The bit error rate of MIMO systems aided by artificial noise

Wen Li; Huanhuan Song; Hong Wen; Ziyang Yu; Yonghuang Liu

doi:10.1117/12.3009298

11 October 2023 The bit error rate of MIMO systems aided by artificial noise

Wen Li, Huanhuan Song, Hong Wen, Ziyang Yu, Yonghuang Liu

Proceedings Volume 12918, Fourth International Conference on Computer Science and Communication Technology (ICCSCT 2023); 129180V (2023) https://doi.org/10.1117/12.3009298
Event: International Conference on Computer Science and Communication Technology (ICCSCT 2023), 2023, Wuhan, China

Abstract

This paper investigates the physical layer security in wireless communication networks, focusing on the scenario where a base station sends confidential messages to a legitimate node while facing potential eavesdropping. The study assumes that the channel state information for both authorized and unauthorized nodes is not available. To assess both security and reliability, the paper introduces the use of bit error rate (BER) as a quantifiable security metric. The objective of the research is to evaluate the security performance improvement of the system through BER. Specifically, the impact of artificial noise (AN) power allocation ratio, and the number of transceiver antennas on BER performance is characterized. The numerical results demonstrate that artificial noise is effective against unknown passive eavesdropping attacks and leads to significant performance gains. For instance, by transmitting artificial noise power at approximately 50% of the total power to deliberately impair the eavesdropper’s reception, the BER gap between intended and unauthorized users can reach 0.4.

Citation Download Citation

Wen Li, Huanhuan Song, Hong Wen, Ziyang Yu, and Yonghuang Liu "The bit error rate of MIMO systems aided by artificial noise", Proc. SPIE 12918, Fourth International Conference on Computer Science and Communication Technology (ICCSCT 2023), 129180V (11 October 2023); https://doi.org/10.1117/12.3009298

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