A 12.46µW Baseband Timing Circuitry for Synchronization and Duty-Cycling of Scalable Wireless Mesh Networks in IoT

Gantsog, Enkhbayasgalan; Bukreyev, Ivan; Lane, Frank; Apsel, Alyssa

doi:10.1109/rfic.2018.8429012

Cited by 1 publication

(3 citation statements)

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“…The signal processing core is able to detect the syncword regardless of the phase and frequency mismatch between the TX and the RX local oscillators (LOs). Prior works describe in detail the operations performed by the signal processing core [ 14 , 16 ]. If the syncword is detected, the state of the PCO is advanced.…”

Section: Synchronization Analysis and Requirementsmentioning

confidence: 99%

“…This emergent behavior can be modeled mathematically with the pulsed-couple oscillators (PCOs). Mirrollo and Strogatz [ 9 ] first published the PCO synchronization model that has been since applied to a variety of engineering applications [ 10 , 11 , 12 , 13 , 14 , 15 ]. The conceptual diagram is shown in Figure 2 b for three oscillators.…”

Section: Introductionmentioning

confidence: 99%

“…A key design feature that determines the network’s ability to duty-cycle and scale is a symmetric synchronization protocol that does not rely on dedicated beacons or relays. Previous work has demonstrated low-power baseband timing circuitry that enables scalable synchronization for narrowband communication and rudimentary mesh networking with commercial radios [ 14 , 16 ]. This paper expands on the previous work with a system-level analysis of the PCO-based synchronization parameters, which is then validated by measured results.…”

Section: Introductionmentioning

confidence: 99%

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PCO-Based BLE Mesh Accelerator

Bukreyev

Yüksel²,

et al. 2022

Sensors

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Bluetooth Low Energy (BLE) mesh networks enable diverse communication for the Internet of Things (IoT). However, existing BLE mesh implementations cannot simultaneously achieve low-power operation, symmetrical communication, and scalability. A major limitation of mesh networks is the inability of the BLE stack to handle network-scalable time synchronization. Pulse-coupled oscillators (PCOs) have been studied extensively and are able to achieve fast and reliable synchronization across a range of applications and network topologies. This paper presents a lightweight physical (PHY) layer accelerator to the BLE stack that enables scalable synchronization command with a PCO. The accelerator is a fully digital solution that can be synthesized with only the standard cells available in any silicon technology. This paper provides a detailed analysis of PCO-based BLE mesh networks and explores per-node system-level requirements. Finally, the analytical results are validated with measurements of a custom radio node based on the ubiquitous AD9364 transceiver.

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Section: Synchronization Analysis and Requirementsmentioning

confidence: 99%