D2D underlay massive MIMO hybrid networks with improved physical layer secrecy and energy efficiency

Abstract

For us to meet the green and reliable communication requirement by the forthcoming fifth generation mobile networks, this paper focuses on a secrecy constrained device-to-device (D2D) underlay massive multiple-input multiple-output hybrid network, where the D2D user (DU) and cellular user (CU) links are exposed to passive malicious eavesdroppers. The D2D transmitters harvest the power from the signals of dedicated power beacons (PBs), but also the ambient radio frequency (RF) interference of CUs. The signals of PBs are known previously at the receivers of both the D2D and cellular users but are not known at eavesdroppers so that it can be regarded as an artificial noise. For the interested hybrid networks, we first present an energyharvesting scheme based on the inversion power control where the power received at the corresponding receiver is higher than the receiver's sensitivity. Then, by modeling the locations of network elements as Poisson point process and applying stochastic geometry, we derive the sufficient probability that a typical D2D transmitter harvests sufficient energy to establish communication links. Finally, with the derived sufficient probability, we evaluate the performance of the CUs and DUs in the achievable ergodic rate and the secrecy outage probability. Both the analytical and simulated results show that precious power of network is saved because of the ambient RF interference exploited, and the secrecy of both D2D and cellular links is improved simultaneously because of the signal of PBs modeled as artificial noises at CUs and DUs.

Better spectral efficiency of device to device underlying massive multi‐input multi‐output using receiver filter algorithm and power control model

“…Also, the received degrees of freedom either increased the power of the cellular and D2D desired signal or suppress the D2D-to-cellular and CDIs. Also, authors in Lin et al 19 and Jia et al 20 concentrated on revenue uplink D2D underlying massive MIMO networks. In other studies, [21][22][23][24] in order to handle the interference mitigation and power resource management, power control has been introduced in the D2D underlying cellular networks.…”