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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 that is connected by a wide variety of end users, transmission lines, and numerous routers that host and operate a wide variety of applications that require a variety of traffic management methods Can guarantee its healthy operation.Based on the model of network utility maximization, the cross-layer optimization model of multi-path network combined congestion control and traffic engineering is studied, and the distributed solution method is obtained based on Lagrange dual decomposition. The result verifies the convergence of the algorithm and shows that the algorithm can effectively optimize the resource utilization of the network.