Network Security: Attacks and Control in MANET

Introduction

As MANET is a core technology emerged in the new generation, the basic security challenges include seamless communication with reliability in the network. In a wireless network without any infrastructure where there is no base station and access point, the chance of vulnerability is more. The mobile devices are free to move in any direction still maintaining connectivity with other mobile nodes. Due to this special quality of MANET, the design of MANET protocol with high-security features in very much essential. Again, due to dynamic change in topology, the network change takes place dynamically and so the network is decentralized and more vulnerable than the wired based network in many aspects.

In a special network called MANET, electronic devices and gadgets such as tablets, PCs, mobile phones, machines with specially appointed correspondence capacity are connected together to make a system. MANET is a self-organizing structure of flexible switches related hosts associated with secluded connections. The routers move randomly and compose themselves accordingly; along these lines, the systems remote topology may change quickly and capriciously (Huang et al., 2014). In MANETs (Madan Mohan et al., 2013), each node acts as the router and because of dynamic changing topology the accessibility of hubs is not generally ensured (Ling et al., 2012). It likewise does not ensure that the way between any two hubs would be free of pernicious hubs. The remote connection between hubs is exceptionally vulnerable to connection assaults such as passive eavesdropping, active interfering, etc. (Sridhar et al., 2013). Due to inflexibility in the infrastructure of MANET, it affects the security feature whenever any kind of extreme computation is done to perform encryption. So due to this problem, it is important to build a secured connection which can provide the high-security solution to provide secured services like authentication, confidentiality, integrity, non-repudiation, and availability. So here security is provided in each and every layer (Madan Mohan et al., 2013).