Fig. 1
From: A novel jammer detection framework for cluster-based wireless sensor networks
Wireless sensor network with a jammer node. The node in black box indicates CH, the nodes without box specify CMs, and the red node represents the jammer node. The line indicates a communication between CH and CM. The arrow denotes communication between CHs and BS. The CH21and members 1 to 5, CH22 and members 6–10, CH23 and members 11–15, and CH24 and members 16–20 are divided into four clusters, respectively. The nodes with colored box indicate jammed members