可重配置系统中的联合负载控制及其终端选择算法  

A Joint Load Control Algorithm with Terminal Selection for the Reconfigurable Systems

作　　者：冯志勇[1] 张平[1] 张永靖[1] 蔡胡颖[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《电子与信息学报》2009年第4期893-896,共4页Journal of Electronics & Information Technology

基　　金：欧盟FP6端到端重配置(IST-2005-027714);国家863计划项目(2006AA01Z276);国家自然科学基金重点项目(60632030);国家973计划项目(2009CB320406)资助课题

摘　　要：该文基于现有端到端可重配置系统架构,提出了一种改进的动态门限联合负载控制方法,以适应不同负载条件下对负载均衡的要求,达到资源的有效利用。同时,结合终端的可重配置特点及业务要求的多样性,在执行网络发起的垂直切换过程中采用了基于层次分析法的终端选择算法,从而在均衡异构网络负载的同时减少系统开销和对用户的影响。仿真结果表明,该方法能够在保证用户满意度的同时有效地减轻重叠覆盖区域的网络拥塞,提高系统性能。Based on the current end-to-end reconfigurable system architecture, an enhanced dynamic threshold joint load control algorithm is proposed to adapt to the load balancing requirements under different load conditions in order to achieve efficient resource utilization. Considering the terminal reconfigurability and the service variety, an AHP-based terminal selection algorithm is adopted for the network-initiated vertical handover process to balance the load of heterogeneous networks while reducing the system overhead as well as the impact on end-user. Simulation results show that the proposed algorithms are effective in relieving congestion and improving the system performance across the overlapped networks while guaranteeing the user＇s satisfaction.

关 键 词：无线通信 异构 可重配置 负载均衡 垂直切换 终端选择 

分 类 号：TN929.5[电子电信—通信与信息系统]