基于软件定义网络的无线传感器网络的研究与设计

发布时间：2018-04-13 12:03

本文选题：无线传感器网络 + 软件定义网络　；参考：《南京理工大学》2017年硕士论文

【摘要】：随着微电子、传感器、网络和无线通信等技术的快速发展,无线传感器网络作为一项关键设计,在各领域中的应用变得越发广泛和重要。然而,其固有的专用设计、网络部署后行为策略难更改、网络功能难管理等问题,也使得无线传感器网络的研究、设计和实际应用面临着巨大挑战。为此,本研究提出一种改进的基于软件定义网络思想的新型传感器网络系统及架构:SDN-WSN,并为其提供全面的软件解决方案。基于软件定义网络的思想,研究通过将传统的紧耦合网络架构分解为应用、控制、设备的三层分离式架构,实现了数据转发和控制逻辑的分离,提供了集中式信息收集、资源整合、网络管理和行为控制的创新系统,以解决现阶段无线传感器网络存在的固有局限性。研究中详述了系统中各网络组件的设计,改进并提出了一种基于SDN-WSN系统的网络重配置算法。研究中基于Cooja仿真平台和Contiki操作系统,在系统中引入了一种基于哈希算法的数据分类方式,完成了节点软件架构和功能模块的设计,并实现了其协议栈软件的开发。研究中设计开发了服务器端数据库和基于软件三层架构的终端用户监控中心,为网络中多监测区域的历史和实时信息提供了查询显示、算法处理、分析监控的平台。研究中构建了一个自动化网络性能基准测试平台,为系统提供了高效、全自动、标准化的网络性能基准测试手段。经仿真及测试,验证了 SDN-WSN系统能够提高传统无线传感器网络的可编程性、可扩展性、可配置性及可管理性,为软件定义网络思想在无线传感器网络中的研究与应用提供了新的尝试、思考和完整的软件解决方案。
[Abstract]:With the rapid development of microelectronics, sensors, networks and wireless communication, wireless sensor networks, as a key design, have become more and more widely and important in various fields.However, the inherent problems such as special design, difficult to change the behavior strategy after network deployment, and difficult to manage the network function make the research, design and practical application of wireless sensor networks face great challenges.In this paper, an improved sensor network system based on the idea of software definition network and its architecture:: SDN-WSNare proposed, and a comprehensive software solution is provided.Based on the idea of software definition of network, this paper studies the separation of data forwarding and control logic by decomposing the traditional tightly coupled network architecture into three separate architectures of application, control and equipment, and provides centralized information collection.Resource integration, network management and behavior control are innovative systems to address the inherent limitations of wireless sensor networks at this stage.In this paper, the design of each network component in the system is described in detail, and a network reconfiguration algorithm based on SDN-WSN system is proposed.Based on Cooja simulation platform and Contiki operating system, a data classification method based on hash algorithm is introduced in this paper. The design of node software architecture and function module is completed, and the development of protocol stack software is realized.In the research, the server database and the terminal user monitoring center based on the three-tier software architecture are designed and developed, which provides a platform for query display, algorithm processing and analysis of the history and real-time information of the multi-monitoring area in the network.In this paper, an automated network performance benchmarking platform is constructed, which provides an efficient, automatic and standardized network performance benchmark testing method for the system.Through simulation and test, it is proved that SDN-WSN system can improve the programmability, expansibility, configuration and manageability of traditional wireless sensor networks.It provides a new attempt, thinking and complete software solution for the research and application of software definition network in wireless sensor networks.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212.9;TN929.5

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