多路并行传输中数据调度机制的研究  

Research on Data Scheduling Mechanism in Concurrent Multipath Transfer

作　　者：余东平[1] 王聪[2] 张剑峰[2] 李宁[2] 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院

出　　处：《军事通信技术》2015年第3期18-22,共5页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(61371123);江苏省自然科学基金资助项目(BK2011002)

摘　　要：文章研究了多路并行传输(CMT)场景中接收缓存阻塞问题产生的原因及对传输性能的影响。提出了一种适用于异构无线网络环境的多路并行传输数据调度机制,该机制能够通过往返传输时延等参数对当前各路径的吞吐量进行估计,并综合各条路径的状态分配待传输的数据包。通过仿真得出的结果可以看出,该数据调度机制能够在带宽非对称的网络环境中有效减少接收缓存的阻塞现象。The reasons and influence of receiver buffer blocking problem were studied in Concurrent Multipath Transfer（CMT）.And a novel data scheduling mechanism was also proposed which is suitable for CMT in the heterogeneous wireless networks environment.This mechanism can estimate the data throughput according to the round trip time of each path,and distribute the transmission task to all paths based on the state of each path.Simulation results show that the proposed data scheduling mechanism can effectively mitigate the receiver buffer blocking problem in a bandwidth asymmetric networks environment.

关 键 词：多路并行传输 数据调度 接收缓存阻塞 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]