System integration of GPSR and ADS-B for aeronautical ad hoc networks

The aeronautical ad hoc network (AANET) is a new type of ad hoc network consists of aircrafts in the airspace. AANETs can provide increased connectivity between ground control facilities and aircrafts, enable data communications, and act as the backup system when other systems fail. Greedy perimeter stateless routing (GPSR) is a position-based routing protocol and it shows great performance in ad hoc networks. However, the beaconing scheme of GPSR increases the control packet overhead and collision probability. Furthermore, there are connection problem and tracking problem in the location service of GPSR. In this paper, we propose a system integration scheme of GPSR and automatic dependent surveillance-broadcast (ADS-B). The proposed scheme eliminates the beaconing scheme and alleviates the problems in the location server by using the ground control facilities as the location server. We performed simulation studies, and our simulation results show that the proposed scheme significantly reduces the control packet overhead and collision probability.