一种负载均衡的FiWi网络视频多路径传输机制

doi:10.19665/j.issn1001-2400.2021.03.008

西安电子科技大学学报 ›› 2021, Vol. 48 ›› Issue (3): 63-70.doi: 10.19665/j.issn1001-2400.2021.03.008

• 信息与通信工程&机械工程 • 上一篇下一篇

一种负载均衡的FiWi网络视频多路径传输机制

吕翊^1,^2,³(),朱博^1,^2,³(),吴大鹏^1,^2,³()

1.重庆邮电大学通信与信息工程学院,重庆 400065
2.重庆高校市级光通信与网络重点实验室,重庆 400065
3.泛在感知与互联重庆市重点实验室,重庆 400065

收稿日期:2020-12-03 出版日期:2021-06-20 发布日期:2021-07-05
通讯作者: 朱博
作者简介:吕翊(1963—),男,教授,E-mail:luyi@cqupt.edu.cn|吴大鹏(1979—),男,教授,博士,E-mail:wudp@cqupt.edu.cn
基金资助:
国家自然科学基金(61771082);国家自然科学基金(61871062);重庆市高校创新团队建设计划(CXTDX201601020)

Video multipath transmission mechanism with load balancing in the FiWi network

LÜ Yi^1,^2,³(),ZHU Bo^1,^2,³(),WU Dapeng^1,^2,³()

1. School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China
2. Chongqing Key Laboratory of Optical Communication and Networks,Chongqing 400065,China
3. Chongqing Key Laboratory of Ubiquitous Sensing and Networking,Chongqing 400065,China

Received:2020-12-03 Online:2021-06-20 Published:2021-07-05
Contact: Bo ZHU

摘要/Abstract

摘要：

针对用户差异化的需求及融合网络局部过载造成视频业务中断的问题,提出一种负载均衡的视频传输机制。首先根据光纤无线接入网络的前端结构特点来改进分裂多径路由协议以获得路径选取模型;其次计算视频在无线侧的延迟和路径差分延迟,并确定其阈值作为用户体验质量约束;最后在考虑用户体验质量的同时,采用多级惩罚函数的粒子群优化算法进行视频分发。仿真结果表明,所提机制性能优于吞吐能力感知负载分发、增强延迟控制负载分发以及延迟-能量-质量感知的多路径算法,在避免用户流失的同时,能够有效地使网络负载保持均衡,缓解网络拥塞现象。

关键词: 光纤无线接入网络, 负载均衡, 多路径, 体验质量约束

Abstract:

Aiming at the differentiated needs of users and the problem of video service interruption caused by the local overload of the converged network,a load-balanced video transmission mechanism is proposed.First,the split multipath routing protocol is improved to obtain the path selection model according to the front-end structural characteristics of the optical fiber wireless access network;second,we calculate the path differential delay and the video transmission delay on wireless side,and set their threshold as the quality of the experience constraint.Finally,while considering the quality of user experience,a particle swarm optimization algorithm with a multi-stage penalty function is used for video distribution.Simulation results show that the proposed mechanism is better than the throughput-aware load-sensing algorithms,enhances delay-control load distribution algorithms and delay-energy-quality aware multipath algorithms,and that it can effectively balance the network load and alleviate network congestion while avoiding user loss.

Key words: fiber-wireless access network, load balancing, multipath, quality of experience constraint

中图分类号:

TP393.04

吕翊,朱博,吴大鹏. 一种负载均衡的FiWi网络视频多路径传输机制[J]. 西安电子科技大学学报, 2021, 48(3): 63-70.

LÜ Yi,ZHU Bo,WU Dapeng. Video multipath transmission mechanism with load balancing in the FiWi network[J]. Journal of Xidian University, 2021, 48(3): 63-70.

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一种负载均衡的FiWi网络视频多路径传输机制

Video multipath transmission mechanism with load balancing in the FiWi network

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