tailieunhanh - Security for two-way untrusted relay against constant and reactive jamming with fixed signals

In this paper, we propose a novel method to estimate and remove the jamming signals from multiple multi-antenna jammers in a two-way relay network with multi-antenna legitimate and relay nodes. We carefully consider the signals in the time slots in order to exploit the repetition of the signals and design the transmitted signals which can work in different cases. The numerical results show that the secrecy rate at the legitimate nodes of the proposed scheme is higher than that of the conventional method when considering the affect of transmit signal-to-noise ratio (SNR); the number antennas at the legitimate . |

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