Time Synchronization on Cognitive Radio Ad Hoc Networks: A Bio-Inspired Approach*
Michele Nogueira, Aravind Kailas, Nadine Pari, Bhargavi Chandrakumar · River Publishers eBooks · 2024
Harnessing the full power of the paradigm-shifting cognitive radio ad hoc networks (CRAHN) hinges on solving the problem of time synchronization between the radios during the different stages of the cognitive radio cycle. The dynamic network topology, the temporal and spatial variations in spectrum availability, and the distributed multi-hop architecture of CRAHN mandate novel solutions to achieve time synchronization and efficiently support spectrum sensing, access, decision and mobility. In this paper, we advance this research agenda by proposing the novel B io-inspired time SynC hronization protocol for CRAHN (BSynC). The protocol draws on the spontaneous firefly synchronization observed in parts of Southeast Asia. The significance of BSynC lies in its capability of promoting symmetric time synchronization between pairs of network nodes independent of the network topology or a predefined sequence for synchronization. It enables the nodes in CRAHN to synchronize in a decentralized manner efficiently, and is reliable. The findings suggest that BSynC improves convergence time, thereby favoring deployment in dynamic network scenarios.