Quality of Experience-related differential equations and provisioning-delivery hysteresis

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Markus Fiedler, Tobias Hossfeld
Title: Quality of Experience-related differential equations and provisioning-delivery hysteresis
Conference name: 21st ITC Specialist Seminar on Multimedia Applications - Traffic, Performance and QoE
Year: 2010
Pagination: 19-24
ISBN: 978-4-88552-248-2
Publisher: IEICE
City: Myazaki, Japan
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
Authors e-mail: markus.fiedler@bth.se
Language: English
Abstract: Churn of revenue-generating and dissatisfied
users has become a major point of concern for service
providers and network operators. As services rely on interconnecting networks, service performance and thus user satisfaction depend on network performance. Consequently, it is of utmost importance to understand the relationships between user perception, captured by quantitative Quality of Experience (QoE) parameters, and network performance, described by Quality of Service (QoS) parameters. This paper provides insights into fundamental relationships between QoE and QoS, formulated as partial differential equations describing changes in QoE with respect to specific QoS parameters. A set of illustrating examples from the literature is given. Furthermore, the different impacts of provisioning and degree of success or failure of delivery on QoE are discussed, leading to the QoE provisioning-delivery hysteresis.
This hysteresis provides a striking motivation for employing
elastic adaptation mechanisms to available resources instead of suffering from uncontrolled data loss.
Subject: Telecommunications\General
Computer Science\Networks and Communications
Keywords: Quality of Experience, Quality of Service, differential equation, provisioning, loss, response time
Note: The workshop proceedings are found at: http://www.ieice.org/proceedings/ITC-SS21/ITC-SS21-Proceedings.pdf