本文選題：Ad + Hoc網(wǎng)絡(luò)　； 參考：《青島大學(xué)》2017年碩士論文

【摘要】：移動(dòng)Ad Hoc網(wǎng)絡(luò)是一種無中心、多跳、動(dòng)態(tài)拓?fù)涞淖越M織無線網(wǎng)絡(luò),因其無需固定基礎(chǔ)設(shè)施支持、具有較強(qiáng)抗毀性、組網(wǎng)迅速等優(yōu)點(diǎn),主要被用于軍事通信、緊急救援等領(lǐng)域。然而,由于Ad Hoc網(wǎng)絡(luò)中節(jié)點(diǎn)移動(dòng)性、傳輸介質(zhì)脆弱性、無中心節(jié)點(diǎn)等因素,導(dǎo)致與傳統(tǒng)網(wǎng)絡(luò)相比更易受到攻擊,尤其是網(wǎng)絡(luò)內(nèi)部節(jié)點(diǎn)存在自私行為,影響網(wǎng)絡(luò)性能、甚至導(dǎo)致網(wǎng)絡(luò)癱瘓。針對(duì)這種問題,本文通過研究Ad Hoc網(wǎng)絡(luò)中自私節(jié)點(diǎn)的檢測方法,提出了基于信譽(yù)機(jī)制的自私節(jié)點(diǎn)檢測方法。首先,通過研究對(duì)比Ad Hoc網(wǎng)絡(luò)中已有的自私節(jié)點(diǎn)檢測方法,提出了基于數(shù)據(jù)驅(qū)動(dòng)的信譽(yù)評(píng)估模型DDRE。該模型通過數(shù)據(jù)驅(qū)動(dòng)的加權(quán)平均方法計(jì)算節(jié)點(diǎn)的本地信譽(yù)值;當(dāng)本地信譽(yù)記錄表中無法查詢到節(jié)點(diǎn)信譽(yù)值時(shí),采用信譽(yù)分享機(jī)制獲取鄰居節(jié)點(diǎn)的推薦信譽(yù)信息;根據(jù)網(wǎng)絡(luò)中節(jié)點(diǎn)的通信情況及時(shí)更新信譽(yù)值。其次,在DDRE模型基礎(chǔ)上,提出一種新的信譽(yù)機(jī)制檢測網(wǎng)絡(luò)中的自私節(jié)點(diǎn)。該機(jī)制由監(jiān)控模塊、信譽(yù)評(píng)估模塊、懲罰模塊及響應(yīng)模塊四部分組成。監(jiān)控模塊監(jiān)視網(wǎng)絡(luò)中節(jié)點(diǎn)的通信狀況,信譽(yù)評(píng)估模塊根據(jù)節(jié)點(diǎn)的通信狀況進(jìn)行信譽(yù)評(píng)估,懲罰模塊根據(jù)懲罰規(guī)則對(duì)節(jié)點(diǎn)進(jìn)行處理,響應(yīng)模塊收到信譽(yù)評(píng)估模塊和懲罰模塊的消息執(zhí)行相應(yīng)的動(dòng)作。最后,使用NS2仿真軟件針對(duì)有無信譽(yù)機(jī)制的Ad Hoc網(wǎng)絡(luò)進(jìn)行仿真實(shí)驗(yàn)及結(jié)果分析。仿真結(jié)果表明,采用信譽(yù)機(jī)制的Ad Hoc網(wǎng)絡(luò),能夠在一定程度上抵制網(wǎng)絡(luò)中節(jié)點(diǎn)的自私行為,可以有效提高數(shù)據(jù)包投遞率、增加網(wǎng)絡(luò)吞吐量、減少路由開銷,進(jìn)而提高了網(wǎng)絡(luò)性能。
[Abstract]:Mobile Ad Hoc network is a kind of self-organized wireless network with no center, multi-hop and dynamic topology. It has the advantages of strong survivability, fast networking and so on, so it is mainly used in military communication, emergency rescue and other fields. However, due to the mobility of nodes in Ad Hoc networks, the fragility of transmission media and the absence of central nodes, it is more vulnerable to attack than traditional networks, especially the selfish behavior of nodes in Ad Hoc networks, which affects the network performance. Even lead to network paralysis. In order to solve this problem, this paper studies the detection method of selfishness nodes in Ad Hoc networks, and proposes a new method of selfishness node detection based on reputation mechanism. Firstly, by comparing the existing selfishness node detection methods in Ad Hoc networks, a data-driven reputation evaluation model is proposed. The model calculates the local reputation value of the node by data-driven weighted averaging method, and obtains the recommended reputation information of the neighbor node by reputation sharing mechanism when the local reputation record table can not query the node reputation value. Update the reputation value according to the communication status of the nodes in the network. Secondly, based on the DDRE model, a new reputation mechanism is proposed to detect the selfish nodes in the network. The mechanism consists of four parts: monitoring module, credit evaluation module, punishment module and response module. The monitoring module monitors the communication status of the nodes in the network, the reputation evaluation module evaluates the reputation of the nodes according to the communication status of the nodes, and the punishment module processes the nodes according to the punishment rules. The response module receives the messages from the reputation evaluation module and the punishment module to perform the corresponding actions. Finally, NS2 simulation software is used to analyze the simulation results of Ad Hoc networks with or without reputation mechanism. Simulation results show that Ad Hoc networks with reputation mechanism can resist the selfish behavior of nodes in the network to a certain extent, can effectively improve the packet delivery rate, increase network throughput, and reduce routing overhead. Furthermore, the network performance is improved.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 王莎莎;朱國暉;王鑫;;基于網(wǎng)絡(luò)負(fù)載的Ad Hoc路由協(xié)議性能分析[J];軟件導(dǎo)刊;2012年10期

2 周霞;;移動(dòng)Ad hoc網(wǎng)絡(luò)分級(jí)安全路由SAODV協(xié)議研究[J];計(jì)算機(jī)安全;2012年01期

3 吉祖勤;方元康;;Ad Hoc網(wǎng)絡(luò)安全路由協(xié)議SDSR設(shè)計(jì)[J];計(jì)算機(jī)工程;2011年16期

4 張串絨;張玉清;李發(fā)根;肖鴻;;適于ad hoc網(wǎng)絡(luò)安全通信的新簽密算法[J];通信學(xué)報(bào);2010年03期

5 張小彬;韓繼紅;王亞弟;黃河;劉敏;;Ad Hoc網(wǎng)絡(luò)密鑰管理方案綜述[J];計(jì)算機(jī)應(yīng)用與軟件;2010年02期

6 林亞卓;唐陳峰;;Ad Hoc網(wǎng)絡(luò)的入侵檢測技術(shù)研究[J];通信技術(shù);2008年01期

7 陳晉倫 ,鄭紅偉 ,周正;Ad Hoc網(wǎng)絡(luò)在軍事領(lǐng)域中的應(yīng)用[J];國防科技;2005年05期

相關(guān)碩士學(xué)位論文 前3條

1 陳文文;Ad Hoc網(wǎng)絡(luò)中能量有效地理路由協(xié)議研究[D];西安電子科技大學(xué);2016年

2 何巍;Ad hoc網(wǎng)絡(luò)基于信譽(yù)的安全保障機(jī)制研究與仿真[D];東北大學(xué);2012年

3 劉X;基于鏈路穩(wěn)定性的移動(dòng)自組網(wǎng)QoS路由協(xié)議的研究與仿真[D];武漢理工大學(xué);2011年

，

本文編號(hào)：1885920