随机异构网络的平衡点分析与设计  

Analysis and Design of Equilibrium for Stochastic Heterogeneous Network

作　　者：郑志娴[1] 曾凌静[1] 

机构地区：[1]福建船政交通职业学院信息工程系,福建福州350007

出　　处：《广东石油化工学院学报》2017年第6期51-55,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：福建省教育厅科技项目(JAT160715)

摘　　要：建立了具有FAST和RENO协议、各路线TCP连接的建立是泊松随机过程、其传送文件尺寸服从指数分布统计规律的多链路网络拥塞控制非线性规划模型。构造了含有TCP连接逗留时间的Lyapunov函数,证明了当一些链路处于重流量强度条件下,当选择各路线流量强度作为其优化模型平衡点时,能够保证各路线TCP连接数保持长时间尺度的稳定、TCP连接取得较小的等待时间和各TCP端取得最大聚合效用。应用Kuhn-Tucker定理证明了可以根据TCP端的局部信息,适当选取FAST参数,驱驶链路带宽分配到上述期望的平衡点。仿真表明该方法是有效的。A multi - links network congestion control model shared by TCP Reno and Fast, in which Tcp connection arrivals are stochastic poisson process and each has a exponentially distributed documents size is set up. When some of the resources are in heavy traffic, a Lya-punov function including each waiting time is constructed to prove the large time scale stability of the TCP connection number, to obtain shortest TCP connection waiting time and maximum TCP utility if each route,s traffic intensity is the optimal model equilibrium. Kuhn - Tucker theorem is used to improve that the driving link bandwidth can be distributed to any desired equilibrium above by an appropriate choice of Fast parameter based on the TCP end local information. NS - 2 simulations are presented to verify this method.

关 键 词：随机 异构 非线性规划 重流量强度 平衡点 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]