异构无线网络的可靠传输方法

A Reliable Transmission Method for Heterogeneous Wireless Networks

针对目前常用的应用层文件可靠传输方法无法满足异构无线网络中文件可靠传输需求的问题,提出一种适应异构无线网络文件可靠传输的软件架构。该软件架构包含业务感知、网络感知和传输控制,其中传输控制是该软件架构核心。传输控制通过优先级调度、拥塞控制、可靠传输、断点续传等策略,对不同业务属性的业务作出全面、精准的管控与控制决策,使得不同业务能通过适合其业务特性的传输处理方式进行处理,提高网络整体利用率,在网络丢包率达到10%的无线网络,传输相同大小的文件,传输时间最多为通用应用层传输协议的50%,极大提升用户体验。

To address the limitations of existing application-layer file reliable transmission methods in heterogeneous wireless networks,this paper introduces a software architecture for reliable file transmission tailored to heterogeneous wireless environments.This architecture integrates business awareness,network awareness,and transmission control,with the transmission control module serving as its cornerstone.Implementing strategies such as priority scheduling,congestion control,reliable transmission,and resuming from breakpoints,the transmission control module meticulously manages and regulates various business attributes,ensuring that different types of services are processed in a manner suited to their characteristics,thus enhancing the overall network utilization.In wireless network conditions with packet loss rates up to 10%,the proposed architecture significantly reduces the file transmission time to half that of standard application-layer protocols,substantially improving user experience.