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

Abstract

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

CLC Number:

TP393.04

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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References 17

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Video multipath transmission mechanism with load balancing in the FiWi network

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