Linking Users' Subjective QoE Evaluation to Signal Strength in an IEEE 802.11b/g Wireless LAN Environment

Although the literature on Quality of Experience (QoE) has boomed over the last few years, only a limited number of studies have focused on the relation between objective technical parameters and subjective user-centric indicators of QoE. Building on an overview of the related literature, this paper introduces the use of a software monitoring tool as part of an interdisciplinary approach to QoE measurement. In the presented study, a panel of test users evaluated a mobile web-browsing application (i.e., Wapedia) on a PDA in an IEEE 802.11b/g Wireless LAN environment by rating a number of key QoE dimensions on the device immediately after usage. This subjective evaluation was linked to the signal strength, monitored during PDA usage at four different locations in the test environment. The aim of this study is to assess and model the relation between the subjective evaluation of QoE and the (objective) signal strength in order to achieve future QoE optimization.

[1]  Pablo Belzarena,et al.  End-2-End Evaluation of IP Multimedia Services , a User Perceived Quality of Service Approach , 2008 .

[2]  Andreas Rossholm,et al.  A new low complex reference free video quality predictor , 2008, 2008 IEEE 10th Workshop on Multimedia Signal Processing.

[3]  Abdulhussain E. Mahdi,et al.  Advances in voice quality measurement in modern telecommunications , 2009, Digit. Signal Process..

[4]  Assuring QoE on Next Generation Networks , 2001 .

[5]  Luc Martens,et al.  A software tool to relate technical performance to user experience in a mobile context , 2008, 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks.

[6]  John Woods,et al.  QoS arbitration for improving the QoE in multimedia transmission , 2003 .

[7]  Luc Martens,et al.  Evaluation of Link Performance of an Indoor 802.11g Network , 2008, 2008 5th IEEE Consumer Communications and Networking Conference.

[8]  Leo Breiman,et al.  Classification and Regression Trees , 1984 .

[9]  Markus Fiedler,et al.  Testing the IQX Hypothesis for Exponential Interdependency between QoS and QoE of Voice Codecs iLBC and G.711 , 2008 .

[10]  R. E. Kooij,et al.  Of MOS and men: bridging the gap between objective and subjective quality measurements in mobile TV , 2007, Electronic Imaging.

[11]  David Soldani.  Means and methods for collecting and analyzing QoE measurements in wireless networks , 2006, 2006 International Symposium on a World of Wireless, Mobile and Multimedia Networks(WoWMoM'06).

[12]  N. McNamara,et al.  Defining usability: quality of use or quality of experience? , 2005, IPCC 2005. Proceedings. International Professional Communication Conference, 2005..

[13]  Yvonne Rogers,et al.  Why It's Worth the Hassle: The Value of In-Situ Studies When Designing Ubicomp , 2007, UbiComp.

[14]  Lieven De Marez,et al.  The Challenge of User- and QoE-Centric Research and Product Development in Today's ICT-Environment , 1970 .

[15]  Kalevi Kilkki,et al.  Quality of Experience in Communications Ecosystem , 2008, J. Univers. Comput. Sci..

[16]  O. Bradeanu,et al.  Mobile Multimedia End-User Quality of Experience Modeling , 2006, International Conference on Digital Telecommunications (ICDT'06).

[17]  Virpi Roto,et al.  Web browsing on mobile phones : characteristics of user experience ; Internet-selailu kännykällä - käyttäjäkokemuksen piirteitä , 2009 .

[18]  James A. Landay,et al.  Conducting In Situ Evaluations for and With Ubiquitous Computing Technologies , 2007 .

[19]  M. Angela Sasse,et al.  Measuring perceived quality of speech and video in multimedia conferencing applications , 1998, MULTIMEDIA '98.

[20]  Michael H. Kutner.  Applied Linear Statistical Models , 1974 .

[21]  Wei-Yin Loh,et al.  Classification and regression trees , 2011, WIREs Data Mining Knowl. Discov..

[22]  Ian Burnett,et al.  Universal multimedia experiences for tomorrow , 2003 .

[23]  Liu Li-yuan,et al.  The Research of Quality of Experience Evaluation Method in Pervasive Computing Environment , 2006, 2006 First International Symposium on Pervasive Computing and Applications.

[24]  A. Perkis,et al.  A model for measuring Quality of Experience , 2006, Proceedings of the 7th Nordic Signal Processing Symposium - NORSIG 2006.

[25]  A.E. Mahdi.  Voice Quality Measurement in Modern Telecommunication Networks , 2007, 2007 14th International Workshop on Systems, Signals and Image Processing and 6th EURASIP Conference focused on Speech and Image Processing, Multimedia Communications and Services.

[26]  Luc Martens,et al.  Bringing troubled water: quality of experience in a mobile media context , 2008 .

[27]  Sasitharan Balasubramaniam,et al.  Creating a distributed mobile networking testbed environment-through the Living Labs approach , 2006, 2nd International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities, 2006. TRIDENTCOM 2006..

[28]  Jin Cao,et al.  Measuring Human Satisfaction in Data Networks , 2006, Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications.