International Journal of Computer Networks and Wireless Communications (IJCNWC)
Security provision is one of the major challenge in Mobile Ad-hoc Networks. In this paper, the authors provide security in MANETs using cross layer technology. In this paper, they create a MANET with different nodes having different transmitting and receiving powers. They set threshold values for transmitting and receiving powers. If the transmitting or receiving power of a node doesn't match the threshold value they identify it as malicious node and isolate corresponding nodes from the network. Finally the packets should get forward only through the nodes which are satisfying the threshold limit. The proposed method helps in detection and isolation of malicious node based on transmitting and receiving powers.