TY - GEN
T1 - Secrecy Enhancement for Multiple-Input Multiple-Output OFDM with Index Modulation
AU - Shen, Di
AU - Gao, Zhenzhen
AU - Liao, Xuewen
AU - Sun, Xiaodong
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In this paper, we consider the security issue of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing with index modulation (OFDM-IM) systems with a passive multiple-antenna eavesdropper. A physical-layer security scheme based on quadrature spatial modulation (QSM) and artificial noise (AN) is proposed to resist eavesdropping while maintaining the same receiver as the conventional OFDM-IM at the destination. By exploiting the structure of QSM, the generated OFDM-IM symbols are split into two orthogonal parts, and precoded ANs are injected into each part to produce combined symbols for transmission. Secrecy rate of the proposed secure MIMO OFDM-IM is derived and evaluated through numerical simulations. Compared to the existing secure OFDM-IM scheme, the proposed secure MIMO OFDM-IM shows better security against eavesdropping, especially when the eavesdropping channel is correlated to the legitimate channel.
AB - In this paper, we consider the security issue of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing with index modulation (OFDM-IM) systems with a passive multiple-antenna eavesdropper. A physical-layer security scheme based on quadrature spatial modulation (QSM) and artificial noise (AN) is proposed to resist eavesdropping while maintaining the same receiver as the conventional OFDM-IM at the destination. By exploiting the structure of QSM, the generated OFDM-IM symbols are split into two orthogonal parts, and precoded ANs are injected into each part to produce combined symbols for transmission. Secrecy rate of the proposed secure MIMO OFDM-IM is derived and evaluated through numerical simulations. Compared to the existing secure OFDM-IM scheme, the proposed secure MIMO OFDM-IM shows better security against eavesdropping, especially when the eavesdropping channel is correlated to the legitimate channel.
KW - Physical layer security
KW - index modulation
KW - multiple-input multiple-output
KW - orthogonal frequency division multiplexing
UR - https://www.scopus.com/pages/publications/85065023803
U2 - 10.1109/ICCS.2018.8689200
DO - 10.1109/ICCS.2018.8689200
M3 - 会议稿件
AN - SCOPUS:85065023803
T3 - 2018 IEEE International Conference on Communication Systems, ICCS 2018
SP - 142
EP - 146
BT - 2018 IEEE International Conference on Communication Systems, ICCS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE International Conference on Communication Systems, ICCS 2018
Y2 - 19 December 2018 through 21 December 2018
ER -