摘要
当前的因特网已经演变成为巨大的、复杂的系统,它由各种各样的终端用户、传输线路以及众多的路由器连接而成,承载运营着各种各样的应用,需要多种流量管理的方法才能保证它的健康运行.在网络效用最大化的模型的基础上研究了多路径网络联合拥塞控制和流量工程的跨层优化模型,基于拉格朗日对偶分解得到了分布式的求解方法,仿真结果验证了算法的收敛性,说明了算法可以有效优化网络的资源利用率.
The current Internet has evolved into a~ huge, complex system, which consists of a wide variety of end-users, transmission lines and numerous routers connected together, carry- ing a wide variety of applications, requires a variety of traffic management methods in order to ensure its healthy operation. In this paper, the network utility maximization model based on cross layer optimization model of joint multi-path network congestion control and traffic engineering is proposed, and it can deduce the distributed solution based on the Lagrange dual decomposition method. Simulation results verify the convergence of the algorithm, indicating that the algorithm can effectively optimize network resource utilization.
出处
《数学的实践与认识》
CSCD
北大核心
2013年第21期116-123,共8页
Mathematics in Practice and Theory
基金
国家科技支撑计划课题(2012BAH02B01)
国家973重点基础研究发展计划(2012CB315901
2012CB315905)
国家863高技术研究发展计划(2011AA01A103)
关键词
网络效用最大化
拥塞控制
流量工程
跨层优化
对偶分解
network utility maximization
congestion control
traffic engineering
cross-layer optimization
duM decomposition
