Clock Synchronization with Adaptive Weight Factor for Mobile Networks
Sirajo Abdullahi Bakura, Alain Lambert, Thomas V. Nowak · 2020
This paper deals with high mobility mobile ad-hoc networks (MANETs) whose nodes need to be synchronized. Unlike existing solutions, which either use reference clock or broadcast synchronization messages, our algorithm achieves synchronization by sending zero-bit pulses over the network and is thus usable in the first steps of establishing MANETs. We develop a dynamic adaptive selection technique for choosing an exponential smoothing factor and show the impact of using a fixed value of this parameter on the performance of the algorithm. In addition to that, we demonstrate the strength of our algorithm to withstand the network topological changes during execution. We evaluate the algorithm through extensive simulation in vehicular ad-hoc networks (VANETs). The simulation results show significant performance improvement in terms of reducing the clock offset and drift over the previous works.