On clock synchronization over wireless LAN using timing advertisement mechanism and TSF timers

Mahmood, Anzar; Exel, Reinhard; Bigler, Thomas

doi:10.1109/ispcs.2014.6948529

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…In [9] and [10] authors propose to synchronize the timing of AP and client to their respective time synchronization function (TSF) timers. By default, as the TSF timers of the AP and the client are synchronized, the timing of AP and client will be synchronized too.…”

Section: Related Workmentioning

confidence: 99%

“…Contrary to PTP-based synchronization mechanisms in [7], [8], where delay request-response is used, the presented solution in this paper uses beacon-based mechanism for time synchronization that keeps the overhead limited in the wireless channel. In addition to research presented in [9], [10], we extend the time synchronization to inter-AP scenarios by controlling AP TSF from the wired network.…”

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Enabling TSN over IEEE 802.11: Low-overhead Time Synchronization for Wi-Fi Clients

Haxhibeqiri

Jiao

Aslam

et al. 2021

2021 22nd IEEE International Conference on Industrial Technology (ICIT)

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The ever-increasing need for real-time communication of factory processes in one hand, and the offered flexibility of wireless communication on the other, is pushing Time Sensitive Networking (TSN) evolution towards the wireless networks. By definition, wireless networks are non-deterministic due to their random channel access mechanism. In order to introduce TSN vision to the wireless world, such randomness needs to be controlled. In this paper, we implement a low-overhead beaconbased time synchronization mechanism that offers synchronization accuracy of as low as 10 µs, on average, for low beacon interval. Such accuracy is achieved by implementing a follow-up beacon packet, in addition to beacon mechanism itself, in order to account for any delays in sending beacons. The synchronization mechanism is tested in different intra and inter access point communication settings.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Enabling TSN over IEEE 802.11: Low-overhead Time Synchronization for Wi-Fi Clients

Haxhibeqiri

Jiao

Aslam

et al. 2021

2021 22nd IEEE International Conference on Industrial Technology (ICIT)

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“…4a, where the transmitting node ID is shown for active slots. Knowing the TSCH network is using channels [11,12,13,14] and Wi-Fi network channel 11. It is possible to generate model shown in Fig.…”

Section: Fft Bins In Case Of Ht40 Modementioning

confidence: 99%

“…The user has an ability to control how often the spectral data is reported to the kernel and through debugfs interface to the user process. The samples are time stamped with the accurate Timing Synchronization Function (TSF) value [12], [13], that can be used later to extract timing information for a whole Wi-Fi Basic Service Set (BSS).…”

Section: B Spectrum Sensingmentioning

confidence: 99%

Towards efficient coexistence of IEEE 802.15.4e TSCH and IEEE 802.11

Chwalisz

Wolisz

2018

NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium

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A major challenge in wide deployment of smart wireless devices, using different technologies and sharing the same 2.4 GHz spectrum, is to achieve coexistence across multiple technologies. The IEEE 802.11 (WLAN) and the IEEE 802.15.4e TSCH (WSN) where designed with different goals in mind and both play important roles for respective applications. However, they cause mutual interference and degraded performance while operating in the same space. To improve this situation we propose an approach to enable a cooperative control which type of network is transmitting at given time, frequency and place.We recognize that Time-Slotted Channel Hopping (TSCH) based sensor network is expected to occupy only small share of time, and that the nodes are by design tightly synchronized. We develop mechanism enabling over-the-air synchronization of the Wi-Fi network to the TSCH based sensor network. Finally, we show that Wi-Fi network can avoid transmitting in the "collision periods". We provide full design and show prototype implementation based on the Commercial off-the-shelf (COTS) devices. Our solution does not require changes in any of the standards.Index Terms-Wireless LAN , Wireless sensor networks, Heterogeneous networks, Cooperative communication • A single Wi-Fi basic service set working in the infrastructure mode i.e., consisting of one Access Point (AP) and multiple Stations. Wi-Fi devices under consideration are using COTS hardware with the standard spectrum sensing 978-1-5090-0223-8

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OpenWiFiSync: Open Source Implementation of a Clock Synchronization Algorithm Using Wi-Fi

Gundall,

Schotten

2024

2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)

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On clock synchronization over wireless LAN using timing advertisement mechanism and TSF timers

Cited by 11 publications

References 7 publications

Enabling TSN over IEEE 802.11: Low-overhead Time Synchronization for Wi-Fi Clients

Enabling TSN over IEEE 802.11: Low-overhead Time Synchronization for Wi-Fi Clients

Towards efficient coexistence of IEEE 802.15.4e TSCH and IEEE 802.11

OpenWiFiSync: Open Source Implementation of a Clock Synchronization Algorithm Using Wi-Fi

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