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- W2995598746 abstract "In this paper, we propose a new discriminatory channel estimation (DCE) scheme to combat active eavesdropping in multiple-input multiple-output (MIMO) decode-and-forward (DF) relay systems. In particular, through cooperative jamming (CJ) and artificial noise (AN) insertion, the discrimination between channel state information (CSI) at the active eavesdropper (Eve) and legitimate users (LUs) can be well ensured. To characterize the performance of the proposed DCE scheme, the closed-form expressions of normalized mean squared error (NMSE) of estimation for both legitimate channel and wiretap channel have been derived. In addition, the power allocation between pilot and AN during channel estimation phase is optimized to further enlarge the CSI discrimination. Simulation results validate the effectiveness of the proposed scheme to achieve a higher secrecy performance, even with an active Eve." @default.
- W2995598746 created "2019-12-26" @default.
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- W2995598746 date "2019-10-01" @default.
- W2995598746 modified "2023-09-26" @default.
- W2995598746 title "Discriminatory Channel Estimation in MIMO Relay Systems against Active Eavesdropper" @default.
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- W2995598746 doi "https://doi.org/10.1109/wcsp.2019.8927873" @default.
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