本文關(guān)鍵詞： 室內(nèi)無(wú)線(xiàn)定位 安全可信定位算法 信號(hào)強(qiáng)度攻擊 Android　出處：《北京郵電大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：隨著移動(dòng)互聯(lián)網(wǎng)以及各類(lèi)移動(dòng)終端的廣泛普及,各種面向移動(dòng)設(shè)備的服務(wù)和應(yīng)用如雨后春筍般出現(xiàn),這其中以基于位置服務(wù)為核心服務(wù)的作用和地位都是其他各類(lèi)服務(wù)所無(wú)法比擬的。除了專(zhuān)門(mén)應(yīng)用于定位導(dǎo)航的軟件之外,各類(lèi)聊天應(yīng)用、游戲應(yīng)用、社交應(yīng)用等目前都集成了基于位置的服務(wù)。在給用戶(hù)提供更加具體化、實(shí)時(shí)化、生活化服務(wù)的同時(shí),也提升了應(yīng)用程序自身的互動(dòng)性。而這一切實(shí)現(xiàn)的基礎(chǔ)就是提供安全可信位置信息的無(wú)線(xiàn)定位技術(shù)。 安全可信的位置信息對(duì)于各類(lèi)基于位置服務(wù)和應(yīng)用來(lái)說(shuō)都是至關(guān)重要的。然而,現(xiàn)階段用于提供位置信息的各類(lèi)基礎(chǔ)設(shè)施,特別是用于室內(nèi)定位系統(tǒng)的設(shè)備在面對(duì)各類(lèi)攻擊時(shí),例如信號(hào)強(qiáng)度攻擊、信號(hào)重放攻擊時(shí),往往缺乏有效的應(yīng)對(duì)手段。當(dāng)針對(duì)于這些設(shè)備的攻擊出現(xiàn)時(shí),定位系統(tǒng)的準(zhǔn)確性通常會(huì)受到嚴(yán)重的影響。本文首先研究了當(dāng)前國(guó)內(nèi)外各種針對(duì)無(wú)線(xiàn)定位技術(shù)提出的安全定位算法,接著從定位系統(tǒng)實(shí)際遇到的問(wèn)題出發(fā),借鑒其他安全定位算法的思想,以提高室內(nèi)定位系統(tǒng)的抗干擾能力為目標(biāo),針對(duì)于定位節(jié)點(diǎn)(AP)最容易受到的信號(hào)強(qiáng)度攻擊,研究了信號(hào)強(qiáng)度攻擊對(duì)于室內(nèi)定位系統(tǒng)的影響。并設(shè)計(jì)了兩種在受到信號(hào)強(qiáng)度攻擊時(shí)能夠保證系統(tǒng)安全性和定位數(shù)據(jù)可信的安全定位算法。隨后,基于安卓(Android)系統(tǒng)實(shí)現(xiàn)了個(gè)結(jié)合中科院計(jì)算技術(shù)研究所定位引擎接口的測(cè)試、仿真軟件,利用中科院計(jì)算所的ViMap定位系統(tǒng)及計(jì)算所的實(shí)驗(yàn)環(huán)境上驗(yàn)證了算法的有效性。實(shí)驗(yàn)結(jié)果證明,通過(guò)利用所提出算法,能夠顯著改進(jìn)定位系統(tǒng)在受到信號(hào)強(qiáng)度攻擊情況下的魯棒性和定位結(jié)果的可信性。 本文的貢獻(xiàn)在于,針對(duì)室內(nèi)無(wú)線(xiàn)定位系統(tǒng)的安全可信技術(shù)進(jìn)行了比較深入的研究。設(shè)計(jì)并實(shí)現(xiàn)了兩個(gè)適用于室內(nèi)無(wú)線(xiàn)定位系統(tǒng)的安全定位算法,保證定位系統(tǒng)在受到信號(hào)強(qiáng)度攻擊時(shí)仍然能夠給出正確的定位結(jié)果的同時(shí)能夠識(shí)別和移除惡意節(jié)點(diǎn)。另外,利用所編寫(xiě)的應(yīng)用程序簡(jiǎn)化了系統(tǒng)采樣、仿真等過(guò)程,提高了定位系統(tǒng)工作效率
[Abstract]:With the wide spread of mobile Internet and all kinds of mobile terminals, a variety of services and applications for mobile devices are springing up. The role and status of location-based services are incomparable to other types of services. In addition to the application of location navigation software, all kinds of chat applications, game applications. Social applications and so on are integrated with location-based services at the same time to provide users with more concrete, real-time, and life-oriented services. It also enhances the interactivity of the application itself, which is based on the wireless location technology that provides secure and trusted location information. Secure and trusted location information is essential for all kinds of location-based services and applications. However, at this stage, all kinds of infrastructure are used to provide location information. Especially when the equipment used in indoor positioning system is faced with various kinds of attacks such as signal intensity attack and signal playback attack there is often a lack of effective response when the attack against these devices occurs. The accuracy of the positioning system is usually seriously affected. Firstly, this paper studies all kinds of secure localization algorithms for wireless positioning technology at home and abroad, and then starts from the actual problems encountered in the positioning system. Referring to the idea of other security positioning algorithms, aiming at improving the anti-jamming ability of indoor positioning system, aiming at the most vulnerable signal intensity attack to the location node APs. This paper studies the effect of signal intensity attack on indoor positioning system, and designs two secure localization algorithms which can guarantee the system security and the location data credibility when the signal intensity attacks. Based on Android (Android) system, a test and simulation software for the positioning engine interface of the Institute of Computing Technology of the Chinese Academy of Sciences (CAS) is implemented. The effectiveness of the algorithm is verified by using the ViMap positioning system of the Institute of Computing of the Chinese Academy of Sciences and the experimental environment of the Institute of Computing. The experimental results show that the proposed algorithm is used. It can significantly improve the robustness of the localization system and the credibility of the localization results under the attack of signal intensity. The contribution of this paper is that the security and trusted technology of indoor wireless positioning system is deeply studied, and two secure location algorithms are designed and implemented for indoor wireless positioning system. Ensure that the location system can still give the correct location results while recognizing and removing malicious nodes. In addition, the system sampling is simplified by using the written application program. The working efficiency of the positioning system is improved by simulation and other processes.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN929.5;TP393.08

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