Summary
APNOMS (Asia-Pacific Network Operations and Management Symposium)
2013
Session Number:P1
Session:
Number:P1-15
Error Analysis of An Estimation Method Using RTT for Available Bandwidth of A Bottleneck Link
Masaharu Imai, Takayuki Ozawa, Yoshio Sugizaki, Koichi Asatani,
pp.-
Publication Date:2013/09/25
Online ISSN:2188-5079
Summary:
The Internet real-time applications are growing rapidly, and available bandwidth estimation is required. Available bandwidth estimation methods by end host have been studied e.g. Pathload and pathChirp. 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.We proposed a new available bandwidth estimation method based on frequency of minimum RTT of probe packets in multi hop links. This method estimates bandwidth utilization and available bandwidth of a bottleneck link without severe network loads.
It was clarified that the estimation errors consist of sampling errors and errors caused by the probe packets size for the 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. The validity of the error analysis was confirmed by the experimental results.