A Method for Selecting Jamming Nodes Considering SINR to Prevent Eavesdropping in Wireless Networks

In wireless networks, transmitted data packets from a sender node are broadcasted in a specific area around the node. Therefore, not only receiver nodes but also eavesdropper nodes can receive data packets from sender nodes. In this paper, we propose a method for preventing eavesdropping in wireless networks. In the proposed method, some nodes neighboring sender nodes transmit jamming signals to reduce the area in which data packets from sender nodes can be received while still allowing receiver nodes to receive data packets. Jamming nodes are selected in a heuristic manner. Simulation evaluations using comparative methods confirm that performance of the proposed method exceeds that of an alternative method.