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Communicating Quality of Experience data for the development of multimedia services

This article explores the requirements for Quality of Experience (QoE) data in the development of multimedia services. It provides guidelines, tutorials, and links between QoS and QoE variables. The article also discusses how QoE data can be used to provide information about user behavior and improve the reliability, duration, and cost-benefit of communication.

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Communicating Quality of Experience data for the development of multimedia services

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  1. Communicating Quality of Experience data for the development of multimedia services Peter Brooks, Teolys (F) Bjørn Hestnes, Telenor R&D (N) Svein Heiestad, Telenor R&D (N) Carl Aaby, TANDBERG (N)

  2. Real-Time Non Real-Time • Download • Push • TV Anytime • Live streaming • Almost live TV • Multimedia Conf • Videotelephony • Data conferencing • Avatar-telephony • Audio telephony • Real-time text • VoiceMail • VideoMail • E-Mail • Web surfing

  3. Real-Time Person-to-Person Communication • Multimedia • Video • Data • Avatar • Audio • Text

  4. Real-Time Person-to-Person Communication • Multimedia • Video • Data • Avatar • Audio • Text End-to-end components Input-Output devices Input-Output devices Routers Encoders keyboard keyboard Wireless Network Access PANs microphone microphone Tunnels, Firewalls, Encryption ISPs camera camera Decoders • Protocols • TCP-IP • UDP-IP screen screen WANs

  5. Making informed decisions… • Requirements for QoE data • Making QoE data available within industry Based on case studies with • Network operators • Equipment manufacturers • Service providers

  6. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  7. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  8. User choice Reliability of service Duration of call Cost-benefit User appearance Head / Upper body Eye contact Perception of other User groups Business persons Deaf persons Blind persons Purpose of communication Negotiation Problem solving Showing surroundings Group communication Multi-point Window configuration Human support Technical parameters Delay Packet loss Resolution The main topics of concern

  9. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  10. Packet loss Jitter Lip-synchrony / asynchrony Frame-rate / resolution Reliability of service Multi-point social presence Heterogeneous transcoding User communication modes User task types Influence of participant status Configurations for blind persons Configurations for deaf persons Quality of Experience Key concepts & lessons

  11. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  12. Intermediate Guideline Format IF Communication Situation USING Service Prescription WITH Technical Parameters THEN Usage Outcome

  13. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  14. Who would use QoE data? Equipment manufacturer Network operator • Sales • Marketing • Development engineering • Customer support • Technical research • HF research • Strategic network planning • Sales • Marketing • System integration • Network testing • Development engineering • Technical research • HF research Service provider • Service creation • Service host • Service operator • Service support • Sales • System integration • Terminal testing

  15. Abstracting test results Guideline #1 Guideline #2 Guideline #n Guidelines IF ---------- USING ---------- WITH ---------l THEN ---------- IF ---------- USING ---------- WITH ---------l THEN ---------- IF ---------- USING ---------- WITH ---------l THEN ---------- Intermediate Guidelines Base Knowledge Units Test result #1 Test result #2 Test result #n Base knowledge

  16. Requirements for QoE data • Provide guidelines on key topics • Provide tutorials • Link QoS and QoE variables • Provide QoE data for different guideline users • Provide information about user behaviour that is feasible to apply

  17. Example QoE measure IF Communication Situation USING Service Prescription WITH Technical Parameters THEN Usage Outcome • Prevents adequate communication • Is usable • Offers acceptable quality • Offers good quality • Offers very good quality

  18. Making QoE data available within industry ETSI Guide Web-based system

  19. Conclusions • Service developers want end-user data • Much data not available • Tutorial support required • Standardisation bodies well positioned to disseminate QoE data • ETSI STF284 • http://portal.etsi.org/stfs/hf/STF284.asp Please visit the web-based system & provide your feedback!

  20. Communicating Quality of Experience data for the development of multimedia services Peter Brooks, Teolys (F) Bjørn Hestnes, Telenor R&D (N) Svein Heiestad, Telenor R&D (N) Carl Aaby, TANDBERG (N)

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