CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment

@article{Choi2016CFOAC,
  title={CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment},
  author={Jaehyung Choi and Jae-Hong Kwon and Young-Chai Ko},
  journal={2016 IEEE Conference on Standards for Communications and Networking (CSCN)},
  year={2016},
  pages={1-6}
}
In high mobility environment, the carrier frequency offset (CFO) introduced by Doppler shifts can severely degrade the system performance. On the other hand, orthogonal pilot sequence which is utilized in conventional frame structure for CFO and channel estimation induces large pilot resource consumption as the number of users increases, resulting in low… CONTINUE READING