PolarScout: Wi-Fi Interference-Resilient ZigBee Communication via Shell-Shaping

Chenglong Shao; Hoorin Park; Heejun Roh; Wonjun Lee; Hyoil Kim

doi:10.1109/TNET.2020.2989387

PolarScout: Wi-Fi Interference-Resilient ZigBee Communication via Shell-Shaping

Chenglong Shao, Hoorin Park, Heejun Roh, Wonjun Lee, Hyoil Kim

School of Cybersecurity

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

11 Citations (Scopus)

Abstract

The prosperity of IEEE 802.11-based Wi-Fi networks aggravates cross-technology interference to IEEE 802.15.4-enabled ZigBee networks widely deployed to enable various Internet-of-Things applications. To make ZigBee communication reliable and robust even in a dense Wi-Fi environment, taming Wi-Fi interference in ZigBee networks especially from the perspective of physical layer is of paramount importance. In this context, this work takes aim to design a novel Wi-Fi interference-resilient ZigBee decoder called PolarScout, which separates collided ZigBee signal samples out of Wi-Fi interference to bootstrap ZigBee data decoding. Unlike several existing solutions which need clear signal preamble, tremendous signal strength difference between ZigBee and Wi-Fi, and Wi-Fi interference recognition in prior to ZigBee decoding, PolarScout aims at direct ZigBee decoding in a more generic and challenging case where Wi-Fi interference features a wide range of power levels and arises within a ZigBee packet at an arbitrary position. At the heart of PolarScout lies a subtle shell-shaping technique which harnesses a customized sample sequence to smooth the shell of corrupted signal samples. PolarScout then refers to the resulting shell to recover each contaminated ZigBee sample. Experimental results validate the superiority of PolarScout and its resilience to a wide range of Wi-Fi interference types.

Original language	English
Article number	9093147
Pages (from-to)	1587-1600
Number of pages	14
Journal	IEEE/ACM Transactions on Networking
Volume	28
Issue number	4
DOIs	https://doi.org/10.1109/TNET.2020.2989387
Publication status	Published - 2020 Aug

Keywords

Wi-Fi
ZigBee
cross-technology interference
physical layer
wireless coexistence

ASJC Scopus subject areas

Software
Computer Science Applications
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/TNET.2020.2989387

Cite this

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title = "PolarScout: Wi-Fi Interference-Resilient ZigBee Communication via Shell-Shaping",

abstract = "The prosperity of IEEE 802.11-based Wi-Fi networks aggravates cross-technology interference to IEEE 802.15.4-enabled ZigBee networks widely deployed to enable various Internet-of-Things applications. To make ZigBee communication reliable and robust even in a dense Wi-Fi environment, taming Wi-Fi interference in ZigBee networks especially from the perspective of physical layer is of paramount importance. In this context, this work takes aim to design a novel Wi-Fi interference-resilient ZigBee decoder called PolarScout, which separates collided ZigBee signal samples out of Wi-Fi interference to bootstrap ZigBee data decoding. Unlike several existing solutions which need clear signal preamble, tremendous signal strength difference between ZigBee and Wi-Fi, and Wi-Fi interference recognition in prior to ZigBee decoding, PolarScout aims at direct ZigBee decoding in a more generic and challenging case where Wi-Fi interference features a wide range of power levels and arises within a ZigBee packet at an arbitrary position. At the heart of PolarScout lies a subtle shell-shaping technique which harnesses a customized sample sequence to smooth the shell of corrupted signal samples. PolarScout then refers to the resulting shell to recover each contaminated ZigBee sample. Experimental results validate the superiority of PolarScout and its resilience to a wide range of Wi-Fi interference types. ",

keywords = "Wi-Fi, ZigBee, cross-technology interference, physical layer, wireless coexistence",

author = "Chenglong Shao and Hoorin Park and Heejun Roh and Wonjun Lee and Hyoil Kim",

note = "Funding Information: Manuscript received March 10, 2019; revised December 22, 2019; accepted April 8, 2020; approved by IEEE/ACM TRANSACTIONS ON NETWORKING Editor F. Dressler. Date of publication May 14, 2020; date of current version August 18, 2020. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) under Grant 2019R1A2C2088812. (Corresponding author: Wonjun Lee.) Chenglong Shao, Hoorin Park, and Wonjun Lee are with the Network and Security Research Laboratory, School of Cybersecurity, Korea University, Seoul 02841, South Korea (e-mail: wlee@korea.ac.kr). Publisher Copyright: {\textcopyright} 1993-2012 IEEE.",

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AB - The prosperity of IEEE 802.11-based Wi-Fi networks aggravates cross-technology interference to IEEE 802.15.4-enabled ZigBee networks widely deployed to enable various Internet-of-Things applications. To make ZigBee communication reliable and robust even in a dense Wi-Fi environment, taming Wi-Fi interference in ZigBee networks especially from the perspective of physical layer is of paramount importance. In this context, this work takes aim to design a novel Wi-Fi interference-resilient ZigBee decoder called PolarScout, which separates collided ZigBee signal samples out of Wi-Fi interference to bootstrap ZigBee data decoding. Unlike several existing solutions which need clear signal preamble, tremendous signal strength difference between ZigBee and Wi-Fi, and Wi-Fi interference recognition in prior to ZigBee decoding, PolarScout aims at direct ZigBee decoding in a more generic and challenging case where Wi-Fi interference features a wide range of power levels and arises within a ZigBee packet at an arbitrary position. At the heart of PolarScout lies a subtle shell-shaping technique which harnesses a customized sample sequence to smooth the shell of corrupted signal samples. PolarScout then refers to the resulting shell to recover each contaminated ZigBee sample. Experimental results validate the superiority of PolarScout and its resilience to a wide range of Wi-Fi interference types.

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PolarScout: Wi-Fi Interference-Resilient ZigBee Communication via Shell-Shaping

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