Quality of service support under DRX mechanism in LTE advanced wireless networks

Tsern-Huei Lee, Cheng Jie Tsai, Tzu Han Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Energy saving and quality of service (QoS) support are two important issues of Long-Term Evolution Advanced (LTE-A) wireless networks. Unfortunately, achieving high energy saving efficiency often implies degradation of QoS support. In this paper, we address the issue of QoS support under Discontinuous Reception (DRX), the power saving mechanism of LTE-A. Different from previous studies which analyzed average packet delay under DRX mechanism, we adopt packet loss ratio due to violation of delay bound as QoS requirements of real-time applications. The problem of QoS support under DRX mechanism is defined as an optimization problem to maximize average power saving under the constraint that the packet loss ratio is no greater than a pre-determined threshold. We derive packet loss ratio and energy saving efficiency given DRX parameter values and propose an approach to select appropriate DRX parameter values. Simulations are conducted to verify our analysis. We found that the analytical results match well with simulations. Moreover, the energy saving efficiency achieved by the selected DRX parameter values is very close to that of the optimum solution.

Original languageEnglish
Title of host publication2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Proceedings
DOIs
StatePublished - 1 Dec 2013
Event2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Dresden, Germany
Duration: 2 Jun 20135 Jun 2013

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013
CountryGermany
CityDresden
Period2/06/135/06/13

Fingerprint Dive into the research topics of 'Quality of service support under DRX mechanism in LTE advanced wireless networks'. Together they form a unique fingerprint.

  • Cite this

    Lee, T-H., Tsai, C. J., & Wu, T. H. (2013). Quality of service support under DRX mechanism in LTE advanced wireless networks. In 2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Proceedings [6692726] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCSpring.2013.6692726