Network traffic analysis and evaluation of a multi-user virtual environment

Abstract Virtual world applications allow users to interact within a simulated world. Network responsiveness and reliability contribute to the user experience, thus being able to model and reproduce certain network scenarios is a key issue to assure proper user experience and for being able to provide an estimation of the required network resources. The present study aims to model the client network traffic for the virtual world application Open Wonderland as the basis to tools for evaluating its network requirements. A micro scale modelling was performed, studying the outgoing network traffic from a black box approach that omits the details of traffic generation of the subcomponents and focuses on their overall combined traffic. The model obtained provides high goodness of fit for audio and object synchronisation traffic, reflected in a Pearson correlation coefficient close to its maximum value and low deviation figures measured by Root Mean Square Deviation.

[1]  W. Kinzelbach.  Applied groundwater modeling — Simulation of flow and advective transport , 1992 .

[2]  José Luis Sevillano,et al.  Open Source Virtual Worlds and Low Cost Sensors for Physical Rehab of Patients with Chronic Diseases , 2009, eHealth.

[3]  Sheldon M. Ross,et al.  Stochastic Processes , 2018, Gauge Integral Structures for Stochastic Calculus and Quantum Electrodynamics.

[4]  Mark Claypool,et al.  The effect of latency on user performance in Warcraft III , 2003, NetGames '03.

[5]  John C. S. Lui,et al.  Constructing Communication Subgraphs and Deriving an Optimal Synchronization Interval for Distributed Virtual Environment Systems , 2001, IEEE Trans. Knowl. Data Eng..

[6]  Michael S. Borella,et al.  Source models of network game traffic , 2000, Comput. Commun..

[7]  S. J. Devlin,et al.  Robust estimation and outlier detection with correlation coefficients , 1975 .

[8]  Nicole Yankelovich,et al.  Meeting central: making distributed meetings more effective , 2004, CSCW.

[9]  Wu-chi Feng,et al.  Provisioning on-line games: a traffic analysis of a busy counter-strike server , 2002, Comput. Commun. Rev..

[10]  Daniel Cascado,et al.  Virtual worlds to enhance Ambient-Assisted Living , 2010, 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology.

[11]  Grenville J. Armitage,et al.  An experimental estimation of latency sensitivity in multiplayer Quake 3 , 2003, The 11th IEEE International Conference on Networks, 2003. ICON2003..

[12]  Hartmut Ritter,et al.  The effect of latency and network limitations on MMORPGs: a field study of everquest2 , 2005, NetGames '05.

[13]  L. L. Cam,et al.  Maximum likelihood : an introduction , 1990 .

[14]  Tristan Henderson,et al.  Networked games: a QoS-sensitive application for QoS-insensitive users? , 2003, RIPQoS '03.

[15]  Johannes Färber,et al.  Traffic Modelling for Fast Action Network Games , 2004, Multimedia Tools and Applications.

[16]  Mark Claypool,et al.  Network analysis of Counter-strike and Starcraft , 2003, Conference Proceedings of the 2003 IEEE International Performance, Computing, and Communications Conference, 2003..

[17]  Beat Kleiner,et al.  Graphical Methods for Data Analysis , 1983 .

[18]  Luiz A. DaSilva,et al.  Quality of service for networked virtual environments , 2004, IEEE Communications Magazine.

[19]  Grenville Armitage,et al.  Towards a General Model of First Person Shooter Game Traffic , 2005 .

[20]  R. Fisher.  FREQUENCY DISTRIBUTION OF THE VALUES OF THE CORRELATION COEFFIENTS IN SAMPLES FROM AN INDEFINITELY LARGE POPU;ATION , 1915 .

[21]  Sebastian Zander,et al.  A traffic model for the Xbox game Halo 2 , 2005, NOSSDAV '05.

[22]  Grenville Armitage,et al.  A Ns2 model for the Xbox System Link game Halo , 2003 .

[23]  Chris Fowler,et al.  Designing and Building immersive education spaces using Project Wonderland: from pedagogy through to practice , 2009 .

[24]  Behnoosh Hariri,et al.  A Survey of First-Person Shooter Gaming Traffic on the Internet , 2010, IEEE Internet Computing.

[25]  J. Pfanzagl.  Parametric Statistical Theory , 1994 .

[26]  B. J. Fogg,et al.  Persuasive technology: using computers to change what we think and do , 2002, UBIQ.

[27]  Daniel Cascado,et al.  Network requirements evaluation of a multi-user virtual environment , 2011, 2011 International Symposium on Performance Evaluation of Computer & Telecommunication Systems.

[28]  Grenville J. Armitage,et al.  A synthetic traffic model for Quake3 , 2004, ACE '04.

[29]  Wu-chi Feng,et al.  Provisioning on-line games: a traffic analysis of a busy counter-strike server , 2002, CCRV.

[30]  T. Schroer,et al.  Motors, Clutches and Brakes for Membrane Traffic: A Commemorative Review in Honor of Thomas Kreis , 2000, Traffic.

[31]  E. Asensio,et al.  Analyzing the Network Traffic Requirements of Multiplayer Online Games , 2008, 2008 The Second International Conference on Advanced Engineering Computing and Applications in Sciences.

[32]  P ? ? ? ? ? ? ? % ? ? ? ? , 1991 .

[33]  C. Schunn,et al.  Evaluating Goodness-of-Fit in Comparison of Models to Data , 2005 .

[34]  Philip Branch,et al.  ARMA(1,1) modeling of Quake4 Server to client game traffic , 2007, NetGames '07.