Congestion Control Without a Startup Phase
Source: Case Western Reserve University
The traditional TCP congestion control scheme often yields limited performance due to its conservative Slow Start algorithm, which can require many round-trip times to reach an appropriate sending rate that well utilizes the available capacity. A number of techniques in the literature address this issue, but the authors offer a different approach that is simple yet blunt: allow TCPs to begin transmission at whatever rate they deem appropriate. They term this technique "Jump Start". While Jump Start simply removes the traditional startup phase, the remainder of TCP's congestion control algorithms (additive-increase/multiplicative-decrease and timeout mechanism) remain intact.