异构网络中基于能量感知的并行多径传输方案  

Energy-aware Parallel Multipath Transmission in Heterogeneous Network

作　　者：王振朝[1,2] 杨小龙[1] 薛文玲[1,2] 李延[1] 李会雅[1] 

机构地区：[1]河北大学电子信息工程学院,河北保定071002 [2]河北省数字医疗工程重点实验室,河北保定071002

出　　处：《小型微型计算机系统》2016年第3期526-530,共5页Journal of Chinese Computer Systems

基　　金：河北省自然基金项目(F2014201168)资助;保定市科学技术研究与发展指导计划项目(14ZG036)资助

摘　　要：为提高整个异构网络的能量利用率,提出一种新的基于能量感知的并行多径传输方案ea MTCP(energy-aware MPTCPbased content delivery scheme).方案以Linked Increases算法为基础,利用端对端能耗模型获得整个网络的能耗指标,再按照拥塞窗口增加量与路径能耗量的开方成反比例的原则实时调整拥塞窗口大小,并根据吞吐量与拥塞窗口的关系得到各接入网的吞吐量,最后按照各接入网的吞吐量与核心网所能承载吞吐量之比作为各接入网的最优分流比进行分流.仿真结果显示,本方案既能保证负载均衡和单条TCP流与MPTCP流的公平性,又可在网络吞吐量基本不变的情况下,有效提升整个网络的能量利用率.To increase the energy efficiency of the whole heterogeneous network,a newenergy-aware MPTCP-based content delivery scheme（ ea MTCP） is proposed. For achieving the optimal distribution of the flows based on the Linked Increases algorithm,the scheme first gets energy consumption indicator of the terminal-to-terminal model and then adjusts congestion windowin real-time according to the principle that the congestion windowincreases is inversely proportional to the square root of the energy cost on each path. After that,depending on the throughput in connection with the congestion window,each access network throughput is obtained.At last,the traffic of the core network is distributed on the basis that each access network＇s optimal shun ratio is equal to each access network throughout in the proportion of the throughout that the core network can carry. Simulation results demonstrate the proposed scheme not significantly affect network throughput,but can improve energy utilization in entire heterogeneous network while keeping the load balance and fairness between single TCP flowand MPTCP flow.

关 键 词：异构网络 能量感知 并行多径传输 负载均衡 网络吞吐量 拥塞窗口 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]