Definition
Different from the traditional communication security methods which provide data security by cryptographic techniques, physical layer security methods guarantee secure wireless transmissions by exploiting the imperfections of the communications medium (Yang et al. 2015). With physical layer security methods, communication security can be achieved by degrading the quality of signal reception at potential eavesdroppers and therefore preventing them from acquiring confidential information from the received signal. However, compared to microwave communications, severe path loss in millimeter wave (mmWave) makes it hard to support long-distance transmissions. Thanks to the short wavelength of mmWave, it is possible to employ a large number of antennas in a small size terminal. With the help of the large number of antennas, directional beamforming and multiple-antenna technologies, etc....
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Zhou, P., Xue, Q., Fang, X. (2018). Millimeter Wave Security. In: Shen, X., Lin, X., Zhang, K. (eds) Encyclopedia of Wireless Networks. Springer, Cham. https://doi.org/10.1007/978-3-319-32903-1_108-1
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DOI: https://doi.org/10.1007/978-3-319-32903-1_108-1
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