Abstract
This letter proposes a new efficient yet simple distributed ordered-based jamming scheme for securing a legitimate transmission and powering a wireless receiver equipped with a nonlinear energy harvester. A legitimate source node (Alice) communicates with one legitimate receive node (Bob) and one legitimate radio-frequency energy-harvesting node (Dana) in the presence of an eavesdropping node (Eve). A set of cooperative nodes (Jims) are deployed in the network to power Dana and secure the legitimate transmissions by jamming Eve. In each time slot, only one Jim is selected. Our proposed scheme does not require the instantaneous channel state information (CSI) of Eve’s links or the global CSI of the legitimate nodes at a legitimate central unit. The numerical results demonstrate that our scheme achieves higher average secrecy throughput than that achieved by the best-jammer scheme.
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