维普论文检测系统/IP PAPER CHECK SYSTEM邱煜佳毕业论文-基于QUIC多路径传输算法研究与实现【原文对照报告-大学生版】报告编号：ea31c85518aae61a检测时间：2021-04-2611：20：55检测字符数：24524作者姓名：邱煜佳所属单位：广东工业大学全文总相似比复写率他引率自引率专业术语检测结论：9.22%7.22%2.0%0.0%0.0%其他指标：自写率：90.78%高频词：传输，路径，数据，节点，多路典型相似文章：无指标说明：复写率：相似或疑似重复内容占全文的比重他引率：引用他人的部分占全文的比重自引率：引用自己已发表部分占全文的比重自写率：原创内容占全文的比重典型相似性：相似或疑似重复内容占全文总相似比超过30%专业术语：公式定理、法律条文、行业用语等占全文的比重总相似片段期刊：8博硕：19综合：0相似片段：61外文：0自建库：1互联网：33检测范围：中文科技期刊论文全文数据库中文主要报纸全文数据库中国专利特色数据库博士/硕士学位论文全文数据库中国主要会议论文特色数据库港澳台文献资源外文特色文献数据全库维普优先出版论文全文数据库互联网数据资源/互联网文档资源高校自建资源库图书资源古籍文献资源个人自建资源库年鉴资源IPUB原创作品时间范围：1989-01-01至2021-04-26维普论文检测系统VIP PAPER CHECK SYSTEM原文对照颜色标注说明：■自写片段■复写片段（相似或疑似重复）口引用片段（引用）■专业术语（公式定理、法律条文、行业用语等）本科毕业设计（论文）基于QUIC多路径传输算法研究与实现学院信息工程学院专业信息工程年级班别2017级1班学号3117002404学生姓名邱煜佳指导教师程昱2021年5月摘要随着大数据、物联网、云计算等互联网新兴技术的发展，用户对网络带宽的需求迅猛增加，如何为用户提供更大带宽，降低传输延迟，已成为学术界重点关注的话题。互联网多路径传输技术正是在这样的背景下应运而生。多路径传输，相对于传统的单路径传输，有利于充分利用网络资源、减少拥塞、提高传输可靠性、降低延迟，最终能够提高用户体验，增加企业收益。本文主要基于QIC传输协议在应用层搭建了一个多路径传输系统，在此基础上，提出了一种实现负载均衡的路径选择算法，该算法能够对多路径传输系统的性能进行优化，并保证数据的有序。本2维普论文检测系统VIP PAPER CHECK SYSTEM文主要的工作和贡献如下。(1)首先，本文搭建了基于QUIC的多路径传输系统。本文主要从发送端、云节点、接收端三方面对多路径传输系统进行需求分析和功能实现。在这一环节中，云节点作为发送端和接收端的中级，其转发功能主要利用Ngix1.90开发版的新特性“流式传输”实现。我们将发送端、云节点、接收端分别部署在阿里云的Liux测试集群中进行传输测试。这项工作为后面研究多路径传输的路径选择及流量分配奠定了基础。(2)其次，本文实现了基于QUIC多路径传输系统的中间件。本文发现，Ngix的“流式传输”在支持QUIC的过程中，可扩展性弱，因而网络状态信息得不到合理利用。为了开展性能优化研究，本文仿照Ngix的功能特点，在云节点实现了基于QUIC的多路径传输系统中间件。实验表明，该中间件能很好地替代WNgx的工作。(3)最后，本文提出了一种基于传输延迟的路径选择算法LTLS(Path Selection Based on Least TransmissionLatency Scheduler),并在多路径传输系统中进行实现。本文利用Linux底层的Netfilter模块，实现了网络状态信息的携带，减少了一次网络通信。Netfilteri能够在云节点往发送端发回确认包时，在Liux底层拦截IPv4报文，并将云节点的网络状态信息写入数据包首部的选项(0tio)字段。发送端解析选项字段，实时获取每个云节点的负载和转发速率，并在LTLS的指导下做出决策，调整下一次发送数据的路径。关键词：多路径，传输系统，负载均衡，路径选择注：本设计（论文）选题来源于广东省自然科学基金项目(2021A1515011341)AbstractWith the development of big data,Internet of Things,cloud computing and other emergingInternet technologies,the demand of users for network bandwidth has increased rapidly.How toprovide users with more bandwidth and reduce transmission delay has become a focus of academiccircles.The Internet multipath transmission technology arises at the historic moment under thecircumstances.Compared with traditional single path transmission,multi-path transmission isbeneficial to make full use of network resources,reduce congestion,improve transmissionreliability,reduce latency,and ultimately improve user experience and increase enterprise revenue.In this paper,a multi-path transmission system is built in the application layer based on the QUICtransmission protocol.On this basis,a path selection algorithm to realize load balancing isproposed.The algorithm can optimize the performance of the multi-path transmission system andensure the orderly data.The main work and contributions of this paper are as follows.(1)Firstly,this paper builds a multi-path transmission system based on QUIC.This paper mainlyanalyzes the requirements and functions of the multi-path transmission system from the sending end,the cloud node and the receiving end.In this link,the cloud node acts as the intermediate betweenthe sending end and the receiving end,and its forwarding function is mainly realized by using thenew feature "streaming transmission"in the development version of Nginx 1.90.We deployed thesender,cloud node and receiver in the Linux test cluster of Ali Cloud respectively for transmissiontest.This work lays a foundation for the future research on path selection and traffic allocationof multipath transmission.(2)Secondly,this paper implements the middleware of QUIC-based multipath transmission system,and integrates the deployment in the cloud node.It is found in this paper that the scalability ofstream of Nginx weak when it supports QUIC,so the network state information cannot be properlyutilized.In order to carry out the performance optimization research,this paper imitates thefunctional characteristics of Nginx and implements the QUIC-based multipath transmission systemmiddleware in the cloud node.Experiments show that the middleware can replace the work of Nginxwell.(3)Finally,a Path Selection algorithm LTLS(Path Selection Based on Least Transmission LatencyScheduler)is proposed and implemented in a multipath delivery system.In this paper,the Netfiltermodule at the bottom of Linux is used to carry network state information and reduce a networkcommunication.Netfilter can intercept IPv4 packets at the bottom of Linux when the cloud node sendsback the acknowledgement packet to the sender,and write the network status information of the cloud3