The design of virtual environments
The design of virtual environments
Networked virtual environments: design and implementation
Networked virtual environments: design and implementation
Human Factors Evaluation Techniques to Aid Understanding of Virtual Interfaces
BT Technology Journal
A Taxonomy for Networked Virtual Environments
IEEE MultiMedia
Small Group Behavior Experiments in the Coven Project
IEEE Computer Graphics and Applications
Virtual Reality Transfer Protocol (VRTP) Design Rationale
WET-ICE '97 Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises
User-Centered Design and Evaluation of a Real-Time Battlefield Visualization Virtual Environment
VR '99 Proceedings of the IEEE Virtual Reality
Human Factors Issues in Virtual Environments: A Review of the Literature
Presence: Teleoperators and Virtual Environments
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
A framework for multiuser distributed virtual environments
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
IEEE Spectrum
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As advanced Internet services, networked virtual reality (NVR) applications impose certain quality of service (QoS) requirements, due to rich multimedia content and perceived "real-time" interactivity. Two different representations of QoS are needed at the user/application level and at the communication level, which our approach attempts to relate using as a reference an interconnection model for NVR applications. We present the design and development of a multi-user virtual audio chat application and a performance evaluation based on QoS requirements. Objective and subjective methods for determining QoS have been addressed, and our results analysed for the purpose of possible QoS improvements.