A QoE-driven adaptation scheme for video content delivery in LTE networks

Dimitrios J. Vergados, Yuming Jiang, Aggeliki Sgora, Angelos Michalas, Dimitrios D. Vergados, J.-P. Laulajainen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2 Citations (Scopus)

Abstract

The Long-Term Evolution (LTE) standard is a promising solution to mobile connectivity. It provides high data rates at a relatively low cost. At the same time, video traffic has so far outpaced other traffic types in growth, making it the dominant traffic type in current wireless networks. In this paper we study the concept of Quality of Experience (QoE) for video traffic in LTE systems. Since video users are more annoyed by unpredictable disruptions than overall reduced video fidelity, we developed an adaptive video coding scheme that aims to improve QoE in LTE networks. In the proposed model users of the same quality class are classified into a number of service levels providing different QoE satisfaction thresholds to their members. The QoE driven adaptation scheme adapts the rate of the transmitted video, so that the QoE experienced by the users remains in satisfactory levels. Two different policies for transmission rate adaptation are studied, namely the adaptive and the coordinated approach. The level of the transmission rate for both policies is regulated by the linear slow start and/or the exponential increase. Simulation results showed that the proposed algorithm for the both transmission rate adaptation policies succeeds in minimizing packet loss and delay in the video transmission, by adjusting the video resolution.
Original languageEnglish
Title of host publicationProceedings on CD-ROM ISWCS 2013
Subtitle of host publicationThe Tenth International Symposium on Wireless Communication Systems
PublisherVDE Verlag
Pages773-777
ISBN (Print)978-3-8007-3529-7
Publication statusPublished - 2013
MoE publication typeNot Eligible
EventThe 10th International Symposium on Wireless Communication Systems, ISWCS 2013 - Ilmenau, Germany
Duration: 27 Aug 201330 Aug 2013

Conference

ConferenceThe 10th International Symposium on Wireless Communication Systems, ISWCS 2013
Abbreviated titleISWCS 2013
CountryGermany
CityIlmenau
Period27/08/1330/08/13

Keywords

  • LTE
  • wireless networks
  • QoE
  • AHP

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