Fix It, Don't Bin It! - CRC Error Correction in Bluetooth Low Energy

Evgeny Tsimbalo, Xenofon Fafoutis, Robert Piechocki

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

9 Citations (Scopus)
303 Downloads (Pure)

Abstract

In this paper, we introduce error correction to the Bluetooth Low Energy (BLE) standard by utilising data redundancy provided by the Cyclic Redundancy Check (CRC) code used to detect erroneous packets. We assume a scenario with an energy-constrained transmitter and a constraint-free infrastructure, which allows us to introduce additional signal processing at the receiving side while keeping the transmitter intact. A novel approach of applying iterative decoding techniques to the BLE CRC code is investigated in this work. By using these techniques and real BLE packets collected in an office environment, we show that by enabling CRC error correction, the sensitivity of the BLE receiver can be improved by up to 3 dB. At the same time, up to 60% of corrupted packets can be corrected, which directly translates to a significant reduction in the number of retransmissions and a noticeable energy saving.
Original languageEnglish
Title of host publicationProceedings of the 2nd IEEE World Forum on Internet of Things (WF-IoT)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Electronic)978-1-5090-0366-2
ISBN (Print)978-1-5090-0365-5
DOIs
Publication statusPublished - 14 Dec 2015
Event2nd IEEE World Forum on Internet of Things, WF-IoT 2015 - Milan, Italy
Duration: 14 Dec 201516 Dec 2015

Conference

Conference2nd IEEE World Forum on Internet of Things, WF-IoT 2015
CountryItaly
CityMilan
Period14/12/1516/12/15

Structured keywords

  • Digital Health
  • SPHERE

Keywords

  • error correction
  • CRC
  • Bluetooth Low Energy

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