Optimizing DRX for Video delivery over LTE: Utilizing Channel Prediction and In-network caching

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

We jointly optimize Discontinuous Reception (DRX) cycle length and LTE scheduling to minimize mobile devices' energy usage for video delivery, utilising the now well-established potential to predict future channel conditions in cellular networks. Employing in-network caching, we set a strict buffer constraint which provides zero buffer underflow to improve Quality of Experience. Our study provides insight into the energy saving potential sophisticated DRX schemes hold, compared with the currently used static method. To this end, two novel DRX approaches are proposed and studied. The results show that more sophisticated DRX schemes (with variable DRX cycle length) can potentially save 69 percent energy for mobile devices, encouraging further research in the field.

Details

Authors
Organisations
External organisations
  • Sony Mobile Communications AB
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Communication Systems
Original languageEnglish
Title of host publication15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)978-3-9018-8290-6
Publication statusPublished - 2017
Publication categoryResearch
Peer-reviewedYes
Event Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2017 - Paris, France
Duration: 2017 May 152017 May 19

Conference

Conference Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2017
CountryFrance
CityParis
Period2017/05/152017/05/19

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