一种OpenWrt物联网家庭网关服务质量的研究与设计

发布时间：2018-05-27 08:10

本文选题：QoS(Quality + of　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：随着物联网和互联网的进一步融合,家庭数字化服务逐渐增多,家庭网关的作用越来越突出,负载也越来越重。未来家庭环境中各式各样的数字化服务设备都需要连接互联网,例如个人电脑,数字电视,智能家电,可穿戴医疗设备等。家庭网络趋于复杂化,众多的网络应用之间相互影响,网络服务可靠性和网络服务质量逐渐被人们所关注。传统的家庭路由器和近几年新兴的物联网网关目前大多只专注于异构网络的互连互通和Internet的接入,并没有针对家庭网络服务质量做出系统的设计和实现。因此本文设计和实现了一种基于OpenWrt系统的家庭网络服务质量软件,使得家庭网络网络性能得到提升。服务质量(QoS)技术目前主要应用于IP网络中的骨干网和服务器上,无线WLAN的服务质量技术也是近年来的热点。而一般的家庭网络目前仍在提供“尽力而为”的服务,不仅对现有的网络应用没有Qo S保障,而且也无法面对已经到来的物联网和云计算所带来的各种网络应用。本论文通过对未来家庭网络和家庭网关网络应用特点进行分析和阐述,结合Linux下的Qo S技术,设计了物联网家庭网关Qo S管理,并对Qo S实现的效果进行了测试。围绕家庭网关的Qo S研究、设计和测试,本文主要完成了以下工作:1.对IP网络的服务质量体系和技术进行了深入的分析和总结;2.分析家庭网络应用的网络特性,总结家庭网络现有的QoS问题,提出适合家庭网络的Qo S方案。3.基于HTB(分层令牌桶)队列思想,对家庭网络业务进行分层分类。4.结合Linux内核的Qo S实现技术,利用家庭网关的嵌入式特点,完成基于Linux内核的OpenWrt系统移植,并且在OpenWrt系统下,依据适合家庭网络的Qo S方案,完成Qo S软件的设计与实现。最后在实际的网络环境中进行了上下行带宽、网络时延和网络抖动等参数的实际测试。
[Abstract]:With the further integration of the Internet of things and the Internet, the home digital services are gradually increasing, the role of home gateway is becoming more and more prominent, and the load is becoming more and more heavy. All kinds of digital services in the future home environment need to be connected to the Internet, such as personal computers, digital TV, smart appliances, wearable medical devices and so on. Home network is becoming more and more complicated, and many network applications affect each other. People pay more and more attention to network service reliability and network service quality. Traditional home routers and emerging Internet of things gateways in recent years mostly focus on the interconnection of heterogeneous networks and Internet access, and there is no systematic design and implementation for the quality of service of home networks. Therefore, this paper designs and implements a kind of home network service quality software based on OpenWrt system, which can improve the performance of home network. Quality of Service (QoS) technology is mainly used in backbone networks and servers in IP networks. The QoS technology of wireless WLAN is also a hot topic in recent years. At present, the average home network still provides "best effort" service. It not only has no QoS guarantee for the existing network applications, but also can not face all kinds of network applications brought about by the coming Internet of things and cloud computing. By analyzing and expounding the application characteristics of home network and home gateway network in the future, combining with QoS technology under Linux, this paper designs the QoS management of Internet of things home gateway, and tests the effect of QoS implementation. Around the home gateway QoS research, design and test, this paper mainly completed the following work: 1. 1. The quality of service (QoS) system and technology of IP network are analyzed and summarized in detail. This paper analyzes the network characteristics of home network application, summarizes the existing QoS problems of home network, and puts forward a QoS scheme. 3 which is suitable for home network. Based on the idea of HTB (hierarchical token Bucket) queue, the hierarchical classification of home network services. 4. Combining with the QoS implementation technology of Linux kernel and utilizing the embedded characteristic of home gateway, the porting of OpenWrt system based on Linux kernel is completed. Under the OpenWrt system, according to the QoS scheme suitable for home network, the design and implementation of QoS software is completed. Finally, the parameters of uplink and downlink bandwidth, network delay and network jitter are tested in the actual network environment.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09

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