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An over-the-air CFO-assisted synchronization algorithm for TDOA-based localization systems

Zohreh Ebadi, Cedric Hannotier, Heidi Steendam (UGent) , Francois Horlin and François Quitin
(2020) 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall). In IEEE Vehicular Technology Conference VTC
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Abstract
Time-difference-of-arrival (TDOA) localization systems estimate the difference in propagation delay between a target transmitter and pairs of receivers in order to locate the target. One important requirement is that the receiver nodes should be accurately time-synchronized, which is hard to achieve in practice without relying on cable-connected receivers. Over-the-air synchronization algorithms often rely on periodic messages from a master node, but due to clock drift, the rate of these messages needs to be high. In this paper, we propose a new synchronization algorithm that additionally exploits the carrier frequency offset (CFO) between the target node and the receiver nodes to reduce the rate of messages from the master node while maintaining good synchronization accuracy. Simulation results show the good performance of the proposed method, and preliminary experimental results show its feasibility on a hardware platform.
Keywords
Localization, TDOA, synchronization, CFO

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MLA
Ebadi, Zohreh, et al. “An Over-the-Air CFO-Assisted Synchronization Algorithm for TDOA-Based Localization Systems.” 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall), IEEE, 2020, doi:10.1109/VTC2020-Fall49728.2020.9348838.
APA
Ebadi, Z., Hannotier, C., Steendam, H., Horlin, F., & Quitin, F. (2020). An over-the-air CFO-assisted synchronization algorithm for TDOA-based localization systems. 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall). Presented at the IEEE 92nd Vehicular Technology Conference (IEEE VTC-Fall), Online. https://doi.org/10.1109/VTC2020-Fall49728.2020.9348838
Chicago author-date
Ebadi, Zohreh, Cedric Hannotier, Heidi Steendam, Francois Horlin, and François Quitin. 2020. “An Over-the-Air CFO-Assisted Synchronization Algorithm for TDOA-Based Localization Systems.” In 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall). IEEE. https://doi.org/10.1109/VTC2020-Fall49728.2020.9348838.
Chicago author-date (all authors)
Ebadi, Zohreh, Cedric Hannotier, Heidi Steendam, Francois Horlin, and François Quitin. 2020. “An Over-the-Air CFO-Assisted Synchronization Algorithm for TDOA-Based Localization Systems.” In 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall). IEEE. doi:10.1109/VTC2020-Fall49728.2020.9348838.
Vancouver
1.
Ebadi Z, Hannotier C, Steendam H, Horlin F, Quitin F. An over-the-air CFO-assisted synchronization algorithm for TDOA-based localization systems. In: 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall). IEEE; 2020.
IEEE
[1]
Z. Ebadi, C. Hannotier, H. Steendam, F. Horlin, and F. Quitin, “An over-the-air CFO-assisted synchronization algorithm for TDOA-based localization systems,” in 2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall), Online, 2020.
@inproceedings{8691370,
  abstract     = {{Time-difference-of-arrival (TDOA) localization systems estimate the difference in propagation delay between a target transmitter and pairs of receivers in order to locate the target. One important requirement is that the receiver nodes should be accurately time-synchronized, which is hard to achieve in practice without relying on cable-connected receivers. Over-the-air synchronization algorithms often rely on periodic messages from a master node, but due to clock drift, the rate of these messages needs to be high. In this paper, we propose a new synchronization algorithm that additionally exploits the carrier frequency offset (CFO) between the target node and the receiver nodes to reduce the rate of messages from the master node while maintaining good synchronization accuracy. Simulation results show the good performance of the proposed method, and preliminary experimental results show its feasibility on a hardware platform.}},
  author       = {{Ebadi, Zohreh and Hannotier, Cedric and Steendam, Heidi and Horlin, Francois and Quitin, François}},
  booktitle    = {{2020 IEEE 92nd Vehicular Technology Conference Fall (VTC2020-Fall)}},
  isbn         = {{9781728194844}},
  issn         = {{2577-2465}},
  keywords     = {{Localization,TDOA,synchronization,CFO}},
  language     = {{eng}},
  location     = {{Online}},
  pages        = {{5}},
  publisher    = {{IEEE}},
  title        = {{An over-the-air CFO-assisted synchronization algorithm for TDOA-based localization systems}},
  url          = {{http://dx.doi.org/10.1109/VTC2020-Fall49728.2020.9348838}},
  year         = {{2020}},
}
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