Power consumption analysis of priority-based service differentiation scheme for LR-WPANs

Meejoung Kim, Een Jun Hwang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, we investigate the effect of service differentiation on the power consumption in contention period of IEEE 802.15.4 sensor networks. Power consumption is analysed for two different service differentiation schemes under non-saturation condition. The two service differentiation schemes are the differentiation by the backoff exponent (BED) and differentiation by the contention window (CWD), which provide multilevel differentiated services in beacon-enabled mode with slotted carrier sense multiple access/collision avoidance (CSMA/CA) algorithm. The analysis is based on the stationary probabilities of a discrete-time Markov chain, which is a model of CSMA/CA describing the state of a head packet of a device. Numerical results show that CWD uses the power more efficiently and performs better in terms of throughput, while BED more differentiates the service.

Original languageEnglish
Pages (from-to)1018-1028
Number of pages11
JournalInternational Journal of Electronics
Volume103
Issue number6
DOIs
Publication statusPublished - 2016 Jun 2

Fingerprint

Carrier sense multiple access
Collision avoidance
Electric power utilization
Markov processes
Sensor networks
Throughput

Keywords

  • contention window
  • Markov chain
  • Power consumption
  • Sensor network
  • Service differentiation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Power consumption analysis of priority-based service differentiation scheme for LR-WPANs. / Kim, Meejoung; Hwang, Een Jun.

In: International Journal of Electronics, Vol. 103, No. 6, 02.06.2016, p. 1018-1028.

Research output: Contribution to journalArticle

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