Since traditional TCP timer is fundamentally inappropriate for ad hoc network with random abrupt round-trip time(RTT),a new TCP timing scheme based on rtt_active timer was proposed.
针对传统的TCP定时器不适用于具有动态随机变化往返时间的ad hoc网络,提出了一种基于rtt_active定时器的新的TCP定时方案。
Previous tests use round-trip delay to avoid the synchronization problem,but the jitter error can not be neglected.
时间同步是测试中的一个难点,现有的测试方法大多都是测试往返时延,以避开时间同步,但得到的抖动误差很大,所以对单向时延的精确测量是获取网络抖动的前提。
Commited information rate(CIR),round trip time(RTT) and retransmission timeout(RTO),can bias bandwidth assurance.
往返时间(RTT)、目标速度(CIR)以及重传超时(RTO)等因素导致了带宽分配的不均匀。
This paper presents two new mechanisms to improve the performance of wireless TCP,they are:the scheme of adjusting TCP s segment size based on retransmission ratio and the scheme of setting Round Trip Time (RTT) threshold based on estimated throughput.
本文提出了两种无线TCP改进机制 ,即 :基于重传率调整TCP段尺寸的机制和基于吞吐量估计设置往返时间 (RTT)门限检测网络拥塞的机制 。
