‘Mobile Ad hoc Networks’ (MANETs) properties present major vulnerabilities in security. Wireless ad hoc technology is demanding and continually growing. Its dynamics and flexibility allow the network to be easily set up without the requirement of a predetermined infrastructure. The advancement of the technology itself draws attentions from intruders as well as researchers and developers. In a multi-hop hop mobile ad hoc network (MANET), mobile belonging to the first category are either faulty and therefore nodes cooperate with each other without using any cannot follow a protocol, or are intentionally malicious and infrastructure such as access points or base stations. They try to attack the system. The problems created by these nodes nodes' mobility and fundamentally limited capacity of the need to be addressed at many layers, for example, using wireless medium, together with wireless transmission effects spread-spectrum encoding to avoid interference over the such as attenuation, multi-path propagation, and interference communication channel, using a reputation system to identify combine to pose significant challenges for security in the malicious system, and subsequently avoid or penalize MANETs. This kind of selfishness needs a comprehensive mechanism to cope with and we have planned to publish such mechanism in early future.

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Mobile ad hoc network (MANET) security wireless network Cooperation Reputation Selfishness Malice nodes