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LTE系统中的分布式负载迁移协商均衡算法
引用本文:王盛,任修坤,崔维嘉,郑娜娥. LTE系统中的分布式负载迁移协商均衡算法[J]. 计算机工程与设计, 2012, 33(2): 435-440
作者姓名:王盛  任修坤  崔维嘉  郑娜娥
作者单位:解放军信息工程大学信息工程学院,河南郑州,450002
摘    要:为了提高长期演进计划(long term evolution,LTE)系统中业务处理资源的利用率,降低由于系统处理资源分配不均而导致的呼损率,给出了一种适用于LTE系统的分布式负载迁移协商均衡算法.分析了LTE系统通信的特点,指出可利用LTE系统eNodeB (evolved NodeB)间使用X2接口进行数据通信的特点,在组网的eNodeB问进行负载迁移.在此基础上建立了负载迁移协商均衡模型,指出了算法的适用场景,说明了算法均衡粒度的选取标准和性能评价指标.通过与传统的轮询算法进行比较,使用分布式事件驱动方法对该算法进行了性能分析,验证结果表明了该算法的有效性.

关 键 词:长期演进计划  分布式  负载均衡  负载迁移  事件驱动

Distributed load transfer agreement balancing algorithm for LTE system
WANG Sheng , REN Xiu-kun , CUI Wei-jia , ZHENG Na-e. Distributed load transfer agreement balancing algorithm for LTE system[J]. Computer Engineering and Design, 2012, 33(2): 435-440
Authors:WANG Sheng    REN Xiu-kun    CUI Wei-jia    ZHENG Na-e
Affiliation:(College of Communication Engineering,PLA Information Engineering University,Zhengzhou 450002,China)
Abstract:To improve the utilization rate of service processing resources in LTE(long term evolution) system,and decrease the cell loss probability caused by imbalanced system resources allocation,a distributed load transfer agreement balancing(DLTAB) algorithm suitable for LTE system is proposed.Firstly,the characteristics of communication in LTE system are analyzed briefly.It is pointed out that the X2 interface in LTE system is used to do load balancing among netted eNodeBs,and the load transfer agreement balancing model is constructed.The suitable scene of this algorithm is pointed out;the standards of granularity selection and the performance evaluation policy are explained.Compared with traditional Round-Robin algorithm,the effectiveness of DLTAB is validated by distributed event driven simulation.
Keywords:LTE  distributed  load balancing  load transfer  event driven
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