@article{ma2021fedsa,
  title={FedSA: A semi-asynchronous federated learning mechanism in heterogeneous edge computing},
  author={Ma, Qianpiao and Xu, Yang and Xu, Hongli and Jiang, Zhida and Huang, Liusheng and Huang, He},
  journal={IEEE Journal on Selected Areas in Communications},
  volume={39},
  number={12},
  pages={3654--3672},
  year={2021},
  publisher={IEEE}
}