移动互联网TCP性能精细化评估方法研究  

Refined Evaluation Method of TCP Performance in Mobile Network

作　　者：向程超[1] 雒江涛[1] 罗鹏[1] 

机构地区：[1]重庆邮电大学通信网与测试技术重点实验室,重庆400065

出　　处：《电视技术》2014年第9期111-115,共5页Video Engineering

基　　金：国家科技重大专项子课题(2012ZX03005002-005);重庆高校优秀成果转化资助项目

摘　　要：移动网络中数据传输流量与速率与日俱增,如何评估数据业务传输过程中TCP的性能成为运营商研究的重点。主要提出了一种TCP性能评估的方法,该方法除了对于TCP连接过程中的连接时延,数据包重传问题进行了统计以外,还对TCP的实时统计速率进行了相应的算法改进,即符合移动互联网用户数据流量使用规律的统计方法,其最大的特点在于消除静默时间内均化速率造成的不准确性。此外,在移动网络实验环境下对本评估方法进行测试,对比了传统的整体化性能评估方法,精细化的评估方法在牺牲一定内存消耗的条件下,提升了TCP性能统计的精确性。Nowadays, the total number of data transmission traffic turns to be larger, so how to evaluate the TCP performance in mobile networks be- comes one of the key points in network study. In this paper, a refined evaluation method on TCP performance in mobile networks is presented. The new method covers the statistics of connection and retransmission packet data, it also evaluates the TCP performance in its typical three stages with smaller time granularity. The process of this evaluation method is illustrated in the following parts. The method is tested in EV-DO testbed, and the results show that the proposed method makes it possible to obtain more accurate analysis results than traditional methods at the cost of memory usage.

关 键 词：移动互联网 传输控制协议(TCP) 性能监测 精细评估 

分 类 号：TN949.23[电子电信—信号与信息处理]