Mrs. Z: Improving ZigBee throughput via multi-rate transmission

Yifeng Cao, Linghe Kong, Liang He, Guihai Chen, Min You Wu, Tian He

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

2 Scopus citations

Abstract

ZigBee is a widely used wireless technology in low-power and short-range scenarios such as Internet of Things (IoT), sensor networks, and industrial wireless networks. However, the standard ZigBee supports only one data rate, 250Kbps, which thoroughly limits ZigBee's efficiency in dynamic wireless channels. In this paper, we propose Mrs.Z, a novel physical layer design to enable multi-rate selection in ZigBee. The key idea is to change the single spectrum spreading length to multiple ones. Correspondingly, to gracefully adapt to the channel variations, we propose a BER-based rate selection scheme, dividing bit errors into two categories: errors caused by the exceeding despreading threshold, which can be discovered in the physical layer, and caused by incorrect despreading, which is not visible until cyclic redundancy check (CRC) in the media access control (MAC) layer. Then, the receiver selects the rate based on the underlying negative impacts incurred by them and feedbacks to the transceiver. We implement Mrs.Z on USRPs and evaluate its performance in different scenarios. Results demonstrate that Mrs.Z achieves an improvement of 20% and 80% compared to the classic SoftRate and the standard ZigBee.

Original languageEnglish (US)
Title of host publication2017 IEEE 25th International Conference on Network Protocols, ICNP 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781509065011
DOIs
StatePublished - Nov 21 2017
Event25th IEEE International Conference on Network Protocols, ICNP 2017 - Toronto, Canada
Duration: Oct 10 2017Oct 13 2017

Publication series

NameProceedings - International Conference on Network Protocols, ICNP
Volume2017-October
ISSN (Print)1092-1648

Other

Other25th IEEE International Conference on Network Protocols, ICNP 2017
CountryCanada
CityToronto
Period10/10/1710/13/17

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  • Cite this

    Cao, Y., Kong, L., He, L., Chen, G., Wu, M. Y., & He, T. (2017). Mrs. Z: Improving ZigBee throughput via multi-rate transmission. In 2017 IEEE 25th International Conference on Network Protocols, ICNP 2017 [8117546] (Proceedings - International Conference on Network Protocols, ICNP; Vol. 2017-October). IEEE Computer Society. https://doi.org/10.1109/ICNP.2017.8117546