传感器网络相关性模型的安全与路由研究

发布时间：2018-06-06 11:06

本文选题：无线传感器网络 + 空间相关性　；参考：《长沙理工大学》2014年硕士论文

【摘要】：无线传感器网络技术是被国内外相关领域专家认定为当今世界非常热门的前沿技术。预计在未来的五到十年内,它将对人们的日常活动,吃住行带来深远的影响。随着信息技术的爆炸式发展,让低功耗、微体积、小成本与多种功能集于一体的传感器节点展现在我们的视野之中。也正是这些特征使得传感网络系统的功能作用都非常有局限。然后其能源、通信、计算等有限性致使整个系统网络安全性能缺失。监控区域中,多个节点感知信息时由于部署位置的密集,会导致感知的信息值有着很高的冗余,使得网络系统能量损耗过大。路由机制上要求传感器节点能够有效的传输可靠的数据,不能过度的损耗系统能源。因此,系统安全、数据信息冗余以及系统功耗便成了本次研究的主要课题。文章从上述几个方面对无线传感器网络技术进行了探讨,主要工作如下：第一,介绍了空间相关性模型以及其改进---无线传感器环状相关性模型,将路由协议进行分类,总结一些典型的路由协议,为接下来的研究设计方案打下坚实有力的基础。第二,当系统网络中的节点被外部敌方节点俘获,发生系统内部攻击致使网络系统安全出现缺失,严重时系统将瘫痪。针对此情况,文章在传感器环状空间相关性模型的基础之上,传感器节点两两之间首先进行计算,相邻节点再对节点进行信任评估,通过计算,得到相对较高的信任值,去除低信任节点的数据信息,间接去除恶意节点的虚假信息,让信息更为准确,有效防御系统,提高网络系统的安全性。第三,为了更好的消除网络信息冗余,提高系统节点生存时长,文章提出一种基于环状空间相关性的AC-SPIN路由协议。通过WSN环状空间相关性模型,选择代表性节点进行数据多跳传输,进而减少网络信息冗余。该协议引入计数机制,当节点计数达到阀值后,缓存数据信息并停止转发,收到sink节点的消息后,再继续转发。这样的传输过程有效消除信息冗余,节约传感器节点的能量消耗,延长整个网络系统生存时间。
[Abstract]:Wireless sensor network (WSN) technology is recognized by domestic and foreign experts as the most popular technology in the world. In the next five to ten years, it is expected to have a profound impact on people's daily activities, food, shelter and transportation. With the explosive development of information technology, sensor nodes with low power consumption, micro volume, small cost and multiple functions are displayed in our field of vision. It is these characteristics that make the function of sensor network system very limited. Then the limitation of energy, communication and computation makes the security performance of the whole system network missing. In the monitoring area, when multiple nodes perceive information, because of the dense deployment location, it will lead to high redundancy of perceived information value, which makes the network system energy consumption too large. The routing mechanism requires sensor nodes to transmit reliable data effectively and not to consume system energy excessively. Therefore, system security, data redundancy and system power consumption have become the main topic of this study. This paper discusses the wireless sensor network technology from the above aspects. The main work is as follows: firstly, the spatial correlation model and the improved wireless sensor ring correlation model are introduced, and the routing protocols are classified. Summarize some typical routing protocols and lay a solid foundation for the following research and design. Second, when the nodes in the system network are captured by the external enemy nodes, the system will be paralyzed when the security of the network system is missing due to the attack within the system. In order to solve this problem, based on the sensor ring spatial correlation model, the sensor nodes are first calculated, and the adjacent nodes are evaluated for trust. Through the calculation, a relatively high trust value is obtained. Removing the data information of the low trust node and removing the false information of the malicious node indirectly, making the information more accurate, effectively defending the system and improving the security of the network system. Thirdly, in order to eliminate network information redundancy and improve the lifetime of system nodes, this paper proposes a AC-SPIN routing protocol based on ring spatial correlation. Through the WSN ring spatial correlation model, the representative nodes are selected for multi-hop data transmission, thus reducing the network information redundancy. The protocol introduces the counting mechanism. When the node count reaches the threshold, it caches the data information and stops forwarding. After receiving the message from the sink node, it continues to forward. Such a transmission process effectively eliminates information redundancy, saves energy consumption of sensor nodes, and prolongs the lifetime of the entire network system.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP212.9;TN915.08

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