A Cross Layered Architecture and Its Proposed Security Mechanism to Lessen Attacks Vulnerability in Mobile Ad Hoc Networks
A Mobile Ad Hoc NETwork (MANET) is a network that does not have underlying infrastructure. Hosts in MANET are connected by wireless links with multi-hop communication. The nodes in MANET themselves are responsible for dynamically discovering other nodes to communicate. Although the ongoing trend is to adopt ad hoc networks for commercial uses due to their certain unique properties, the main challenge is the vulnerability to security attacks. A number of challenges like open peer-to-peer network architecture, stringent resource constraints, shared wireless medium, dynamic network topology, etc. are posed in MANET. Besides, MANET's highly self-organized and self-maintained attributes increase its vulnerability to be attacked.