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Dive into the research topics where Masataka Masuda is active.

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Featured researches published by Masataka Masuda.


asia pacific network operations and management symposium | 2009

Performance evaluation of VoIP QoE monitoring using RTCP XR

Masataka Masuda; Kodai Yamamoto; Souhei Majima; Takanori Hayashi; Konosuke Kawashima

In next generation networks (NGNs), not only bearer quality management but also quality of experience (QoE) management is needed. One means of QoE monitoring is IETF RFC3611 RTCP XR which is a protocol for reporting the quality information measured at VoIP terminals. In our previous study, we propose a QoE monitoring method of VoIP using the XR. However, XR is not a fully mature technology, and some report parameters are vaguely defined to implement on a VoIP terminal. We focus on the XR parameters of network factors, loss rate, round trip delay, and jitter. We clarified the applicability to QoE monitoring of these XR parameters based on experimental results.


IEICE Transactions on Communications | 2006

Non-intrusive Quality Monitoring Method of VoIP Speech Based on Network Performance Metrics

Masataka Masuda; Takanori Hayashi


IEICE Transactions on Communications | 2014

Performance Comparisons of Subjective Quality Assessment Methods for Video

Toshiko Tominaga; Masataka Masuda; Jun Okamoto; Akira Takahashi; Takanori Hayashi


Archive | 2006

Non-intrusive QoS Monitoring Method for Realtime Telecommunication Services

Takanori Hayashi; Masataka Masuda; Toshiko Tominaga; Kazuhisa Yamagishi


IEICE Transactions on Communications | 2004

Methods of Improving the Accuracy and Reproducibility of Objective Quality Assessment of VoIP Speech

Akira Takahashi; Masataka Masuda; Atsuko Kurashima


IEICE Transactions on Communications | 2007

End-to-end quality management method for VoIP speech using RTCP XR

Masataka Masuda; Tsuyoshi Furukawa; Takanori Hayashi; Souhei Majima


Proceedings of SPIE | 2012

QoE assessment method for mobile video services based on user motivation

Fumiya Kobayashi; Masataka Masuda; Takanori Hayashi


Archive | 2010

User's quality of experience monitoring apparatus and method, and information communication system

Takanori Hayashi; Masataka Masuda; Kazunari Ushiki; 征貴 増田; 孝典 林; 一成 牛木


IEICE Transactions on Communications | 2017

Web-browsing QoE Estimation Model

Toshiko Tominaga; Kanako Sato; Noriko Yoshimura; Masataka Masuda; Hitoshi Aoki; Takanori Hayashi


Technical report of IEICE. CQ | 2014

QoE Estimation Method for Video Streaming Services Considering Loading Time

Toshiko Tominaga; Noriko Yoshimura; Masataka Masuda

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Konosuke Kawashima

Tokyo University of Agriculture and Technology

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