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In this paper we consider a two-tier heterogeneous network (HetNet) where pico base stations (BSs) can harvest energy from macro BSs. Three cases of special interests are investigated, i.e., pico BSs are deployed 1) without battery and power grid, 2) with power grid, and 3) with battery. In particular, a practical dual-slope path loss model is employed to facilitate the performance analysis. By means...
In this paper, we investigate secure simultaneous wireless information and power transfer (SWIPT) in a two-tier downlink heterogeneous network (HetNet), wherein the ambient interference signals are exploited for both secure communications and wireless energy harvesting. We assume one macrocell base station (MBS) and several femtocell base stations (FBSs) simultaneously send information to their macrocell...
The relay-aided multicast network is considered, where an $N_{T}$ -antenna source multicasts confidential messages to $N$ single-antenna legitimate users via a self-sustainable $M$-antenna regenerative relay. In particular, the relay is powered by the energy harvested from the radio signal of the source, and there are $K$ unauthorized eavesdroppers wiretapping the channel. Assuming the knowledge...
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