TU Berlin

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EWI - Energy efficient WLAN for IoT


  • Paderborn University
  • TU Berlin
  • Software AG

Team @ CCS


  • BMBF

Project Time

  • 11/2018-05/2021


In recent years wake-up receivers have shown to be a promising technique to achive ultra-low power communication in wireless sensor networks. In this project we study the feasibility of using this technique to make Wireless LAN (WLAN) more power efficient. Instead of using the duty-cycling approach of the normal power save mode, we add an additional wake-up receiver to the mobile stations. If an accesspoint gets new data for a station in sleep mode, it can use this receiver to wake the station up and immediately send the packets. This technique achieves lower power consumption and lower delays compared to existing solutions. We study our proposed system by building hardware prototypes in conjunction with extensive simulations.

Selected Publications

  • Johannes Blobel, Wu Tran, Archan Misra and Falko Dressler, "Low-Power Downlink for the Internet of Things using IEEE 802.11-compliant Wake-Up Receivers," Proceedings of 40th IEEE International Conference on Computer Communications (INFOCOM 2021), Virtual Conference, May 2021. (to appear) [BibTeX, PDF and Details...]
  • Johannes Blobel, Florian Menne, Dongxiao Yu, Xiuzhen Cheng and Falko Dressler, "Low-power and Low-delay WLAN using Wake-up Receivers," IEEE Transactions on Mobile Computing (TMC), 2020. (to appear) [DOI, BibTeX, PDF and Details...]