计算机工程 ›› 2019, Vol. 45 ›› Issue (10): 78-83.doi: 10.19678/j.issn.1000-3428.0052219

• 移动互联与通信技术 • 上一篇    下一篇

一种基于网络切片的带宽资源编排算法

龙恳, 钱美伶, 余翔, 陈侃   

  1. 重庆邮电大学 通信与信息工程学院, 重庆 400065
  • 收稿日期:2018-07-26 修回日期:2018-10-18 出版日期:2019-10-15 发布日期:2018-10-28
  • 作者简介:龙恳(1978-),男,讲师、博士,主研方向为新一代移动通信关键技术;钱美伶,硕士研究生;余翔,正高级工程师;陈侃,硕士研究生。
  • 基金项目:
    国家科技重大专项(2017ZX03001004-004)。

A Bandwidth Resource Orchestration Algorithm Based on Network Slicing

LONG Ken, QIAN Meiling, YU Xiang, CHEN Kan   

  1. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2018-07-26 Revised:2018-10-18 Online:2019-10-15 Published:2018-10-28

摘要: 为在无线虚拟化环境下进行高效的带宽资源分配,研究基于增强型移动宽带(eMBB)与高可靠低时延通信(uRLLC)的带宽资源编排问题。对于小型网络,将带宽资源编排问题简化为带宽资源分配问题并给出全局最优解。针对大型网络,结合松弛理论将带宽资源编排问题转化为带宽资源编排的松弛问题,并提出一种基于贪婪理论的启发式算法HPGH。仿真结果表明,通过解决带宽资源编排问题,可以按需为用户动态分配带宽资源,且HPGH算法能够有效提升eMBB业务的吞吐量,降低uRLLC业务的最大传输时延。

关键词: 网络切片, 增强型移动宽带, 高可靠低时延通信, 带宽资源编排, 松弛理论, 启发式算法

Abstract: In order to allocate bandwidth resources efficiently in wireless virtualization environment,the bandwidth resource orchestration problem based on enhanced Mobile Broadband(eMBB) and ultra Reliable Low Latency Communication(uRLLC) is studied.For small-scale networks,the problem of bandwidth resource orchestration is simplified to the problem of bandwidth resource allocation and the global optimal solution is given.For large-scale networks,the bandwidth resource orchestration problem is transformed into the bandwidth resource orchestration relaxation problem based on the relaxation theory,and a heuristic algorithm HPGH based on the greedy theory is proposed.Simulation results show that by solving the problem of bandwidth resource orchestration,bandwidth resources can be dynamically allocated to users on demand,and the HPGH algorithm can effectively improve the throughput of eMBB services and reduce the maximum transmission delay of uRLLC services.

Key words: Network Slicing(NS), enhanced Mobile Broadband(eMBB), ultra Reliable Low Latency Communication(uRLLC), bandwidth resource orchestration, relaxation theory, heuristic algorithm

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