Active Jamming for Eavesdropping Prevention in Underwater Wireless Networks

To protect the Underwater Wireless Networks (UWNs) from eavesdroppers, conventional wisdom is to employ encryption algorithms. In this paper, we propose an encryption-less mechanism to protect the underwater network from eavesdropping. We utilize jamming signals as a countermeasure to eavesdropping and adopt a coordinated multi-point (CoMP) communication based method to protect the intended receiver. We present the basic design of the system and a quantitative analysis on the factors affecting the performance. The preliminary results indicate that our proposed method protects the network spanning large geographic area.