在研究3G中GMLC(Gateway Mobile Location Center)系统结构、软件结构和消息流程的基础上,利用具有固定反馈次数的M／G／1排队系统对GMLC进行建模。为了验证模型的有效性,在北京邮电大学网络与交换技术国家重点实验室开发的GMLC系统中...在研究3G中GMLC(Gateway Mobile Location Center)系统结构、软件结构和消息流程的基础上,利用具有固定反馈次数的M／G／1排队系统对GMLC进行建模。为了验证模型的有效性,在北京邮电大学网络与交换技术国家重点实验室开发的GMLC系统中进行了相关测试。最后对测试结果和模型计算结果进行了对比分析,结果显示该性能模型能够真实反映系统的性能,是一个有效的数学模型。展开更多
Based on the system architecture and software structure of GMLC (Gateway Mobile Location Center) in 3G (third generation), a new dynamic load-balancing algorithm is proposed. It bases on dynamic feedback and imports t...Based on the system architecture and software structure of GMLC (Gateway Mobile Location Center) in 3G (third generation), a new dynamic load-balancing algorithm is proposed. It bases on dynamic feedback and imports the increment for admitting new request into the load forecast. It dynamically adjusts the dispatching probability according to the remainder process capability of each node. Experiments on the per- formance of algorithm have been carried out in GMLC and the algorithm is compared with Pick-KX algorithm and DFB (Dynamic FeedBack) algorithm in average throughput and average response time. Experiments re- sults show that the average throughput of the proposed algorithm is about five percents higher than that of the other two algorithms and the average response time is four percents higher under high system loading condi- tion.展开更多
无线定位技术是第三代移动通信系统中一个非常有前景的技术。文章首先对无线定位技术的网络构架进行了描述,并阐述了各个关键的网络元素的功能,然后分析研究了目前在3G P P标准中的几种定位方法以及各个定位方法的信令流程,最后对3G中...无线定位技术是第三代移动通信系统中一个非常有前景的技术。文章首先对无线定位技术的网络构架进行了描述,并阐述了各个关键的网络元素的功能,然后分析研究了目前在3G P P标准中的几种定位方法以及各个定位方法的信令流程,最后对3G中无线定位技术的应用前景进行了展望。展开更多
文摘在研究3G中GMLC(Gateway Mobile Location Center)系统结构、软件结构和消息流程的基础上,利用具有固定反馈次数的M／G／1排队系统对GMLC进行建模。为了验证模型的有效性,在北京邮电大学网络与交换技术国家重点实验室开发的GMLC系统中进行了相关测试。最后对测试结果和模型计算结果进行了对比分析,结果显示该性能模型能够真实反映系统的性能,是一个有效的数学模型。
基金(1) National Science Fund for Distin-guished Young Scholars (No. 60525110) (2) Special-ized Research Fund for the Doctoral Program of Higher Education (No. 20030013006)+3 种基金 (3) National Specialized R&D Project for the Product of Mobile Communica-tions (Development and Application of Next Generation Mobile Intelligent Network) (4) Key Project of Devel-opment Fund for Electronic and Information Industry (Core Service Platform for Next Generation Network) (5) Development Fund Project for Electronic and Infor-mation Industry (Value-added Service Platform and Ap-plication System for Mobile Communications) (6) Na-tional Specific Project for Hi-tech Industrialization and Information Equipments (Mobile Intelligent Network Supporting Value-added Data Services).
文摘Based on the system architecture and software structure of GMLC (Gateway Mobile Location Center) in 3G (third generation), a new dynamic load-balancing algorithm is proposed. It bases on dynamic feedback and imports the increment for admitting new request into the load forecast. It dynamically adjusts the dispatching probability according to the remainder process capability of each node. Experiments on the per- formance of algorithm have been carried out in GMLC and the algorithm is compared with Pick-KX algorithm and DFB (Dynamic FeedBack) algorithm in average throughput and average response time. Experiments re- sults show that the average throughput of the proposed algorithm is about five percents higher than that of the other two algorithms and the average response time is four percents higher under high system loading condi- tion.
