Precise Clock Synchronization in High Performance Wireless Communication for Time Sensitive Networking
TLDR
By incorporating clock drift factor, the accuracy of clock offset estimation of conventional PTP scheme can be significantly improved, and in order to enhance the application of proposed clock synchronization scheme, typically in non-line-of-sight industrial communication environment.Abstract:
In this paper, an enhanced precision time protocol (PTP) to enable precise clock synchronization between the nodes within an industrial wireless sensor network deployed for critical control and automation applications is proposed. As it will be shown, by incorporating clock drift factor, the accuracy of clock offset estimation of conventional PTP scheme can be significantly improved. Furthermore, in order to enhance the application of proposed clock synchronization scheme, typically in non-line-of-sight industrial communication environment, the problem of efficient symbol timing synchronization is also studied, and a simplified, yet efficient, start of the frame detector that enables robust timestamp message decoding during clock synchronization period is also proposed.read more
Citations
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Ultra-Low Latency (ULL) Networks: The IEEE TSN and IETF DetNet Standards and Related 5G ULL Research
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References
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Time and Frequency Synchronization for BRAN using PN-sequence Preambles
TL;DR: This paper compares and analyze preambles for OFDM systems based on repeated OFDM data symbols or repeated short pseudonoise sequences (PN-sequences) and finds the PN-based preamble gives better detection properties in terms of lower false detection probability and lower probability of missing the synchronization signal.
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