Mobisense testbed: merging user perception and network performance
Pablo Vidales,Frank Steuer,Niklas Kirschnick,Marcel Wältermann,Blazej Lewcio,Sebastian Möller +5 more
- pp 21
TLDR
A testbed specially built to investigate the user perception of mobility in NGNs, using the Mobisense setting, which allows the migration of VoIP calls across heterogeneous wireless networks, and simulation of user mobility patterns while roaming between networks.Abstract:
The convergence of different commercial wireless technologies poses new opportunities for always-on connectivity and nearly ubiquitous access in Next Generation Networks (NGNs) The proposed integrated virtual access platform frees users from the fixed locations, and allows them to enjoy services while they are on the move However, the possibility to seamlessly roam (on demand) across wireless technologies is a must in NGNs Even though a wide body of research has been done on seamless mobility, a thorough analysis of user perception of this phenomenon is required in order to successfully design, and further improve, always-on services and mobility management solutions This paper describes a testbed specially built to investigate the user perception of mobility in NGNs The Mobisense testbed enables the mapping of user experience to network conditions, focusing on phenomena caused by a user roaming across diverse wireless technologies and the impact on applications and services The Mobisense setting helps in the analysis of IP services, in particular experiments were done to study user perceived quality of Voice over IP in NGNs This testbed allows (1) the migration of VoIP calls across heterogeneous wireless networks, (2) network application data tracking, (3) simulation of user mobility patterns, (4) and audio codec changeovers while roaming between networksread more
Citations
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Proceedings ArticleDOI
Video quality in next generation mobile networks — Perception of time-varying transmission
TL;DR: This paper could identify the perceptual bottlenecks of the future wireless communication and are able to propose perceptual guidelines for mobility management and contributes to the service quality improvement of future wireless communications.
Proceedings ArticleDOI
Speech Quality While Roaming in Next Generation Networks
TL;DR: The results show when and under which circumstances a network handover and/or codec changeover should be scheduled in order to obtain better speech quality, important for the development of high-quality roaming strategies.
Proceedings ArticleDOI
Understanding Cross-Layer Effects on Quality of Experience for Video over NGMN
TL;DR: This evaluation compares the Quality of Experience (QoE) for HTTP streaming in a prototype NGMN testbed with WiFi and 3G UMTS/HSDPA support and complements the QoE estimations with network QoS parameters such as throughput and delay, and transport layer statistics.
Proceedings ArticleDOI
E-model supported switching between narrowband and wideband speech quality
TL;DR: An additive codec switching impairment factor Iesw is proposed that improves the E-Model estimation for the new quality phenomenon, and enables VoIP quality monitoring of dynamic VoIPquality profiles, which is required to provide maximal user satisfaction in NGNs.
Proceedings ArticleDOI
A systematic review of usability test metrics for mobile video streaming apps
TL;DR: The study reveals that time taken for video streaming and the video quality were the two most popular metrics used in the usability tests for mobile video streaming apps.
References
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IP Mobility Support for IPv4
TL;DR: This document specifies protocol enhancements that allow transparent routing of IP datagrams to mobile nodes in the Internet.
Journal ArticleDOI
PlanetLab: an overlay testbed for broad-coverage services
Brent N. Chun,David E. Culler,Timothy Roscoe,Andy Bavier,Larry L. Peterson,Mike Wawrzoniak,Mic Bowman +6 more
TL;DR: This paper discribes the initial implementation of PlanetLab, including the mechanisms used to impelment virtualization, and the collection of core services used to manage PlanetLab.
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TL;DR: This document describes the Network Time Protocol (NTP), specifies its formal structure and summarizes information useful for its implementation and describes the methods used for their implementation.