高技术通讯Issue(10)：22-31,10.DOI:10.3772/j.issn.10020470.2014.10.003
基于接入选择和业务转移的异构网络动态负载均衡机制
A dynamic load balance for heterogeneous wireless networks based on access selection and calls transfer
摘要
Abstract
To improve the overall performance of heterogeneous network systems, a novel dynamic load balancing mechanism based on access selection and calls transfer was proposed. A optimization model for access selection problems was given, and the optimal scheme for access selection was obtained by means of solving the optimal model. The access calls were assigned to all base stations evenly in accordance with the optimal scheme. In order to weaken the destructiveness of sudden calls from a hot area to the system load balance, a calls transfer strategy based on the threshold of the base station load rate was given. The experimental result showed that the proposed scheme performed better than that reported in literature in the four indicators of access blocking rate, calls dropping rate, load balance and system utilization rate, with the advantage of good application value.关键词
异构无线网络/负载均衡/接入选择/业务转移/网络资源管理Key words
heterogeneous wireless network/loads balance/access selection/calls transfer/network resource management引用本文复制引用
朱思峰,沈连丰,柴争义..基于接入选择和业务转移的异构网络动态负载均衡机制[J].高技术通讯,2014,(10):22-31,10.基金项目
国家自然科学基金(U1204618)，河南省重点科技攻关项目(112102210221)和河南省教育厅自然科学研究计划(12A520055)资助项目。 （U1204618）
