A novel security method in wireless network based on percolation

Wireless security mechanism directly based on the physical layer is applied to achieve the desired safety performance in the wireless network environment. Security model in physical layer of wireless network based on percolation theory is built around the small world model and percolation theory. The model adopts rate-less code in channel coding scheme and selects the belief propagation algorithm as decoding method in receiver. The work mechanism of percolation, meanwhile, is studied. The result shows that the model can guarantee the communication reliability and validity, at the same time, improve the communication security in physical layer effectively.