Contents I. Introduction
The mobile ad-hoc networks is considered a group of wireless mobile nodes that are capable of communicating with each other without the use of network infrastructure or any centralized administration. A MANET have a large number of potential applications like tactical networks, emergency services, commercial and civilian environments, home and enterprise networking, education, entertainment, sensor networks, context aware servicing and coverage extension [1]. There is a challenge in the design of ad hoc networks for dynamic routing protocols, not centrally administer, secure router, open peer to peer architecture and shared wireless medium. It communicates to each other using multi-hop wireless links. Each mobile node acts as a router and host in the networks. The wireless network gives wireless node an ability to communicate with the rest of the world while being mobile. The MANET has given a possibility to set up a network when needed. The transmission range of each low power node is limited to each other proximity. The out-of-range nodes are routed through intermediate nodes. Host provides information from/to other nodes and router discovers and maintains routes for other nodes in the networks.
