Topology Control Mechanism Based on Link Available Probability in Aeronautical Ad Hoc Network
In this paper; we consider traffic network with high-speed mobility nodes scenario; and give a new network topology control mechanism to rise the routing path duration in Aeronautical ad hoc network. The mechanism can use different methods to construct topology according to the node densities. For network regions having a high density of aircraft; the packets are preferentially routed over the long available links created by the aircraft moving in same direction. For low density of aircraft; the routing preferentially uses the short available links created by the aircraft moving in both directions. The mechanism can effectively decrease the probability of routing path breaks; when the nodes move with a high velocity. It can be also integrated with existing Ad hoc network routing protocols smoothly. We combine the mechanism with Optimized Link-State Routing Protocol (OLSR); and give a Path Link Availability Routing Protocol (PLAR). The performance of PLAR protocol is compared with several routing protocols in different scenes. The metrics include end-to-end delay; availability and length of path. Experimental results show that PLAR protocol exhibits a significant improvement over most routing protocols base on topology and position