基于分簇的无线传感网可生存性优化研究

发布时间：2018-03-21 13:32

本文选题：多轮分簇　切入点：分组　出处：《安徽理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：无线传感器网络近些年获得了很多关注,它们具有开发大量效益可观的应用的潜力,其已经可以用于诸如灾难管理,智能监视和边界安全等多个领域。在这些应用中,需要无人值守并且独立工作的传感器节点的集合。无线传感器网络中最大的缺陷是节点能量不足,可生存性是衡量网络服务质量的主要性能。分簇是在可生存性的前提下,为实现更好地利用节点的重要技术,这也有助于在网络中获得更好的负载分布。本文针对分簇算法及数据传输协议进行了优化,主要工作如下:(1)针对LEACH算法中簇头能量消耗过快的缺陷,提出一种基于分组的无线传感网可生存性多轮分簇算法LEACH-G,在分簇过程中采用分组的策略,利用信标节点signpost,在簇头选出之前承担通信任务,均衡整个网络能耗,并在簇头选取阈值中引入节点与基站之间的距离以及能量参数,可以降低10%-15%的网络能耗。(2)针对无线传感器网络分簇后数据在传输过程中易丢失以及传输路径的缺陷,提出了一种基于分组的无线传感网可生存性数据传输协议GCDT。通过计算数据包可达概率,将原始数据包分组,对数据进行加密设计,保证数据在传输前的完整性;建立簇头与基站间的多路径,并对多路径进行优化设计,确保分组数据包的可靠传输。与目前的可生存路由相比,GCDT协议的丢包率可降低约15%～28%,有效的提高数据传输的可靠性和网络可生存性。(3)为了评估所提协议的性能,利用MATLAB7.0在相同条件下仿真所提协议与已提出的可生存路由协议,根据已有的标准数据设置传感器节点个数及仿真实验场景参数(如节点数量、节点初始能量节点信息比特数等)。从网络生存时间、丢包率和平均能耗等方面仿真对比算法性能及效果,从而验证无线传感网分簇、数据传输及降低能耗的研究方案。
[Abstract]:In recent years, wireless sensor networks have received a lot of attention, they have developed a large number of benefits are considerable application potential, it can already be used in many fields such as disaster management, intelligent monitoring and border security. In these applications, sensor nodes need unattended and independent work. The biggest flaw in the wireless sensor network node energy shortage, survivability is the main performance measure of the quality of network service. The cluster is in the premise of survivability, in order to achieve better utilization of important technology nodes, which also helps to get better in the network load distribution. This paper optimized clustering algorithm and data transmission protocol. The main work is as follows: (1) the energy of cluster head LEACH algorithm consumes excessive defects, put forward a kind of wireless sensor network based on packet survivability multiple clustering algorithm LEACH-G, in The grouping strategy uses the clustering process, the beacon node signpost, undertake communication tasks in the cluster head selected before the balanced energy consumption of the whole network, and the cluster head selection is introduced between the node and the base station distance and energy parameter threshold, 10%-15% can reduce the energy consumption of the network. (2) aiming at the defects of the clustered wireless sensor networks after the data in the transmission process is easy to lose and the transmission path, a wireless sensor network based on packet survivability data transmission protocol GCDT. by calculating the packet to probability, the original data packet, data encryption design, ensure data integrity in the transmission before; establishing multi path cluster head and base station between, and to optimize the path design, ensure the reliable transmission of data packet. And the survivable routing protocol, GCDT packet loss rate can be reduced from about 15% to 28%, effectively. The reliability and survivability of high data transmission. (3) to evaluate the performance of the proposed protocol, using MATLAB7.0 simulation under the same conditions, the proposed protocol and proposed survivable routing protocol, according to the standard data set the number of sensor nodes and simulation scene parameters (such as the number of nodes, the initial node the node energy information bits etc.). The survival time of the network packet loss rate and average energy consumption and other aspects of simulation performance and effect, in order to verify the wireless sensor network clustering, scheme of data transmission and reduce energy consumption.

【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212.9;TN929.5

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