摘要
基于自拥塞理论的网络带宽测量技术存在探测流量过大,易拥塞网络等缺点,因而在网络传输中的应用具有一定局限性。针对这些不足,提出一种新的数据传输控制算法ProDTCA。ProDTCA利用数据包单向延迟特性,通过源端定时发送轻量级探测流,估测带宽占用状况,动态的调整数据发送速率。仿真结果表明ProDTCA可以快速的调整数据发送速率,避免网络拥塞,防止数据包丢失,达到对网络带宽的高效利用。与传统基于自拥塞理论的带宽测量方法相比,ProDTCA能够自适应的调整数据发送速率,有很高的工程应用价值。
It is very inconvenient to put network bandwidth measure technique into real-time circumstance due to the high volume of probing traffic and easiness of network congestion.A new algorithm ProDTCA is presented in this paper.According to the delay of one-way data transmission,light-weight probing package is sent at regular intervals.The load of bandwidth is estimated and the rate of package is adjusted dynamically at the same time.Simulation result shows that several improvements are gained on overall performance.The high efficient use of bandwidth can be achieved by swiftly adjust rate of package.Further more network congestion and package losing are avoided when using ProDTCA.Comparing with traditional self-congestion theory based bandwidth measurement,a scheme of adaptive package sending rate is obtained with ProDTCA.
出处
《微处理机》
2010年第2期52-56,共5页
Microprocessors
关键词
可用带宽
自调整
占用率
自拥塞
Available bandwidth
Dynamic rate-adaptive
Occupancy rate
Self-congestion
