DeWOZ: Rethinking the schmidl-cox algorithm for detecting Wi-Fi out of ZigBee interference

Chenglong Shao; Hoorin Park; Wonjun Lee

doi:10.1109/LWC.2018.2870369

DeWOZ: Rethinking the schmidl-cox algorithm for detecting Wi-Fi out of ZigBee interference

Chenglong Shao, Hoorin Park, Wonjun Lee^*

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

This letter presents detect Wi-Fi signals out of ZigBee (DeWOZ), a clean-slate technique to discern Wi-Fi packets drowning in ZigBee interference. Unlike existing solutions that are restricted to the cases where Wi-Fi signal strength is much higher than ZigBee, Wi-Fi signals only interfere with ZigBee payload, or beforehand clear Wi-Fi transmissions are done to obtain transmitter-specific information, DeWOZ aims at achieving the detection of relatively weak Wi-Fi signal hidden in both ZigBee header and payload portions only based on a single corrupted signal. DeWOZ re-explores the Wi-Fi-oriented Schmidl-Cox algorithm for corrupted signal synchronization followed by two key operations, autocorrelation anomaly detection and adaptive discrete Fourier transform, to sniff Wi-Fi out of ZigBee header and payload, respectively. The feasibility of DeWOZ is validated via practical experiment.

Original language	English
Article number	8465960
Pages (from-to)	289-292
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	8
Issue number	1
DOIs	https://doi.org/10.1109/LWC.2018.2870369
Publication status	Published - 2019 Feb

Bibliographical note

Publisher Copyright:
© 2012 IEEE.

Keywords

Schmidl-Cox
Wi-Fi
ZigBee
interference

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/LWC.2018.2870369

Cite this

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abstract = "This letter presents detect Wi-Fi signals out of ZigBee (DeWOZ), a clean-slate technique to discern Wi-Fi packets drowning in ZigBee interference. Unlike existing solutions that are restricted to the cases where Wi-Fi signal strength is much higher than ZigBee, Wi-Fi signals only interfere with ZigBee payload, or beforehand clear Wi-Fi transmissions are done to obtain transmitter-specific information, DeWOZ aims at achieving the detection of relatively weak Wi-Fi signal hidden in both ZigBee header and payload portions only based on a single corrupted signal. DeWOZ re-explores the Wi-Fi-oriented Schmidl-Cox algorithm for corrupted signal synchronization followed by two key operations, autocorrelation anomaly detection and adaptive discrete Fourier transform, to sniff Wi-Fi out of ZigBee header and payload, respectively. The feasibility of DeWOZ is validated via practical experiment.",

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KW - interference

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DeWOZ: Rethinking the schmidl-cox algorithm for detecting Wi-Fi out of ZigBee interference

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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