摘要
针对异构网络中的带宽分配及网络的负载均衡问题,提出了一种异构无线网络负载均衡的联合优化模型,该模型在一定条件下利用用户的带宽进行负载成本和网络效用的建立,并通过求解网络与用户的关联矩阵来得到带宽在网络中的优化分配方案,使异构无线网络达到负载均衡。仿真结果表明,联合优化模型的结果在最小化负载成本以及优化网络总效用性能之间,它让用户通过在不同网络间的切换使网络带宽优化分配、网络负载达到均衡。
This paper proposed a joint optimization model for bandwidth allocation and network load balancing,it utilized the bandwidth of users to establish network utility and cost functions under the constraints,through the association matrix the model could get the scheme of bandwidth making heterogeneous wireless networks balanced.The simulations demonstrate the result of joint optimization model is distributed among the proposed cost functions and the network utility;it also can optimize the allocation of bandwidth to achieve load balancing of networks.
出处
《计算机应用研究》
CSCD
北大核心
2010年第11期4248-4250,4253,共4页
Application Research of Computers
基金
重庆市教委科学技术研究项目(KJ080522)
重庆市自然科学基金资助项目(CSTC
2008BB2413)
关键词
异构无线网络
网络负载均衡
关联矩阵
负载成本
网络效用
heterogeneous wireless networks
network load balance
association matrix
cost functions
network utility
