机会网络中基于节点社会性的数据转发机制研究

发布时间：2018-01-09 08:37

本文关键词：机会网络中基于节点社会性的数据转发机制研究　出处：《新疆大学》2017年硕士论文　论文类型：学位论文

【摘要】：机会网络是即容忍延迟网络后的新型移动自组织网络,它通过相邻节点间的相遇进行通信,其主要特点是节点间不存在确定的链路,并且它依靠节点移动形成的机会接触从而创造数据传输条件,主要采用“存储-携带-转发”的方式完成消息传输。数据的转发需要通过节点携带信息,因此选择合适的节点进行数据的转发就成了重要的研究问题。近年来路由研究技术发现,节点的属性不同数据的转发效率不同,因此选择合适的节点属性进行数据的转发成为了重要的研究内容。本文结合了社会网络的特点,以及节点的社会属性展开数据转发机制的研究,主要工作如下:(1)提出了机会网络中基于陌生人的转发算法。该算法根据定义的陌生节点的属性,计算节点陌生值,选择出合适的陌生节点,并对其进行排序找出最大陌生值节点,最后通过加权激励法激励陌生人促进数据的转发,有效的减少了节点的转发次数,同时保证了较低传输延迟和较高的传输成功率。(2)提出一种基于节点社会属性的转发算法。该算法计算节点的陌生性、介数中心性和相似性,均衡利用多个节点的资源,防止某些节点因资源消耗过快而退出网络,使网络的连通性降低。该算法在一定条件下通过减少节点间的转发次数的同时保证较低的传输延迟和较高的传输成功率,最终有效的降低网络的传输开销。为了验证算法的有效性,本文使用机会网络仿真软件ONE对提出的两种转发算法进行仿真,最终仿真结果表明,通过利用节点的社会属性减少转发次数,可以在保证较低传输延迟和较高传输成功率的同时有效地降低了网络传输开销。
[Abstract]:The opportunity is that network delay tolerant network model mobile self-organizing network, it through the encounter between adjacent nodes communicate, its main characteristic is uncertain link exists between nodes, and it relies on mobile nodes to create opportunities for the formation of contact data transmission conditions, mainly use the "store carry forward" manner message transmission. Data forwarding to carry the information through the node, so choose the appropriate nodes for forwarding data has become an important issue. The research found that the routing technology in recent years, the number of nodes according to the different properties of different forwarding efficiency, so choose the appropriate node attribute data forwarding has become an important research content. This paper combines the characteristics of social network, and the study of the social property node data transmission mechanism, the main work is as follows: (1) the machine network In the forwarding algorithm based on the algorithm according to the stranger. The strange attribute nodes, compute nodes selected node value strange, strange right, and the order to find the maximum value of strange nodes, and finally through the weighted excitation method to promote data forwarding incentive to strangers, effectively reduces the number of forwarding nodes, and ensure the the lower transmission delay and higher success rate. (2) propose a forwarding algorithm based on nodes. Strange social attributes of the algorithm of computing nodes, betweenness centrality and similarity, balanced by using the multi node resources, to prevent some nodes due to excessive consumption of resources from the network, the network connectivity reduces the algorithm by reducing the number of forwarding nodes under certain conditions to ensure the transmission low transmission delay and higher success rate, and ultimately reduce network transmission. Pin. In order to verify the effectiveness of the algorithm, this paper use the opportunity of the network simulation software ONE two forwarding algorithm to simulate the final simulation results show that through the use of social attribute nodes to reduce forwarding number, can guarantee low transmission delay and higher transmission power to reduce the network overhead.

【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5

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