DOTA: Physical-layer decomposing and threading for ZigBee/Wi-Fi Co-Transmission

Chenglong Shao, Hoorin Park, Heejun Roh, Wonjun Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The ever-increasing deployment of Wi-Fi and ZigBee networks aggravates cross-technology interference (CTI) in the 2.4 GHz unlicensed spectrum. This letter presents a clean-slate technique, DOTA, to combat the CTI and enable ZigBee/Wi-Fi co-transmission. Unlike existing solutions merely handling Wi-Fi-to-ZigBee interference, DOTA accounts for the true sense of CTI wherein ZigBee and Wi-Fi interfere with each other. At the heart of DOTA lies two operations, signal polishing and pulse disambiguation, for decomposing and threading signal samples to recover contaminated ZigBee and Wi-Fi signals. Experiment results validate the feasibility of superiority of DOTA.

Original languageEnglish
Article number8425644
Pages (from-to)133-136
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number1
Publication statusPublished - 2019


  • Wi-Fi
  • ZigBee
  • cross-technology interference

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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