一种多并发高速通信的线上教育平台设计  

Design of online education platform for multi⁃concurrent high⁃speed communication

作　　者：彭小华 李昆仑[1] 钟林辉[2] 廖频 PENG Xiaohua;LI Kunlun;ZHONG Linhui;LIAO Pin(Nanchang University College of Science and Technology,Nanchang 330029,China;School of Computer Information Engineering,Jiangxi Normal University,Nanchang 330000,China;School of Information Engineering,Nanchang University,Nanchang 330000,China)

机构地区：[1]南昌大学科学技术学院,江西南昌330029 [2]江西师范大学计算机信息工程学院,江西南昌330000 [3]南昌大学信息工程学院,江西南昌330000

出　　处：《现代电子技术》2021年第18期92-96,共5页Modern Electronics Technique

基　　金：江西省教育厅科学技术项目(GJJ151510);江西省教育厅科学技术项目(GJJ191555);国家自然科学基金项目(61462040)。

摘　　要：针对现有线上教育平台的低质量、高时延与弱互动的用户体验问题,文中提出一种支持多并发高速通信功能的新型线上教育平台。首先,通过分析接收端缓冲区与带宽、网络时延与丢失率,设计通信网络链路分发分流策略;然后,结合Greedy算法、帕累托分布与排队模型理论,建立一种异构网络环境下的多流并发通信传输控制模型;最终,采用萤火虫群算法模拟最优求解目标,完成系统总体设计。仿真测试结果表明,与传统的负载均衡分流策略分组方案相比,文中所提方案的通信丢失率可降低约8%;在传输音视频数据方面,该平台具有更高的通信质量、更低的传输时间和更强的互动体验。Since the existing online education platforms have the problems of low⁃quality,high⁃delay,and weakly interactive user experience,a new online education platform supporting multi⁃concurrent high⁃speed communication functions is proposed in this paper.First,by analyzing the buffer and bandwidth of the receiving end,network delay and loss rate,the communication network link distribution and shunt strategy is designed.And then,in combination with Greedy algorithm,Pareto distribution and queuing model theory,a multi⁃stream concurrent communication transmission control model in heterogeneous network environment is established.The firefly swarm algorithm is used to simulate the optimal solution target to complete the overall design of the system.The simulation test results show that,in comparison with the grouping scheme of the traditional load balancing distribution strategy,the communication loss rate of the proposed scheme can be reduced by about 8%,and the platform has higher communication quality,shorter transmission time and stronger interactive experience in the aspects of transmitting audio and video data.

关 键 词：线上教育平台 多并发通信 异构网络 网络链路分发 传输控制模型 系统设计 

分 类 号：TN919-34[电子电信—通信与信息系统] TP311[电子电信—信息与通信工程]