References

[1] Fettweis G, Alamouti S. 5G: Personal mobile internet beyond what cellular did to telephony. IEEE Commun Mag, 2014, 52: 140-145 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=5G: Personal mobile internet beyond what cellular did to telephony&author=Fettweis G&author=Alamouti S&publication_year=2014&journal=IEEE Commun Mag&volume=52&pages=140-145

[2] Ji X, Huang K, Jin L. Overview of 5G security technology. Sci China Inf Sci, 2018, 61: 081301 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Overview of 5G security technology&author=Ji X&author=Huang K&author=Jin L&publication_year=2018&journal=Sci China Inf Sci&volume=61&pages=081301

[3] Xiao Z, Xia P, Xia X. Enabling UAV cellular with millimeter-wave communication: potentials and approaches. IEEE Commun Mag, 2016, 54: 66-73 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Enabling UAV cellular with millimeter-wave communication: potentials and approaches&author=Xiao Z&author=Xia P&author=Xia X&publication_year=2016&journal=IEEE Commun Mag&volume=54&pages=66-73

[4] Lu Z, Sun L, Zhang S. Optimal power allocation for secure directional modulation networks with a full-duplex UAV user. Sci China Inf Sci, 2019, 62: 080304 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Optimal power allocation for secure directional modulation networks with a full-duplex UAV user&author=Lu Z&author=Sun L&author=Zhang S&publication_year=2019&journal=Sci China Inf Sci&volume=62&pages=080304

[5] Tedesco F, Casavola A, Fedele G. Unbiased Estimation of Sinusoidal Signal Parameters via Discrete-Time Frequency-Locked-Loop Filters. IEEE Trans Automat Contr, 2017, 62: 1484-1490 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Unbiased Estimation of Sinusoidal Signal Parameters via Discrete-Time Frequency-Locked-Loop Filters&author=Tedesco F&author=Casavola A&author=Fedele G&publication_year=2017&journal=IEEE Trans Automat Contr&volume=62&pages=1484-1490

[6] Song J, Zhang J Y, Dai L. Parameter estimation and coherence performance of distributed aperture coherent radar based on phase synchronization (in Chinese). Sci Sin Inform, 2015, 45: 668-684 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Parameter estimation and coherence performance of distributed aperture coherent radar based on phase synchronization (in Chinese)&author=Song J&author=Zhang J Y&author=Dai L&publication_year=2015&journal=Sci Sin Inform&volume=45&pages=668-684

[7] Zibar D, de Carvalho L H H, Estaran J. Joint Iterative Carrier Synchronization and Signal Detection Employing Expectation Maximization. J Lightwave Technol, 2014, 32: 1608-1615 CrossRef ADS Google Scholar http://scholar.google.com/scholar_lookup?title=Joint Iterative Carrier Synchronization and Signal Detection Employing Expectation Maximization&author=Zibar D&author=de Carvalho L H H&author=Estaran J&publication_year=2014&journal=J Lightwave Technol&volume=32&pages=1608-1615

[8] Mueller K, Muller M. Timing Recovery in Digital Synchronous Data Receivers. IEEE Trans Commun, 1976, 24: 516-531 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Timing Recovery in Digital Synchronous Data Receivers&author=Mueller K&author=Muller M&publication_year=1976&journal=IEEE Trans Commun&volume=24&pages=516-531

[9] Maeng S J, Park H, Cho Y S. Preamble Design Technique for GMSK-Based Beamforming System With Multiple Unmanned Aircraft Vehicles. IEEE Trans Veh Technol, 2017, 66: 7098-7113 CrossRef Google Scholar http://scholar.google.com/scholar_lookup?title=Preamble Design Technique for GMSK-Based Beamforming System With Multiple Unmanned Aircraft Vehicles&author=Maeng S J&author=Park H&author=Cho Y S&publication_year=2017&journal=IEEE Trans Veh Technol&volume=66&pages=7098-7113