Waveform Design for Space–Time Coded MIMO Systems with High Secrecy Protection

Electronics

Pingping Shang¹  Hyein Lee¹  Sooyoung Kim¹ 

[1] IT Convergence Research Center, Division of Electronics Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, Korea;

关键词: multi-input-multi-output (MIMO);    space time block coding;    physical layer security (PLS);    secrecy capacity;   

DOI  :  10.3390/electronics9122003

来源: DOAJ

【 摘 要 】

In this paper, we present a new secrecy-enhancing scheme for multi-input-multi-output (MIMO) systems using a space–time coding scheme. We adopt a quasi-orthogonal space–time block coding (QO-STBC) scheme that was originally designed to improve the performance of the MIMO system, and propose an efficient waveform design that can enhance the secrecy, as well as improve the error rate performance. Channel- and signal-dependent artificial interference (AI) is added to the proposed waveform, so that only a legitimate receiver can successfully retrieve information. We investigate the secrecy capacity of the proposed scheme, and demonstrate that the proposed scheme provides highly enhanced secrecy performance, compared to the conventional schemes. The performance simulation results reveal that the transmitted information can be properly extracted only at the legitimate receiver.

【 授权许可】

Unknown