Placement of Supportive Jammers for Secured Communication Protocol in Wireless Network

Jammers are placed in the network in order to block the eavesdropper's signals to the users. The physical layer should be prevented from the deceptive and random attacks possessed by the adversary nodes. The main objective is to provide secured information from the source to destination by placing cooperative jammer nodes. Reactive-Supportive jammers with selective relays are proposed for providing physical layer security. To reduce high computational complexity in the upper layer protocol stack security is provided in the physical layer. Based on receiving signal strength the signal to noise ratio is determined. Message encryption is done in the physical layer stack so that anonymous users cannot inject their false data in the original message. Here supportive jammers are used to hinder the eavesdropper from intercepting the exact message generated by the source.