12   국방대학원 전자계산학과 석사졸업
이 메 일 koo69234@ajou.ac.kr 2009.03 ~   아주대학교 NCW학과 박사과정  

 

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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.