Secure Transmission With Large Numbers of Antennas and Finite Alphabet Inputs

Wu Y, Wang JB, Wang J, Schober R, Xiao C (2017)

Publication Language: English

Publication Type: Journal article

Publication year: 2017

Journal

IEEE Transactions on Communications Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 65

Pages Range: 3614 - 3628

Journal Issue: 8

DOI: 10.1109/TCOMM.2017.2703654

Abstract

In this paper, we investigate secure transmission over the large-scale multiple-antenna wiretap channel with finite alphabet inputs. First, we investigate the case where instantaneous channel state information (CSI) of the eavesdropper is known at the transmitter. We show analytically that a generalized singular value decomposition (GSVD)-based design, which is optimal for Gaussian inputs, may exhibit a severe performance loss for finite alphabet inputs in the high signal-to-noise ratio regime. In light of this, we propose a novel Per-Group-GSVD (PG-GSVD) design, which can effectively compensate the performance loss caused by the GSVD design. More importantly, the computational complexity of the PG-GSVD design is by orders of magnitude lower than that of the existing design for finite alphabet inputs while the resulting performance loss is minimal. Then, we extend the PG-GSVD design to the case where only statistical CSI of the eavesdropper is available at the transmitter. Numerical results indicate that the proposed PG-GSVD design can be efficiently implemented in large-scale multiple-antenna systems and achieves significant performance gains compared with the GSVD design.

Authors with CRIS profile

Yongpeng Wu Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Lehigh University US United States (USA) (US) Southeast University / 东南大学 CN China (CN) Nantong University / 南通大学 CN China (CN)

How to cite

APA:

Wu, Y., Wang, J.-B., Wang, J., Schober, R., & Xiao, C. (2017). Secure Transmission With Large Numbers of Antennas and Finite Alphabet Inputs. IEEE Transactions on Communications, 65(8), 3614 - 3628. https://dx.doi.org/10.1109/TCOMM.2017.2703654

MLA:

Wu, Yongpeng, et al. "Secure Transmission With Large Numbers of Antennas and Finite Alphabet Inputs." IEEE Transactions on Communications 65.8 (2017): 3614 - 3628.

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