Secure Transmission Based on Differential Spatial Modulation with Artificial Noise

In this paper, we investigate the secure transmission based on differential spatial modulation with artificial noise in multiple-input single-output wiretap networks, where a cooperative jammer help the secure transmission between transceivers in the presence of a passive eavesdropper. We derive exact and asymptotic closed-form expressions for secrecy outage probability and effective secrecy throughput of the network. Finally, numerical simulations demonstrate that increasing the transmit power of transmitter or cooperative jammer can improve the secrecy performance of the system, but too large transmit power at transmitter or cooperative jammer is not helpful. Moreover, increasing the number of antennas at transmitter or cooperative jammer brings up better secrecy performance.

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