發(fā)布時間：2018-05-12 22:20

  本文選題：民用航空通信 + 航空自組網�。� 參考：《重慶大學》2014年博士論文

【摘要】：近年來，全球航空運輸業(yè)的快速發(fā)展給民航通信系統(tǒng)提出了更高的要求。尋求一個適合未來航空業(yè)發(fā)展的全球一體化、空天地一體化新型民航通信系統(tǒng)解決方案已成為一件刻不容緩的事情。航空自組網有望作為一種候選技術用于新型民航通信系統(tǒng)而得到全球諸多科研機構和研究人員的廣泛關注。 天基網通信成本高、時延大、容量受限，地基網覆蓋區(qū)域受限，不支持跨洋飛行，航空自組網可作為天基網和地基網的重要補充。現(xiàn)有的地面移動自組網路由協(xié)議不適宜航空通信環(huán)境，已有的航空自組網路由協(xié)議因其面向的應用場景與民航自組網在網絡目標和網絡特點上存在差異不能使用。論文作者結合國家自然科學基金課題“跨洋民用航空寬帶移動通信組網及關鍵技術研究”，基于空中的飛機盡量通過空-空鏈路和地-空鏈路接入地基站，只有在地基站不能接通時才使用衛(wèi)星的指導思想，針對民航通信場景中飛機節(jié)點高速運動、網絡拓撲高動態(tài)、網絡空間跨度大等特點，圍繞網絡健壯性、高動態(tài)拓撲適應性、網絡QoS保障和路由安全等問題對民航自組網路由協(xié)議相關的理論和技術進行研究。論文的主要工作和成果如下： 1）針對民航通信系統(tǒng)的網絡目標和特點提出基于地基接入優(yōu)先，綜合優(yōu)質地基路徑接入思想的多參數(shù)多路由優(yōu)化路由維護策略，實現(xiàn)民航自組網中各飛機節(jié)點與地基站間路由的高效維護。該路徑搜索策略通過地基站周期廣播路由維護消息，各節(jié)點根據(jù)收到的路由維護消息對各對應節(jié)點到地基站的路由質量進行實時評估和選擇，并在需要時轉發(fā)優(yōu)質路徑信息，實現(xiàn)各飛機節(jié)點到地基站路徑維護，然后利用節(jié)點往地基站的發(fā)包過程實現(xiàn)地基站到各飛機節(jié)點路徑的維護。 2）針對民航通信網絡的通信業(yè)務需求研究和分析影響鏈路質量和路由質量的相關因素，，并據(jù)此提出了綜合可重構路由質量評估模型。該模型從跳數(shù)、時延、鏈路持續(xù)時間、丟包率、剩余帶寬等方面綜合考慮鏈路質量和路由質量的評價，并研究這些因素的感知和量化方法，最終結合民航通信網絡的通信業(yè)務對路徑特性的需求設計路由質量評估模型，為路由協(xié)議實現(xiàn)優(yōu)質地基路徑搜索和網絡QoS保障提供條件。 3）針對民航自組網中高節(jié)點密度區(qū)域因節(jié)點間干擾大和空間頻譜資源競爭導致網絡性能下降問題，從民航自組網拓撲高動態(tài)和節(jié)點分布不均的特點出發(fā)，基于以優(yōu)先保證網絡中飛機節(jié)點地基接入為前提，以控制能提供節(jié)點地基接入鄰居節(jié)點數(shù)目為目標調節(jié)節(jié)點發(fā)射功率的思想提出節(jié)點最佳鄰居配置分布式動態(tài)拓撲優(yōu)化算法。該算法可結合鄰居維護過程實現(xiàn)，可有效提高高節(jié)點密度區(qū)域節(jié)點的通信帶寬，提高網絡性能。 4）針對民航自組網安全性能要求高，移動自組網容易受到攻擊問題，根據(jù)民航自組網中路由層存在的安全威脅，基于從節(jié)點網絡行為來判斷節(jié)點可信度的思想提出基于鄰居信任評估路由安全策略。該策略可結合節(jié)點鄰居維護過程實現(xiàn)，節(jié)點通過監(jiān)測其鄰居的網絡行為對其鄰居節(jié)點進行可信度評估，確保節(jié)點維護的鄰居節(jié)點為可信節(jié)點，從而提高網絡安全性。 論文通過搭建模擬民用航空通信環(huán)境的仿真場景對以上研究成果進行仿真分析。結果表明，結合以上研究成果設計的民航自組網路由協(xié)議能較好的保證飛機節(jié)點地基接入，且與面向高動態(tài)拓撲提出的AODV和GPSR等路由協(xié)議相比，提出的路由協(xié)議表現(xiàn)出更好的動態(tài)拓撲適應性、路由穩(wěn)定性和網絡擁塞防止能力，且具有更高的安全性。
[Abstract]:In recent years, the rapid development of the global aviation transport industry has put forward higher requirements for the civil aviation communication system. It has become an urgent task to seek a global integration for the development of the future aviation industry and the new air space integration new civil aviation communication system. The aero ad hoc network is expected to be a new candidate for new type of aviation industry. Civil aviation communication system has attracted wide attention from many scientific research institutions and researchers worldwide.
Space-based network has high communication cost, large delay, limited capacity, limited coverage area of foundation network, and no support for transoceanic flight. Aero ad hoc network can be an important supplement to space-based network and foundation network. The existing ground mobile ad hoc network routing protocol is not suitable for aviation communication environment. The existing avionics network routing protocol is due to its application scenarios and people. The author combines the National Natural Science Foundation of China with the National Natural Science Foundation of the National Natural Science Foundation, "cross ocean civil aviation broadband mobile communication networking and key technology research". Aircraft based on the air can be connected to the base station by air to air links and ground to air links as far as possible, only when the foundation station can not be connected. Using the guidance of satellite, in view of the high speed movement of the aircraft nodes in the civil aviation communication scene, the high dynamic network topology and the large span of network space, the paper studies the theory and technology related to the civil aviation self group network by the protocols related to the network robustness, high dynamic topology adaptability, network QoS guarantee and routing security. The main work and results are as follows:
1) according to the network targets and characteristics of the civil aviation communication system, a multi parameter multi route optimization routing maintenance strategy based on the foundation access priority and the integrated high quality foundation path access idea is proposed to realize the efficient maintenance of the routing between the aircraft nodes and the foundation stations in the ad hoc network. The path search strategy is maintained through the broadcast routing of the foundation station cycle. According to the message, each node makes real-time evaluation and selection of the route quality of the corresponding nodes to the foundation station according to the received route maintenance message, and retransmit the high quality path information when needed, realize the maintenance of the path of each node to the ground base station, and then use the node to the ground base station to realize the dimension of the ground station to each aircraft node path. Protect.
2) according to the communication service requirements of the civil aviation communication network, the factors affecting link quality and routing quality are studied and analyzed, and a comprehensive reconfigurable routing quality evaluation model is proposed. The model considers the link quality and routing quality from jumping number, delay, link duration, packet loss rate and residual bandwidth. The method of perception and quantification of these factors is studied, and the routing quality evaluation model is designed based on the requirement of the communication service of civil aviation communication network to the path characteristics. It provides the conditions for the routing protocol to realize the high quality foundation path search and the network QoS guarantee.
3) aiming at the problem of network performance degradation caused by high node density in the high node density area and the competition of spatial spectrum resources in the high node density area of the civil aviation network, starting from the characteristics of high dynamic topology and uneven distribution of nodes in the ad hoc network of civil aviation network, it is based on the premise that the ground connection of the aircraft nodes in the network is guaranteed, and the node foundation can be controlled to access the neighbor. The number of nodes is a distributed dynamic topology optimization algorithm for the node best neighbor allocation. This algorithm can be implemented in the neighborhood maintenance process, which can effectively improve the communication bandwidth of the nodes with high node density and improve the network performance.
4) in view of the high security performance requirements of the ad hoc network, the mobile ad hoc network is vulnerable to attack. According to the security threat existing in the self organizing network of the civil aviation network, the idea of routing security based on neighbor trust assessment is proposed based on the idea of neighbor trust evaluation based on the behavior of node network. This strategy can be implemented in the process of node neighbor maintenance. By monitoring the network behavior of their neighbors, the nodes evaluate their neighbor nodes to ensure that the nodes maintained by the nodes are trusted nodes, thus improving the network security.
The simulation scene of the simulation of civil aviation communication environment is built to simulate and analyze the above research results. The results show that the civil aviation ad hoc network routing protocol designed with the above research results can guarantee the access of the aircraft node foundation better, and compared with the AODV and GPSR routing protocols for high dynamic topology. Routing protocol shows better dynamic topology adaptability, routing stability and network congestion prevention capability, and has higher security.

【學位授予單位】：重慶大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TN915.04

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本文編號：1880367