Large-Scale MIMO Secure Transmission with Finite Alphabet Inputs

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

Publication Language: English

Publication Type: Conference contribution

Publication year: 2017

Event location: Singapore SG

ISBN: 978-1-5090-5019-2

DOI: 10.1109/GLOCOM.2017.8254814

Abstract

In this paper, we investigate secure transmission over the large-scale multiple-antenna wiretap channel with finite alphabet inputs. First, 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 (SNR) 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 in \cite{Wu2012TVT} while the resulting performance loss is minimal. 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 to the GSVD design.

Authors with CRIS profile

Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Shanghai Jiao Tong University / 上海交通大学 CN China (CN) Nantong University / 南通大学 CN China (CN) Lehigh University US United States (USA) (US) Southeast University / 东南大学 CN China (CN)

How to cite

APA:

Wu, Y., Wang, J.-B., Wang, J., Schober, R., & Xiao, C. (2017). Large-Scale MIMO Secure Transmission with Finite Alphabet Inputs. In IEEE (Eds.), . Singapore, SG.

MLA:

Wu, Yongpeng, et al. "Large-Scale MIMO Secure Transmission with Finite Alphabet Inputs." Singapore Ed. IEEE, 2017.

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