An energy efficient intrusion detection system in MANET for secure routing and clustering

Abstract

Security is a primary concerns when protected communication between mobile nodes in a averse environment is the requirement. MANETs are more susceptible to be attacked as compared to the wired networks. These vulnerabilities are due to the operating principles of the MANET which can not be changed. Securing MANET is equally important as securing fixed wired networks. Certain level of security can be obtained form the existing solutions. However, these solutions are not always necessarily suitable for wireless networks. Several intrusion detection techniques that have been developed for fixed wired network cannot be applied in this new environment. Further, energy is also one of the major issues in MANET as the battery life of the network nodes is limited and once discharged these nodes can not be charged again. Energy plays a vital role in determining the reliability of the network as the lifetime of the network highly depends on the energy status of the nodes in the network. Here we have designed a method to incorporate both these factors i.e., security and energy in order to make the network more reliable and secure. We have merged the IDS with the AODV routing protocol such that there is not need to deploy a separate IDS part on each node. Using a separate IDS take considerable amount of processing power of the nodes as well as consumes energy. Thus, by merging the IDS with the routing algorithm itself we are able to decrease the energy consumption at each node which enhances the lifetime of the entire network. Finally we have applied clustering in order to provide stability to out ad hoc network so that the path determination can be made faster and effective