Optimal Transmit Antenna Selection for Massive MIMO Wiretap Channels

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Asaad S, Bereyhi A, Rabiei AM, Müller R, Schaefer RF
Zeitschrift: IEEE Journal on Selected Areas in Communications
Jahr der Veröffentlichung: 2018
Band: 36
Heftnummer: 4
Seitenbereich: 817 - 828
ISSN: 0733-8716


Abstract

In this paper, we study the impacts of transmit antenna selection on the
secrecy performance of massive MIMO systems. We consider a wiretap setting in
which a fixed number of transmit antennas are selected and then confidential
messages are transmitted over them to a multi-antenna legitimate receiver while
being overheard by a multi-antenna eavesdropper. For this setup, we derive an
accurate approximation of the instantaneous secrecy rate. Using this
approximation, it is shown that in some wiretap settings under antenna
selection the growth in the number of active antennas enhances the secrecy
performance of the system up to some optimal number and degrades it when this
optimal number is surpassed. This observation demonstrates that antenna
selection in some massive MIMO settings not only reduces the RF-complexity, but
also enhances the secrecy performance. We then consider various scenarios and
derive the optimal number of active antennas analytically using our
large-system approximation. Numerical investigations show an accurate match
between simulations and the analytic results.


FAU-Autoren / FAU-Herausgeber

Asaad, Saba
Lehrstuhl für Digitale Übertragung
Bereyhi, Ali
Lehrstuhl für Digitale Übertragung
Müller, Ralf Prof. Dr.-Ing.
Professur für Informationsübertragung


Autor(en) der externen Einrichtung(en)
Technische Universität Berlin
University of Tehran


Zitierweisen

APA:
Asaad, S., Bereyhi, A., Rabiei, A.M., Müller, R., & Schaefer, R.F. (2018). Optimal Transmit Antenna Selection for Massive MIMO Wiretap Channels. IEEE Journal on Selected Areas in Communications, 36(4), 817 - 828. https://dx.doi.org/10.1109/JSAC.2018.2825159

MLA:
Asaad, Saba, et al. "Optimal Transmit Antenna Selection for Massive MIMO Wiretap Channels." IEEE Journal on Selected Areas in Communications 36.4 (2018): 817 - 828.

BibTeX: 

Zuletzt aktualisiert 2018-22-09 um 15:08