Paper Info
Title
Phase-based High-Precision Synchronization for Wireless Networks using FPGAs
Abstract
In distributed systems, exact synchronization is essential for many applications. Wireless localization and communication systems, as well as high-precision sensor networks, demand time synchronization accuracies in the order of magnitude of nanoseconds or picoseconds. In this paper, we present a novel method of phase-based high-precision frequency and time synchronization for wireless devices. By observing the network traffic, the slave devices detect and compensate the drift of their local oscillator in relation to a master device. Once the frequency is synchronized, our new algorithm adjusts the system clock of the slaves. We realize our approach with the help of a software-defined radio consisting of a Field Programmable Gate Array and a radio frequency transceiver. By using a 5 GHz experimental setup based on IEEE 802.11a, the clock of a slave device is phase aligned to the clock of a master device with a precision of less than 5 ps and an accuracy of ±50 ps.
Year
DOI
Venue
2018
10.1109/ISPCS.2018.8543063
2018 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)
Keywords
Field
DocType
synchronization,syntonization,wireless networks,IEEE 802.11a,Field Programmable Gate Array (FPGA),gigabit transceiver (GTX),software-defined radio (SDR)
IEEE 802.11a-1999,Wireless network,Synchronization,Transceiver,Wireless,Computer science,Real-time computing,Radio frequency,Electronic engineering,Wireless sensor network,Local oscillator
Conference
ISSN
ISBN
Citations 
1949-0305
978-1-5386-4264-1
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Markus Appel110.70
Frank Winkler2369.50
Beate Meffert323.84