本文選題：移動社交網(wǎng)絡 + 友好性　； 參考：《合肥工業(yè)大學》2016年碩士論文

【摘要】：容遲網(wǎng)絡(Delay Tolerant Networks, DTN)是一類端到端連接不穩(wěn)定的新型無線網(wǎng)絡,移動社交網(wǎng)絡(Mobile Social Network)作為容遲網(wǎng)絡的一個重要應用。移動社交網(wǎng)絡通信是由人們通過WIFI、4G、藍牙等間歇式連接來實現(xiàn)的網(wǎng)絡設備之間的數(shù)據(jù)通信。隨著互聯(lián)網(wǎng)的快速發(fā)展,尤其是隨著4G技術的成熟、5G技術的研究以及智能手機的普及,移動社交網(wǎng)絡用戶數(shù)量逐年增多,帶動了移動互聯(lián)網(wǎng)的快速發(fā)展。當今社會,人們每天甚至每時每刻都在與人打交道。關系在社會生活的中的作用日益重要,如何快速有效地利用已有的社會關系網(wǎng)絡是現(xiàn)代人才必須掌握的技能。最近,對利用友好性關系實現(xiàn)數(shù)據(jù)轉發(fā)算法的研究是移動社交網(wǎng)絡中的一個熱門話題。本文中,首先介紹了移動社交網(wǎng)路的發(fā)展由來、移動社交網(wǎng)絡的基本特點、移動社交網(wǎng)絡常見的幾種類型以及移動社交網(wǎng)絡中幾種典型的利用社會屬性的數(shù)據(jù)轉發(fā)算法。接著,本文從節(jié)點的友好性角度出發(fā),利用節(jié)點間的友好性,構造了節(jié)點間的團結構并利用團與節(jié)點、社區(qū)之間的親密度,提出了一種基于團結構親密度的數(shù)據(jù)轉發(fā)算法(Data forwarding algorithm based on intimacy of group, DFAIG)。該算法的基本思想是,數(shù)據(jù)包攜帶節(jié)點只有在本社區(qū)AP或者相遇節(jié)點與以目的節(jié)點為中心的團結構的親密度達到一定要求時,才轉發(fā)數(shù)據(jù)包給相遇節(jié)點。仿真實驗結果顯示,與著名的Epidemic, Label和SGBR相比,本文提出的算法在降低網(wǎng)絡開銷上具有明顯優(yōu)勢,且有效地提高數(shù)據(jù)包傳遞率。在團結構親密度模型的基礎上,對網(wǎng)絡模型繼續(xù)細分,構建了雙層社區(qū)模型。通過對節(jié)點之間友好性的判斷,本文將互為朋友的節(jié)點劃分為同一個小社區(qū)。但是由于節(jié)點的朋友多種多樣,導致小社區(qū)之間會出現(xiàn)重疊。因此,我們根據(jù)小社區(qū)之間朋友對的數(shù)目以及重疊的節(jié)點數(shù)來構建網(wǎng)絡中大社區(qū)。最后在雙層社區(qū)模型基礎上,提出了新的數(shù)據(jù)轉發(fā)算法TLCR。通過仿真模擬實驗,TLCR不僅提高了傳遞率,而且明顯減少了拷貝數(shù)目。
[Abstract]:Delay-tolerant network (DTNN) is a new wireless network with unstable end-to-end connection. Mobile social network (Mobile Social Network) is an important application of Delay-Tolerant Network (DTNN). Mobile social network communication is the data communication between network devices which is realized by people's intermittent connection such as WiFi 4G Bluetooth and so on. With the rapid development of the Internet, especially with the development of 4G technology and the popularity of smart phones, the number of mobile social network users has increased year by year, driving the rapid development of mobile Internet. In today's society, people are dealing with people every day and even every moment. The relationship plays an increasingly important role in social life. How to utilize the existing social network quickly and effectively is a skill that modern talents must master. Recently, the research of data forwarding algorithm using friendly relationship is a hot topic in mobile social networks. In this paper, we first introduce the origin of mobile social network, the basic characteristics of mobile social network, the common types of mobile social network and some typical data forwarding algorithms using social attributes in mobile social network. Then, from the point of view of node friendliness, using the friendliness between nodes, this paper constructs the cluster structure between nodes and makes use of the affinity between groups and nodes, communities. A data forwarding algorithm based on cluster structure affinity density is proposed in this paper. The basic idea of the algorithm is that the packet carrying node will forward the packet to the encounter node only if the affinity between the AP or the encounter node and the cluster structure centered on the destination node reaches a certain requirement. The simulation results show that compared with the famous Epidemicl label and SGBR the proposed algorithm has obvious advantages in reducing the network overhead and effectively improves the packet transfer rate. Based on the closeness model of regiment structure, the two-layer community model is constructed by subdividing the network model. By judging the friendliness between nodes, the nodes that are friends with each other are divided into the same small community. However, due to the diversity of friends in the nodes, there will be overlap between small communities. Therefore, we construct large communities in the network based on the number of friends pairs and the number of overlapping nodes between small communities. Finally, a new data forwarding algorithm, TLCRs, is proposed based on the two-level community model. Simulation experiments show that TLCR not only improves the transfer rate, but also reduces the number of copies.
【學位授予單位】：合肥工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TN929.5;TP393.09

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