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Applying Lomb Periodogram to Round-trip Time Estimation from Unidirectional Packet Traces with Different TCP Congestion Controls

Authors:
Toshihiko Kato
Xiaofan Yan
Ryo Yamamoto
Satoshi Ohzahata

Keywords: Unidirectional Packet trace; Round-trip Time; Lomb Periodogram; Congestion Control.

Abstract:
Network operators often attempt to analyze traffic in the middle of their networks for various purposes. In such traffic analysis, the estimation of Round-Trip Time (RTT) is indispensable. Primarily, the RTT estimation is performed by consulting the relationship between a request and its response, such as a data segment and the associated ACK segment. However, in the middle of Internet, it is common that a network operator monitors traffic only in one direction. In such a case, an operator is required to estimate RTT from unidirectional packet traces. So far, several methods have been proposed for RTT estimation from unidirectional traces. In this paper, we adopt the Lomb periodogram method and apply it to various TCP traces, collected through Ethernet or wireless LAN, with different congestion control algorithms. As a result, the method can estimate RTT roughly, but the results are not accurate enough for subtle analysis, such as congestion window estimation.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2018

Publication date: July 22, 2018

Published in: conference

ISSN: 2308-3980

ISBN: 978-1-61208-652-1

Location: Barcelona, Spain

Dates: from July 22, 2018 to July 26, 2018