计算机技术与发展2017，Vol.27Issue(11)：187-191,195,6.DOI:10.3969/j.issn.1673-629X.2017.11.040
基于负载均衡的分布式IMS体系架构的优化
Optimization of Distributed IMS Architecture Based on Load Balancing
摘要
Abstract
The IP Multimedia Subsystem ( IMS) serves as universal platform for fast and standardized creation of mobile services. Typical deployment models for the IMS favor centralized session control and application servers. Furthermore,they rely on sophisticated border el-ements for function service like policy enforcement. One step towards a simpler architecture is the integration of call control,application server and media functions into border elements,which leads to a distributed IMS architecture with equal processing nodes and drastically reduces system complexity and scales on functional module instantiation basis. However,it reduces the statistical gain. Therefore,a con-cept of load balancing is proposed to solve the problem. The load-sharing mechanism is lightweight and minimal overhead and can be fine-tuned based on an equation that estimates the load-sharing parameters,including the relocation overhead and the load asymmetry pa-rameter x . The simulation results show its basic characteristics and discuss the benefits of load balancing,which will be helpful for further improving the implementation of load sharing.关键词
移动服务平台/IP多媒体子系统构架/分布式/负载均衡Key words
MSP/IMS/distributed/load balancing分类
信息技术与安全科学引用本文复制引用
罗威,姜元建,李洋,郎赫,张宇辰,王慧敏..基于负载均衡的分布式IMS体系架构的优化[J].计算机技术与发展,2017,27(11):187-191,195,6.基金项目
国家自然科学基金资助项目(61302100) （61302100）
国网天津市电力2016年科技项目(KJ16-1-16) （KJ16-1-16）
