TR2011-019

Improving Range Accuracy of IEEE 802.15.4a Radios in Presence of Clock Frequency Offsets

    •  Sahinoglu, Z., "Improving Range Accuracy of IEEE 802.15.4a Radios in Presence of Clock Frequency Offsets", IEEE Communications Letters, Vol. 15, No. 2, pp. 244-246, February 2011.
      BibTeX TR2011-019 PDF
      • @article{Sahinoglu2011feb,
      • author = {Sahinoglu, Z.},
      • title = {Improving Range Accuracy of IEEE 802.15.4a Radios in Presence of Clock Frequency Offsets},
      • journal = {IEEE Communications Letters},
      • year = 2011,
      • volume = 15,
      • number = 2,
      • pages = {244--246},
      • month = feb,
      • issn = {1089-7798},
      • url = {https://www.merl.com/publications/TR2011-019}
      • }
  • Research Area:

    Signal Processing

Abstract:

Two-way time-of-arrival (TW-ToA) is a ranging protocol that provides distance between two devices in absence of synchronization, but it suffers from range estimation errors when clock frequency offset is present. In this work, we provide a timing counter management scheme for TW-ToA that suppresses ranging errors induced by any clock frequency offset between a transmitter and receiver pair. The suggested scheme is shown to be superior both theoretically and empirically to the one that is recommended in the IEEE 802.15.4a standard.

 

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