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Towards QoE-aware mobile infrastructures: QoE-based Resource Management in Mobile Networks
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Mobile Service Laboratory (MS Lab).ORCID iD: 0000-0001-8203-8456
2014 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

With the development of mobile networks, customer needs and behaviourshave changed. Mobile communications means so much more than simplevoice communication; there is now mobile Internet with web surfing, videophone,streaming media, and micro blogging. The objective of network optimizationhas gradually shifted from enhancing network performance to improvequality of experience (QoE). Therefore, assessing and optimizing QoEis the trend for optimizing future mobile networks.

Today, users want reliable access for their content, wherever they go inthe network. To deliver the best possible experience to mobile broadbandsubscribers, operators need new ways to assess performance that will enablethem to build and manage their networks in the most efficient way. The newparadigmatic eco system (user-interface-network-content) requires novel anddisruptive end-to-end considerations in order to enable and sustain the nextgeneration of services and user experience. Thus, the extraordinary adoptionof mobile connectivity by end users, and the need for optimized bandwidthmanagement network resource, on the one hand, and the growing interest forgood quality content delivery/consumption, is boosting the creation of newnetwork solutions.

We consider that by taking advantage of the capacity to support multimedia platforms and applications of mobile devices (e.g. smartphones, tablets,etc.) is possible to incorporate and provide awareness to the wireless infrastructuresin the context of cross-layer systems to manage the resource allocationaccording to expected QoE levels. In this thesis, we address the questionon how to implement QoE-aware mobile networks and evaluate differentschedulers oriented to take advantage of the proposed architecture. We showthat by providing QoE-awareness to the network infrastructure is possible toimprove user’s QoE and generate impacts in the utilization of the networkresources. With this study, we provide insights into the broader question ofwhether future mobile infrastructures can be deployed considering QoE besidesthe classical QoS considerations.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. , vii, 58 p.
Series
TRITA-ICT-COS, ISSN 1653-6347 ; 14:07
Keyword [en]
Quality of Experience, Radio Resource management, Mobile Networks
National Category
Communication Systems
Research subject
Information and Communication Technology
Identifiers
URN: urn:nbn:se:kth:diva-145213OAI: oai:DiVA.org:kth-145213DiVA: diva2:717277
Presentation
2014-06-10, Open area, ICT Labs, Elektrum 229, Isafjordsgatan 26, Kista, 14:00 (English)
Opponent
Supervisors
Note

QC 20140521

Available from: 2014-05-21 Created: 2014-05-14 Last updated: 2014-05-21Bibliographically approved
List of papers
1. Quality of Experience and Human-computer Interaction: A Relation Overview
Open this publication in new window or tab >>Quality of Experience and Human-computer Interaction: A Relation Overview
2013 (English)In: MOBILITY 2013: Proceedings of the Third International Conference on Mobile Services, Resources, and Users, 2013, 34-40 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper first traces the historic evolution of the Quality of Experience (QoE) concept, and then connects common points between the study of user experience as practiced within Human Computer Interaction (HCI) disciplines and recent efforts to understand how user perception can be incorporated into the definition and management of resources in the area of (ICT). After an analysis of the history of QoE and an examination of its current role in HCI, some research challenges are proposed that open doors to future research projects.

Keyword
Quality of Experience; Human Computer Interaction; Challenges in mobile environments
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-138335 (URN)978-1-61208-313-1 (ISBN)
Conference
MOBILITY 2013, Third International Conference on Mobile Services, Resources, and Users
Note

QC 20140121

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2014-05-21Bibliographically approved
2. Towards a Novel Resource Management Scheme in Wireless Networks based on Quality of Experience (QoE)
Open this publication in new window or tab >>Towards a Novel Resource Management Scheme in Wireless Networks based on Quality of Experience (QoE)
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper summarizes some of the initial research findings obtained in the SERMON project, funded by Wireless@KTH. The main focus of this paper is on video streaming transmission and the quantification of how much can be gained, in terms of user satisfaction and network resource utilization, by exploiting this semantic knowledge at network level. For this purpose, different QoE-centric RRM strategies are proposed and their performances evaluated in respect to a “classical” agnostic scheme, in a scenario where users have different QoE requirements for different content types and as a function of the device screen resolution during a live video streaming transmission.

National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-145218 (URN)
Conference
10th Scandinavian Workshop on Wireless Ad-hoc Networks (ADHOC ´11),Johannesberg Castle, May 10-11 2011, Stockholm
Note

QC 20140519

Available from: 2014-05-14 Created: 2014-05-14 Last updated: 2014-05-21Bibliographically approved
3. Impact of semantic-aware radio resource management schemes on video streaming service
Open this publication in new window or tab >>Impact of semantic-aware radio resource management schemes on video streaming service
2012 (English)In: Wireless and Mobile Computing, Networking and Communications (WiMob), 2012 IEEE 8th International Conference on, IEEE , 2012, 831-836 p.Conference paper, Published paper (Refereed)
Abstract [en]

Current wireless networks have no knowledge on the type and characteristics of the specific mobile services and contents they are providing (they are agnostic). On the other hand, associated to richer content and more advanced devices, improvement of Quality of Experience (QoE) levels perceived by each user looks as one of the main goals of the different actors in the telecommunication's ecosystem. In this respect, network awareness of the transferred content types and their quality requirements can be important to deliver them fulfilling user requirements while optimizing the utilization of network resources. In this paper, we explore the effect of including semantic knowledge in the radio resource management (RRM) schemes of cellular systems as a way to reach this balance for video streaming service. To make this possible, we propose a number of semantic-aware RRM schemes using information about the video playback's current status, and investigate their performances based on the reduction of the total time of interruptions (TTI) perceived by users when a video streaming content is played. The achieved results are compared to those of the standard agnostic scheme implemented in the cellular networks. The outcomes show that incorporating semantic-aware RRM schemes, more users can receive the content provided by a network within a tolerable level of TTI, while the number of users receiving High Definition (HD) videos can be increased, which in general terms might reduce the investment in infrastructure to fulfill users' requirements.

Place, publisher, year, edition, pages
IEEE, 2012
Series
International Conference on Wireless and Mobile Computing, Networking and Communications, ISSN 2161-9646
Keyword
Quality of Experience, Radio Resource Management, resource allocation
National Category
Communication Systems
Identifiers
urn:nbn:se:kth:diva-116825 (URN)10.1109/WiMOB.2012.6379172 (DOI)2-s2.0-84872075078 (Scopus ID)978-146731430-5 (ISBN)
Conference
2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012, 8 October 2012 through 10 October 2012, Barcelona
Note

QC 20130129

Available from: 2013-01-29 Created: 2013-01-28 Last updated: 2014-05-21Bibliographically approved
4. Towards a Semantic-aware Radio Resource Management
Open this publication in new window or tab >>Towards a Semantic-aware Radio Resource Management
2013 (English)In: MOBILITY 2013, The Third International Conference on Mobile Services, Resources, and Users: Proceedings of The Third International Conference on Mobile Services, Resources, and Users, 2013, 16-19 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper semantic-aware model for radio resource management in wireless networks is introduced and studied through simulation. By semantic-awareness, the network can selectively manage the radio resource allocation based on the evaluation of transferred content, and its associated processing, and prioritize users that are close to experience interruptions, in order to improve the wireless resource utilization and the user’s Quality of Experience (QoE). Different radio resource management (RRM) strategies are proposed and investigated, considering buffer capacity at the terminals and the experience of the users in time while watching a video and waiting for resource allocation. The simulation results show that the users can reduce the total duration, frequency and length of the interruptions during a playback by applying semantic-awareness in the radio resource allocation, which might affect positively user’s QoE.

Keyword
Radio Resource Management; resource allocation
National Category
Communication Systems Telecommunications
Research subject
SRA - ICT
Identifiers
urn:nbn:se:kth:diva-138336 (URN)978-1-61208-313-1 (ISBN)
Conference
MOBILITY 2013, The Third International Conference on Mobile Services, Resources, and Users
Note

QC 20140121

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2014-05-21Bibliographically approved
5. Quality of Experience-aware Resource Management for Mobile Video Streaming
Open this publication in new window or tab >>Quality of Experience-aware Resource Management for Mobile Video Streaming
(English)Manuscript (preprint) (Other academic)
Abstract [en]

In this paper, we present a novel experimental approach to quantify the performances of Quality of Experience (QoE)-aware resource management scheme in mobile networks. The main goal of this paper is to improve network efficiency by exploiting in the resource management the knowledge of QoE information associated with online video streaming services. The investigations considered in the paper are performed using an innovative test-bed, developed to assess network efficiency, as well as the impact on the energy consumption at mobile terminal (MT), for the provision of online video services of different qualities. The QoE model used in the proposed QoE-aware allocation scheme assumes a MOS-like grading function whose grades depend on both the duration of playtime interruption and the video quality (resolution). The results show that the proposed resource management scheme can deliver more than 40 percent higher QoE and energy saving at mobile terminal between 12% to 15% to the users of the system as compared to current agnostic (not aware of QoE requirement and content characteristics) service models.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering Communication Systems
Identifiers
urn:nbn:se:kth:diva-145221 (URN)
Note

QS 2014

Available from: 2014-05-14 Created: 2014-05-14 Last updated: 2014-05-21Bibliographically approved

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Martinez Ballesteros, Luis Guillermo

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