基于负载均衡的MEH静态切换机制

A static MEH handover scheme based on load balancing

对欧洲电信标准化协会(ETSI)提出的针对移动边缘主机(MEH)服务器的切换机制进行了补充和完善,提出了基于负载均衡的MEH静态切换机制。该机制通过将用户设备对应应用实例迁移到与其所属本地高负载服务器相邻的某个低负载服务器,实现了缓解原控制服务器处瓶颈效应、均衡网络节点间负载、优化信令平均等待时延的目的。分析和仿真结果表明,提出的静态切换机制能够在均衡网络负载和提升用户满意度方面对ETSI规范提供有效的补充和完善。

Based on the MEH（mobile edge host） handover scheme proposed by ETSI（European Telecommunications Standards Institute）, an improved and supplementary static handover scheme was put forward. By transferring the former C-MEH（controlling MEH） to a neighbor server with lighter load, the scheme decreased the average waiting time of a signal message at the former C-MEH site. The negative effect of bottle-neck at the former C-MEH could also be lightened. Analysis and simulation results show that the scheme can provide effective and positive supplementary to the ETSI specification in balancing network load and improving user＇s satisfaction.