Performance analysis and optimization of secure generalized spatial modulation

Niu, Hong, Lei, Xia, Xiao, Yue, Li, You, and Xiang, Wei (2020) Performance analysis and optimization of secure generalized spatial modulation. IEEE Transactions on Communications, 68 (7). pp. 4451-4460.

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Artificial noise (AN) is considered as a new physical layer technology to improve the security of wireless systems. In this paper, we investigate secure transmission of AN-aided generalized spatial modulation (GSM), which maintains the same hardware requirements at the transmitter as the conventional GSM. In order to further improve the jamming intensity of conventional AN scheme, we propose an Euclidean distance optimized AN (ED-AN) scheme by minimizing the Euclidean distance between the transmit signal and the jamming signal, which also avoids the power waste of conventional AN scheme. The secrecy capacities of both the AN-GSM and EDAN-GSM schemes are analyzed, and the optimal power allocation of AN-GSM is further investigated by maximizing the secrecy capacity. Furthermore, the upper bounds of the theoretical bit error rates (BERs) of both the legitimate receiver and the illegal eavesdropper over the Rayleigh fading channel are derived. Simulation results validate our derived analysis and demonstrate that the ED-AN scheme offers better secrecy and BER performance.

Item ID: 64051
Item Type: Article (Research - C1)
ISSN: 1558-0857
Keywords: GSM, Transmitting antennas, Modulation, Security, Hardware, Jamming, Artificial noise (AN), physical layer security, generalized spatial modulation (GSM), Euclidean distance (ED), secrecy capacity, bit error rate (BER)
Copyright Information: © 2020 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.
Funders: National Science Foundation of China (NSFC), National Key R&D Program of China (NKRDPC), Fundamental Research Funds for the Central Universities of China (FRFCU)
Projects and Grants: NSFC Grant number 61671131, NKRDPC No. 2018YFC0807101, FRFCU No. ZYGX2018J092
Date Deposited: 12 Aug 2020 07:46
FoR Codes: 40 ENGINEERING > 4006 Communications engineering > 400608 Wireless communication systems and technologies (incl. microwave and millimetrewave) @ 100%
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