The influence of delay on cloud gaming quality of experience / Saeed Shafiee Sabet.

Format:

Book

Author/Creator:

Sabet, Saeed Shafiee, author.

Series:

T-Labs Series in Telecommunication Services

Language:

English

Subjects (All):

Cloud computing.

Video games.

Physical Description:

1 online resource (166 pages)

Place of Publication:

Cham, Switzerland : Springer, [2022]

Summary:

This book provides an understanding of the impact of delay on cloud gaming Quality of Experience (QoE) and proposes techniques to compensate for this impact, leading to a better gaming experience when there are network delays. The author studies why some games in the cloud are more delay sensitive than others by identifying game characteristics influencing a user's delay perception and predicting the gaming QoE degraded by the delay. The author also investigates the impact of jitter and serial-position effects on gaming QoE and delay. Using the insight gained, the author presents delay compensation techniques that can mitigate the negative influence of delay on gaming QoE that use the game characteristics to adapt the games.

Contents:

Intro

Preface

Acknowledgments

Contents

About the Author

Acronyms

1 Introduction

1.1 Motivation

1.2 Research Question and Scope

1.3 Structure of the Book

2 Gaming QoE Assessment

2.1 Introduction

2.2 Cloud Gaming

2.3 Concept of QoE

2.4 Gaming Taxonomy

2.5 Gaming QoE Influencing Factors

2.5.1 Human Factors

2.5.2 Context Factors

2.5.3 System Factors

Media-Related System Influencing Factors

Playing Devices

Network

Game

2.6 Quality Features

2.6.1 Game-Related Aspects

Interaction Quality

Playing Quality

Appeal

2.6.2 Player Experience Aspects

2.7 Methods for Assessing Gaming QoE

2.7.1 Questionnaire

2.7.2 Experimental Setup of Laboratory Environment

2.7.3 Experimenting Using Crowdsourcing Platform

Rating Platform

Crowd Gaming Framework

2.8 Summary

3 Influence of Delay on Gaming QoE

3.1 Introduction

3.2 Interactive Dataset of ITU-T Rec. G.1072

3.2.1 Data Analyses

3.3 Game Characteristics Influencing Delay Sensitivity of Games

3.3.1 Focus Group Study (Study 3.1)

Demographics of Participants

Experiment Details

Identified Characteristics

3.3.2 Definition and Categorization of the Characteristics

Temporal Accuracy (TA)

Spatial Accuracy (SA)

Predictability (PR)

Number of Input Directions (NID)

Consequences (CQ)

Importance of Actions (IoA)

Number of Required Actions (NRA)

Feedback Frequency (FF)

Type of Input (ToI)

3.3.3 Quantification of the Game Characteristics (Study 3.2)

Data Analysis

3.3.4 Characteristics Grouping

3.3.5 Discussion

3.4 Delay Sensitivity Classification

3.4.1 Dataset Details

Crowdsourcing Game Dataset (CSGDS)

3.4.2 Decision Tree

3.4.3 Performance of the Classification

3.4.4 Discussion

3.5 User Strategy and User Inputs (Study 3.3).

3.5.1 Experiment Details

3.5.2 Influence of Player Strategies on Delay Perception

3.5.3 Influence of Player Strategies on User Input Characteristics

3.5.4 IQ and Gaming QoE

3.5.5 Discussion

3.6 Predicting the Influence of Delay on IQ

3.7 Impact of Performance and Delay on Gaming QoE (Study 3.4)

3.7.1 Experiment Details

3.7.2 Demographic Information of the Test Participants

3.7.3 Influence of Performance on Gaming QoE

3.7.4 Relationship Between Delay, Performance, and QoE

3.7.5 Discussion

3.8 Summary

4 Influence of Time-Varying Delay on Gaming QoE

4.1 Introduction

4.2 Influence of Jitter on Gaming QoE (Study 4.1)

4.2.1 Experiment Details

4.2.2 Data Analysis

4.2.3 Comparison of Crowdsourcing and Laboratory Study (Study 4.2)

4.2.4 Discussion

4.3 The Serial-Position Effects of Delay on Gaming QoE

4.3.1 Experiment Details

4.3.2 Data Analysis

4.3.3 Discussion

4.4 Impact of Gamers' Adaptation to Delay on Gaming QoE

4.4.1 Experiment Details (Study 4.3)

4.4.2 Data Analysis

Correlation Between Subjective and Objective Performance

Impact of User Adaptability to Delay on User Performance

Impact of User Adaptability to Delay on Gaming QoE

4.4.3 Discussion

4.5 Summary

5 Delay Compensation Technique

5.1 Introduction

5.2 Overview of Delay Compensation Techniques

5.2.1 Delay Compensation on Online Gaming

5.2.2 Delay Compensation on Cloud Gaming

5.3 Proposed Technique (Study 5.1)

5.3.1 Experiment Details

5.3.2 Adaptation by Reducing the Spatial Accuracy

5.3.3 Adaptation by Reducing the Temporal Accuracy

5.3.4 Adaptation Using Both Temporal and Spatial Accuracy

5.3.5 Discussion

5.4 Extension of the Proposed Delay Compensation Technique (Study 5.2)

5.4.1 Experiment Details

Demographic Information of the Test Participants.

5.4.2 Evaluation and Results

Adaptation Using Spatial Accuracy

Adaptation Using Temporal Accuracy

Adaptation Using Predictability

Adaptation Using Number of Required Actions

Adaptation Using Consequences

Visible and Invisible Adaptation

5.4.3 Discussion

5.5 Delay Compensation Techniques on the Variation of Delay

5.5.1 Game Adaptation Technique in Jitter

5.5.2 De-Jitter Buffering and the Adaptation

5.5.3 Dynamic Adaptation and Invisible Adaptation

5.6 Discussion and Summary

6 Conclusion and Outlook

6.1 Summary

6.2 Answers to Research Questions

6.2.1 Research Question 1

RQ1.1: What Are the Game Characteristics Influencing the Delay Sensitivity of Cloud Games?

RQ1.2: Can Games be Classified Regarding Their Delay Sensitivity Based on Expert Judgement?

RQ1.3: Can the Delay Sensitivity Classification Improve Gaming QoE Prediction?

6.2.2 Research Question 2

RQ2.1: What Is the Impact of Jitter on Gaming QoE?

RQ2.2: What Is the Impact of Serial-Position Effects on Gaming QoE?

RQ2.3: What Is the Impact of Frequent Delay Variation on Gaming QoE?

6.2.3 Research Question 3

RQ3.1: Can Adaptation Technique Compensate for the Influence of Delay?

RQ3.2: Can Adaptation Technique Compensate for the Influence of Delay Variation?

6.3 Contributions of the Book

6.4 Limitations

6.5 Future Work

A Additional Material Related to Subjective Experiments

B Snapshot of the Game Used in CSGDS

C Questionnaire Used for Expert Judgment

References

Index.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

Other Format:

Print version: Sabet, Saeed Shafiee The Influence of Delay on Cloud Gaming Quality of Experience

ISBN:

9783030998691