On Robustness of Massive MIMO Systems against Passive Eavesdropping under Antenna Selection

Ali Bereyhi; Saba Asaad; Ralf R. Muller; Rafael F. Schaefer; Amir M. Rabiei

doi:10.1109/GLOCOM.2018.8647880

On Robustness of Massive MIMO Systems against Passive Eavesdropping under Antenna Selection

Ali Bereyhi, Saba Asaad, Ralf R. Muller, Rafael F. Schaefer, Amir M. Rabiei

Research output: Contribution to journal › Conference article › peer-review

12 Scopus citations

Abstract

In massive MIMO wiretap settings, the base station can significantly suppress eavesdroppers by narrow beamforming toward legitimate terminals. Numerical investigations show that by this approach, secrecy is obtained at no significant cost. We call this property of massive MIMO systems »secrecy for free» and show that it not only holds when all the transmit antennas at the base station are employed, but also when only a single antenna is set active. Using linear precoding, the information leakage to the eavesdroppers can be sufficiently diminished, when the total number of available transmit antennas at the base station grows large, even when only a fixed number of them are selected. This result indicates that passive eavesdropping has no significant impact on massive MIMO systems, regardless of the number of active transmit antennas.

Original language	English
Article number	8647880
Journal	Proceedings - IEEE Global Communications Conference, GLOBECOM
DOIs	https://doi.org/10.1109/GLOCOM.2018.8647880
State	Published - 2018
Externally published	Yes
Event	2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates Duration: 9 Dec 2018 → 13 Dec 2018

Keywords

Massive MIMO systems
antenna selection
physical layer security

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10.1109/GLOCOM.2018.8647880

Cite this

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title = "On Robustness of Massive MIMO Systems against Passive Eavesdropping under Antenna Selection",

abstract = "In massive MIMO wiretap settings, the base station can significantly suppress eavesdroppers by narrow beamforming toward legitimate terminals. Numerical investigations show that by this approach, secrecy is obtained at no significant cost. We call this property of massive MIMO systems »secrecy for free» and show that it not only holds when all the transmit antennas at the base station are employed, but also when only a single antenna is set active. Using linear precoding, the information leakage to the eavesdroppers can be sufficiently diminished, when the total number of available transmit antennas at the base station grows large, even when only a fixed number of them are selected. This result indicates that passive eavesdropping has no significant impact on massive MIMO systems, regardless of the number of active transmit antennas.",

keywords = "Massive MIMO systems, antenna selection, physical layer security",

author = "Ali Bereyhi and Saba Asaad and Muller, {Ralf R.} and Schaefer, {Rafael F.} and Rabiei, {Amir M.}",

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AU - Asaad, Saba

AU - Muller, Ralf R.

AU - Schaefer, Rafael F.

AU - Rabiei, Amir M.

PY - 2018

Y1 - 2018

N2 - In massive MIMO wiretap settings, the base station can significantly suppress eavesdroppers by narrow beamforming toward legitimate terminals. Numerical investigations show that by this approach, secrecy is obtained at no significant cost. We call this property of massive MIMO systems »secrecy for free» and show that it not only holds when all the transmit antennas at the base station are employed, but also when only a single antenna is set active. Using linear precoding, the information leakage to the eavesdroppers can be sufficiently diminished, when the total number of available transmit antennas at the base station grows large, even when only a fixed number of them are selected. This result indicates that passive eavesdropping has no significant impact on massive MIMO systems, regardless of the number of active transmit antennas.

AB - In massive MIMO wiretap settings, the base station can significantly suppress eavesdroppers by narrow beamforming toward legitimate terminals. Numerical investigations show that by this approach, secrecy is obtained at no significant cost. We call this property of massive MIMO systems »secrecy for free» and show that it not only holds when all the transmit antennas at the base station are employed, but also when only a single antenna is set active. Using linear precoding, the information leakage to the eavesdroppers can be sufficiently diminished, when the total number of available transmit antennas at the base station grows large, even when only a fixed number of them are selected. This result indicates that passive eavesdropping has no significant impact on massive MIMO systems, regardless of the number of active transmit antennas.

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On Robustness of Massive MIMO Systems against Passive Eavesdropping under Antenna Selection

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Keywords

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