User-Assisted QoS Control for QoE Enhancement in Audiovisual and Haptic Interactive IP Communications

Toshiro NUNOME
Suguru KAEDE

IEICE TRANSACTIONS on Communications   Vol.E103-B    No.10    pp.1107-1116
Publication Date: 2020/10/01
Publicized: 2020/04/21
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2019EBP3235
Type of Manuscript: PAPER
Category: Network
audiovisual and haptic communications,  QoE,  user attribute,  user behavior,  task,  

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In this paper, we propose a user-assisted QoS control scheme that utilizes media adaptive buffering to enhance QoE of audiovisual and haptic IP communications. The scheme consists of two modes: a manual mode and an automatic mode. It enables users to switch between these two modes according to their inclinations. We compare four QoS control schemes: the manual mode only, the automatic mode only, the switching scheme starting with the manual mode, and the switching scheme starting with the automatic mode. We assess the effects of the four schemes, user attributes, and tasks on QoE through a subjective experiment which provides information on users' behavior in addition to QoE scores. As a result of the experiment, we show that the user-assisted QoS control scheme can enhance QoE. Furthermore, we notice that the proper QoS control scheme depends on user attributes and tasks.