Research On Routing Protocol Of Aeronautical Ad Hoc Network Based On ADS-B

With the rapid development of the global aviation industry, along with the continuous progress of ad hoc technology and mobile communication technology in recent years, the research of aeronautical ad hoc network has gradually become a hot research topic.AANET is a special ad hoc networks mobile wireless ad hoc network, but also has the characteristics of wireless ad hoc networks. Because of special application scenarios, AANET has its own different characteristics, so the wireless ad hoc network’s protocols can not be applied directly to the AANET. Routing Protocol in AANET is a key part of networking, and it determines the performance of network in AANET. IN AANET, since high-speed operation of aircraft nodes, resulting in network topology changes quickly, unstable relations between nodes and the poor air channel conditions, so AANET routing protocols have higher requirements.In this paper, For GPRS network overhead and algorithms defect in AANET, an improved routing protocol is proposed base on ADS-B and nodes’ movement trend. At last, we added security considerations it it.This thesis firstly gives a comprehensive introduction to Ad Hoc network, AANET and ADS-B system. Then starting from geographic location information, it proposes an AANET routing protocol which is based on ADS-B from the orientation of decreasing the network overhead. It establishes the neighbour table by using ADS-B message instead of the broadcast self-localization information of the node’s periodicity to decrease the network overhead. After that, the thesis analyses the drawbacks of the application of GPSR protocol in AANET, and proposed an improvement of algorithm in terms of the lack of support of GPSR to high dynamic topology and proposed a variable STA which based on speed and location to express the trend of movement from one node to another and optimizes the process of select next hop in routing and makes an emulation.What is more, the thesis also takes the routing safety performance into consideration thus adding a signature authentication and proposes an ONRM model based on the subjective logic theory. This paper evaluate the node’s reputation by using the reputation information from the node itself and the node nearby, to prevent the attack of malicious node. The ONRM model selects and weights the neighbor nodes’ information which is shared by using “differences of opinion”, and combines the node’s own information with the neighbor nodes’ information which is shared together by consensus operator, make the credibility is more objective and accurate.Last but not least, this dissertation makes an analogue simulation on three data index regarding the improvement of routing protocol with safety performance added and makes a compare and contrast with the routing protocol which does not have safety performance and only contains signature authentication. The results show that the scheme of signature verification and ONRM model has a greater degree of improvement in routing performance and security, all of these have great significance in engineering application.