On the scalability of cooperative time synchronization in pulse-connected networks
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Phase Transition and Hysteresis in an Ensemble of Stochastic Spiking Neurons
Neural Computation
Design and implementation of a PCO-based protocol for sensor networks
Proceedings of the 5th international conference on Embedded networked sensor systems
Extension of pairwise broadcast clock synchronization for multicluster sensor networks
EURASIP Journal on Advances in Signal Processing
Decentralized Synchronization and Estimation in Wireless Networks
NEW2AN '08 / ruSMART '08 Proceedings of the 8th international conference, NEW2AN and 1st Russian Conference on Smart Spaces, ruSMART on Next Generation Teletraffic and Wired/Wireless Advanced Networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
A synchronization metric for meshed networks of pulse-coupled oscillators
Proceedings of the 3rd International Conference on Bio-Inspired Models of Network, Information and Computing Sytems
Virtual-coordinate-based delivery-guaranteed routing protocol in wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
A low-complexity scheduling algorithm for proportional fairness in body area networks
BodyNets '09 Proceedings of the Fourth International Conference on Body Area Networks
A Survey of Models and Design Methods for Self-organizing Networked Systems
IWSOS '09 Proceedings of the 4th IFIP TC 6 International Workshop on Self-Organizing Systems
Biologically inspired intercellular slot synchronization
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
Time transfer in impulse radio networks
IEEE Transactions on Communications
Bio-inspired algorithms for decentralized round-robin and proportional fair scheduling
IEEE Journal on Selected Areas in Communications
Energy-efficient estimation of clock offset for inactive nodes in wireless sensor networks
IEEE Transactions on Information Theory
Design and implementation of a single-frequency mesh network using OpenAirInterface
EURASIP Journal on Wireless Communications and Networking - Special issue on simulators and experimental testbeds design and development for wireless networks
Synchronization in sensor networks: an overview
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Comparison of robustness of time synchronisation in sensor networks
International Journal of Autonomous and Adaptive Communications Systems
Average time synchronization in wireless sensor networks by pairwise messages
Computer Communications
Self-organizing synchronization with inhibitory-coupled oscillators: Convergence and robustness
ACM Transactions on Autonomous and Adaptive Systems (TAAS)
A novel approach to guarantee causal message ordering in pre-planned wireless sensor networks
ICA3PP'12 Proceedings of the 12th international conference on Algorithms and Architectures for Parallel Processing - Volume Part II
ICONIP'12 Proceedings of the 19th international conference on Neural Information Processing - Volume Part V
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Synchronization is considered a particularly difficult task in wireless sensor networks due to its decentralized structure. Interestingly, synchrony has often been observed in networks of biological agents (e.g., synchronously flashing fireflies, or spiking of neurons). In this paper, we propose a bio-inspired network synchronization protocol for large scale sensor networks that emulates the simple strategies adopted by the biological agents. The strategy synchronizes pulsing devices that are led to emit their pulses periodically and simultaneously. The convergence to synchrony of our strategy follows from the theory of Mirollo and Strogatz, 1990, while the scalability is evident from the many examples existing in the natural world. When the nodes are within a single broadcast range, our key observation is that the dependence of the synchronization time on the number of nodes N is subject to a phase transition: for values of N beyond a specific threshold, the synchronization is nearly immediate; while for smaller N, the synchronization time decreases smoothly with respect to N. Interestingly, a tradeoff is observed between the total energy consumption and the time necessary to reach synchrony. We obtain an optimum operating point at the local minimum of the energy consumption curve that is associated to the phase transition phenomenon mentioned before. The proposed synchronization protocol is directly applied to the cooperative reach-back communications problem. The main advantages of the proposed method are its scalability and low complexity.