Clock Synchronization over Networks Using Sawtooth Models
P. del Aguila Pla, L. Pellaco, S. Dwivedi, P. Händel, J. Jaldén
Proceedings of the Forty-Fifth IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'20), Barcelona, Kingdom of Spain, May 4-8, 2020, in press.
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Clock synchronization and ranging over a wireless network with low communication overhead is a challenging goal with tremendous impact. In this paper, we study the use of time-to-digital converters in wireless sensors, which provides clock synchronization and ranging at negligible communication overhead through a sawtooth signal model for round trip times. In particular, we derive Cramér-Rao lower bounds for a linearitzation of the sawtooth signal model, and we thoroughly evaluate simple estimation techniques by simulation, giving clear and concise performance references for this technology.