An energy-efficient sleep scheduling with QoS consideration in 3GPP LTE-advanced networks for internet of things

Jia Ming Liang*, Jen-Jee Chen, Hung Hsin Cheng, Yu-Chee Tseng

*Corresponding author for this work

Research output: Contribution to journalArticle

113 Scopus citations

Abstract

With the design of data communications in mind, 3GPP LTE-advanced (LTE-A) is probably the most promising technology for Internet of Things (IoT). For IoT applications, continuous low-rate streaming data may be reported from devices over a long period of time, imposing stringent requirements on power saving. To manage power consumption, 3GPP LTE-A has defined the discontinuous reception/transmission (DRX/DTX) mechanism to allow devices to turn off their radio interfaces and go to sleep in various patterns. Existing literature has paid much attention to evaluate the performance of DRX/DTX; however, how to tune DRX/DTX parameters to optimize energy cost is still left open. This paper addresses the DRX/DTX optimization, by asking how to maximize the sleep periods of devices while guarantee their quality-of-service (QoS), especially on the aspects of traffic bit-rate, packet delay, and packet loss rate in IoT applications. Efficient schemes to optimize DRX/DTX parameters and schedule devices' packets with the base station are proposed. The key idea of our schemes is to balance the impacts between QoS parameters and DRX/DTX configurations. Simulation results show that our schemes can guarantee traffic bit-rate, packet delay, and packet loss rate while save energy of user equipments.

Original languageEnglish
Article number6472116
Pages (from-to)13-22
Number of pages10
JournalIEEE Journal on Emerging and Selected Topics in Circuits and Systems
Volume3
Issue number1
DOIs
StatePublished - 11 Mar 2013

Keywords

  • Discontinuous reception/transmission (DRX/DTX)
  • internet of things (IoT)
  • long term evolution-advanced (LTE-advanced)
  • power saving
  • quality of service
  • sleep scheduling

Fingerprint Dive into the research topics of 'An energy-efficient sleep scheduling with QoS consideration in 3GPP LTE-advanced networks for internet of things'. Together they form a unique fingerprint.

  • Cite this