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

Meejoung Kim; Een Jun Hwang

doi:10.1080/00207217.2015.1082638

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

Meejoung Kim, Een Jun Hwang

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1018-1028
Number of pages	11
Journal	International Journal of Electronics
Volume	103
Issue number	6
DOIs	https://doi.org/10.1080/00207217.2015.1082638
Publication status	Published - 2016 Jun 2

Keywords

contention window
Markov chain
Power consumption
Sensor network
Service differentiation

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1080/00207217.2015.1082638

Cite this

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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.",

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

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Keywords

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