基于网络编码和SDN的车载网络研究

发布时间：2018-04-21 07:02

本文选题：车载网 + 网络编码　；参考：《深圳大学》2017年硕士论文

【摘要】：汽车时代的到来,使得车载终端成为手机和电脑之后,发展迅猛的终端产品。随着互联网的快速发展和城市拥堵的急剧恶化,人们对通过车载终端接入网络来提高互联网服务体验和治理城市拥堵的需求也越来越迫切。同时,近几年发展物联网技术的呼声越来越高,有专家预计将在2017年迎来物联网的爆发式发展,车载网络作为物联网的一个重大组成部分,意义重大。然而,车载网络特殊的应用场景,使得这个网络异常复杂,发展缓慢。车载网络的发展中不断面临着各种挑战:如何应对高速移动下,车载终端频繁快速的接入切换、如何管理众多车载终端、如何提高无线资源的适用效率、以及如何灵活部署网络通信系统等等。面对这些问题,本文通过对网络编码和软件定义网络的深入研究,分析他们的优点和车载网络面临的问题,将网络编码和软件定义网络引入到车载网络领域,提出一些解决方案并且通过仿真和搭建模拟环境进行可行性验证。1)对网络编码进行深入研究,选择二进制锯齿码用于车载网络数据传输,并对其进行算法改进,编程实现,仿真对比;2)提出了一种随机移位网络编码发送机制,并且设计了两种检测数据包有用性的方法;3)结合网络编码和软件定义网络的优势,设计了一种新的分布式数据存储算法;4)通过对软件定义网络和WLAN接入点选择策略的研究了解,提出了基于软件定义网络的车载单元接入点选择策略。
[Abstract]:With the arrival of the automobile era, the vehicle terminal has developed rapidly after the mobile phone and computer. With the rapid development of the Internet and the rapid deterioration of urban congestion, it is more and more urgent for people to improve the experience of Internet services and manage urban congestion by using vehicle-mounted terminals to access the network. At the same time, the voice of developing Internet of things technology is increasing in recent years. Some experts expect to usher in explosive development of the Internet of things in 2017. As a major component of the Internet of things, vehicular network is of great significance. However, the special application scenario of vehicular network makes the network extremely complex and slow to develop. In the development of vehicular network, there are many challenges: how to deal with the frequent and fast access switch of vehicle terminal, how to manage many vehicle terminals, how to improve the efficiency of wireless resource application. And how to deploy network communication system flexibly. In the face of these problems, this paper analyzes the advantages of network coding and software definition network, and introduces the network coding and software definition network into the field of vehicle network. Put forward some solutions and verify the feasibility of network coding through simulation and build simulation environment. We select binary sawtooth code for vehicle network data transmission, and improve its algorithm and programming. (2) A random shift network coding and transmitting mechanism is proposed, and two methods for detecting the usefulness of data packets are designed, which combine the advantages of network coding and software definition of network. In this paper, a new distributed data storage algorithm is designed. Based on the research of software defined network and WLAN access point selection strategy, a vehicle unit access point selection strategy based on software defined network is proposed.
【学位授予单位】：深圳大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5;U495

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