A Scalable Protocol for Cooperative Time Synchronization Using Spatial Averaging
<|reference_start|>A Scalable Protocol for Cooperative Time Synchronization Using Spatial Averaging: Time synchronization is an important aspect of sensor network operation. However, it is well known that synchronization error accumulates over multiple hops. This presents a challenge for large-scale, multi-hop sensor networks with a large number of nodes distributed over wide areas. In this work, we present a protocol that uses spatial averaging to reduce error accumulation in large-scale networks. We provide an analysis to quantify the synchronization improvement achieved using spatial averaging and find that in a basic cooperative network, the skew and offset variance decrease approximately as $1/\bar{N}$ where $\bar{N}$ is the number of cooperating nodes. For general networks, simulation results and a comparison to basic cooperative network results are used to illustrate the improvement in synchronization performance.<|reference_end|>
@article{hu2006a,
    title={A Scalable Protocol for Cooperative Time Synchronization Using Spatial
  Averaging},
    author={An-swol Hu and Sergio D. Servetto (Cornell University)},
    journal={arXiv preprint arXiv:cs/0611003},
    year={2006},
    archivePrefix={arXiv},
    eprint={cs/0611003},
    primaryClass={cs.NI cs.IT math.IT}
}