發(fā)布時間：2018-05-07 16:22

  本文選題：空基自組網(wǎng) + 路由協(xié)議　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：隨著新一代戰(zhàn)機(jī)、預(yù)警機(jī)、無人機(jī)等先進(jìn)武器系統(tǒng)裝備軍隊,構(gòu)建一個高速、大容量、寬帶以及動態(tài)的空基網(wǎng)絡(luò)對于提高各戰(zhàn)斗平臺間的信息共享、協(xié)同作戰(zhàn)能力具有重大的意義。利用MANETs技術(shù)構(gòu)建空基自組網(wǎng)以實現(xiàn)高速運動的空中多平臺互聯(lián)是當(dāng)前的一個研究熱點。由于空中節(jié)點的高速運動、拓?fù)鋭討B(tài)變化、節(jié)點間距離遠(yuǎn)、通信鏈路不可靠等因素,空基自組網(wǎng)的研究面臨著多種技術(shù)難題。本文重點研究應(yīng)用于空基自組網(wǎng)的路由協(xié)議,主要內(nèi)容包括以下幾方面:第一,針對傳統(tǒng)Ad Hoc路由協(xié)議無法滿足空基自組網(wǎng)在高動態(tài)拓?fù)湎碌脱舆t、低路由開銷、高成功投遞率的要求,研究了一種利用節(jié)點移動信息的路由協(xié)議(MARP/MDP)。該協(xié)議利用節(jié)點已知的移動信息預(yù)測網(wǎng)絡(luò)拓?fù)渥兓?增強(qiáng)對動態(tài)拓?fù)涞倪m應(yīng)性及減少路由開銷。根據(jù)該協(xié)議的核心思想,設(shè)計協(xié)議的具體過程,包括拓?fù)漕A(yù)測機(jī)制、實際拓?fù)涮綔y機(jī)制、差異信息通知機(jī)制、路由計算方法以及協(xié)議的數(shù)據(jù)結(jié)構(gòu)等,并提出一種利用網(wǎng)絡(luò)已知拓?fù)浜头纸M重復(fù)統(tǒng)計來減輕廣播風(fēng)暴的方法。第二,利用QualNet仿真軟件對MARP/MDP、AODV、OLSR、LAR協(xié)議的性能進(jìn)行對比分析。結(jié)果表明,MARP/MDP協(xié)議的性能優(yōu)于其它三種協(xié)議,本文提出的廣播風(fēng)暴減輕機(jī)制有效提高了MARP/MDP協(xié)議的性能。MARP/MDP協(xié)議能夠適應(yīng)動態(tài)的網(wǎng)絡(luò)拓?fù)?在網(wǎng)絡(luò)拓?fù)渥兓瘎×业那闆r下,保持較高的分組成功投遞率和較低的平均端到端延遲;在網(wǎng)絡(luò)流量增加的情況下,MARP/MDP的丟包率和路由開銷增加不大;在非理想通信環(huán)境中,MARP/MDP依然能夠保持良好的性能。第三,設(shè)計了一種在Linux操作系統(tǒng)下實現(xiàn)MARP/MDP路由協(xié)議的方案,搭建開發(fā)測試平臺并實現(xiàn)了MARP/MDP路由協(xié)議。節(jié)點首先根據(jù)預(yù)測拓?fù)浔砩傻穆酚赊D(zhuǎn)發(fā)表發(fā)送數(shù)據(jù),在實際拓?fù)渑c預(yù)測拓?fù)浯嬖诓町惽闆r下能夠發(fā)現(xiàn)差異信息并修正預(yù)測拓?fù)?計算出有效可靠的路由。實驗結(jié)果表明,本方案設(shè)計正確實現(xiàn)了MARP/MDP協(xié)議的功能。
[Abstract]:With the new generation of fighter planes, AWACS, UAVs and other advanced weapon systems equipped with the military, building a high-speed, large capacity, broadband and dynamic space-based network to enhance the sharing of information among combat platforms, Cooperative combat capability is of great significance. Using MANETs technology to construct space-based ad hoc networks to realize high-speed aerial multi-platform interconnection is a hot research topic at present. Because of the high speed movement of air nodes, the dynamic change of topology, the distance between nodes and the unreliable communication links, the research of space-based ad hoc networks is faced with many technical problems. This paper focuses on the routing protocols applied in space-based ad hoc networks. The main contents are as follows: first, the traditional Ad Hoc routing protocols can not meet the low latency and low routing overhead of space-based ad hoc networks under high dynamic topology. In order to meet the requirement of high delivery rate, a routing protocol based on node mobility information (MARP / MDP) is proposed. This protocol uses the known mobile information to predict the network topology change, enhances the adaptability to the dynamic topology and reduces the routing overhead. According to the core idea of the protocol, the specific process of designing the protocol includes topology prediction mechanism, actual topology detection mechanism, differential information notification mechanism, routing calculation method and the data structure of the protocol, etc. A method of reducing broadcast storms by using network topology and packet repetition statistics is proposed. Secondly, the performance of MARP / MDP / AODV / OLSR / LAR protocol is compared and analyzed by using QualNet simulation software. The results show that the performance of MARP / MDP protocol is better than that of the other three protocols. The broadcast storm mitigation mechanism proposed in this paper can effectively improve the performance of MARP/MDP protocol .MARP / MDP protocol can adapt to dynamic network topology. It maintains high packet delivery rate and low average end-to-end delay. The packet loss rate and routing overhead of MARP / MDP are not much increased when network traffic increases. In non-ideal communication environment, MARP / MDP can still maintain good performance. Thirdly, a scheme of implementing MARP/MDP routing protocol under Linux operating system is designed, and the development and test platform is built and the MARP/MDP routing protocol is implemented. First, the node sends data according to the routing forwarding table generated by the predictive topology table. When there are differences between the actual topology and the predicted topology, the difference information can be found and the predictive topology can be corrected, and an effective and reliable route can be calculated. The experimental results show that the MARP/MDP protocol is implemented correctly.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：E96;TN915.04

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本文編號：1857613