一种基于动态阈值的TCP超时重传策略  

Timeout retransmission strategy based on dynamic threshold

作　　者：闫二辉[1] 朱敏[1] 毛明敏[2] 

机构地区：[1]四川大学计算机学院,成都610064 [2]西南石油大学经济管理学院,成都610500

出　　处：《计算机应用研究》2010年第8期3135-3137,共3页Application Research of Computers

摘　　要：针对传统的TCP拥塞控制算法在发生超时后存在恢复时间长、收敛性差、网络抖动剧烈等问题,在超时重传策略的基础上提出一种基于动态阈值的超时重传算法。该算法不仅使得网络拥塞处理更为平滑,同时可显著提高数据传输效率。实验表明,新策略能明显降低网络振荡,提高网络吞吐量,有利于网络资源的利用。When the timeout retransmission occurs,the traditional TCP congestion control algorithm cause some problems, such as long recovery time,poor convergence,severe network vibration. The paper put forward a timeout retransmission strategy based on the dynamic threshold,it avoided network congestion smoothly,and improved the efficiency of the data transmission overall. Experiments show that this new strategy can reduce the vibration of network obviously,improve the output of network and make the network resources more useful.

关 键 词：传输控制协议 拥塞控制 超时重传 网络振荡 动态阈值 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]