Error analysis of an estimation method using RTT for available bandwidth of a bottleneck link

The Internet real-time applications grow rapidly. Available bandwidth estimation methods by the end host have been studied such as Pathload[l] and pathChirp[2]. These methods parameterize probe packets volume and observe the delay variation to estimate available bandwidth. In these methods, probe packets give heavy overhead loads on the network. The authors proposed a new available bandwidth estimation method based on RTT [3]. The estimation errors consist of sampling errors and errors caused by the probe packets size for our proposed method. In this paper, the sampling errors are analyzed by using inferential statistics. The errors caused by the probe packets size are also analyzed.