J A N T O S K O W R O N E K
QUALITY OF EXPERIENCE OF
M U LT I PA R T Y C O N F E R E N C I N G
AND TELEMEETING SYSTEMS
METHODS AND MODELS FOR
ASSESSMENT AND PREDICTION
T E C H N I S C H E U N I V E R S I TÄT B E R L I N
Quality of Experience of Multiparty
Conferencing and Telemeeting Systems
Methods and Models for
Assessment and Prediction
vorgelegt von
Dipl.-Ing.
Janto Skowronek
geb. in Herdecke
von der Fakultät IV - Elektrotechnik und Informatik
der Technischen Universität Berlin
zur Erlangung des akademischen Grades
Doktor der Ingenieurwissenschaften
— Dr.-Ing. —
genehmigte Dissertation
Promotionsausschuss
Vorsitzender: Prof. Dr. Jean-Pierre Seifert
Gutachter: Prof. Dr.-Ing. Alexander Raake
Gutachter: Prof. Dr.-Ing. Sebastian Möller
Gutachter: Prof. Patrick Le Callet
Tag der wissenschaftlichen Aussprache: 09. Dezember 2016
Berlin 2017
Brief Contents
Preface 11
Zusammenfassung 13
Summary 15
I General Introduction 17
1General Introduction 18
II Background 26
2Human Communication via Telemeetings 27
3Telemeeting Technologies 51
4Quality Assessment in Telecommunication 73
III Contribution 88
5Conceptual Model of Telemeeting Quality 89
6Methodology for the Perceptual Assessment of Telemeeting Quality 120
7Perception of Telemeeting Quality with focus on Group-Communication Aspects 153
8Perception of Telemeeting Quality with focus on Telecommunication Aspects 204
9Perceptual Models of Telemeeting Quality 256
IV Summary and Conclusions 290
10 Summary and Conclusions 291
V Appendices 300
A Overview of Conducted Studies and Documents that Contributed to this Thesis 301
B Detailed Results: Deep Dive Analysis of Research on Group-Communication 305
4
C Detailed Results: Study on Impact of Communication Complexity 329
D Detailed Results: Study on Impact of Involvement 353
E Detailed Results: Study on Impact of Audio-Only Telemeeting - Conversation Tests 363
F Detailed Results: Study on Impact of Audio-Only Telemeeting - Listening-Only Tests 371
G Detailed Results: Study on Impact of Audiovisual Telemeeting - Conversation Tests 380
H Detailed Results: Model Performance 389
Bibliography 442
Detailed Contents
Preface 11
Zusammenfassung 13
Summary 15
I General Introduction 17
1General Introduction 18
Whatthischapterisabout.......................................... 18
1.1Motivation, Problem Statement, and Main Research Goal . . . . . . . . . . . . . . . . . . . . . 18
1.2ResearchScenario............................................ 19
1.3ResearchObjectives........................................... 22
1.4ResearchMethod ............................................ 23
II Background 26
2Human Communication via Telemeetings 27
Whatthischapterisabout.......................................... 27
2.1Introduction............................................... 27
2.2A Characterization of Group-Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.1Group-Communication Purposes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.2Group-Communication Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2.3Communication Modes in Group-Communication . . . . . . . . . . . . . . . . . . . . 36
2.2.4Shared-Work-Spaces in Group-Communication . . . . . . . . . . . . . . . . . . . . . . 36
2.3Overview of Research on Face-To-Face and Mediated Group-Communication . . . . . . . . . 38
2.3.1Goals............................................... 38
2.3.2Method.............................................. 38
2.3.3ResultsandRe-Interpretation................................. 38
2.3.4DiscussionandConclusions ................................. 40
2.4Deep-Dive Analysis of Research on Face-To-Face and Mediated Group-Communication . . . 41
2.4.1MotivationandApproach................................... 41
2.4.2Method.............................................. 42
2.4.3Data ............................................... 45
2.4.4Results.............................................. 45
2.4.5DiscussionandConclusions ................................. 47
Summary.................................................... 49
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