A Survey on Game Theory Approaches for Improving Security in MANET

The MANET is the most widely used networks due to the usage of wide range of multimedia applications over the wireless networks. One of the main features of nodes in mobile ad hoc networks (MANETs) is their collaboration with neighbors to propagate data. Exploiting this feature, malicious nodes collaborate with normal nodes to disturb network operation and reduce its efficiency. These nodes attack other network nodes and avoid being detected by other nodes through using the mobility characteristic of nodes in MANETs. Because of the infrastructure less network, battery constraint and the non-cooperative environment it is difficult to provide security to the network. Some nodes try to save their energy and start to exhibit malicious activities like dropping the packet by not forwarding etc. Due to such security problems in the network, the routing also becomes inefficient. Hence to improve the routing efficiency along with security, several techniques have been used so far. One of the effective ways to detect malicious nodes is using game theory. In this work, several such routing techniques have been compared and analyzed and a survey has been made. The different kinds of security attacks have been analyzed and the proposed solutions have been tabulated in this survey.