Research In Motion
Mobile Ad hoc NETworks (MANET) are characterized by multi-hop wireless mobile nodes that communicate with each other without centralized control or established infrastructure. There are various challenges in MANET such as routing, dynamic topology, scalability, bandwidth optimization. But the major challenge in MANET is link failure due to high mobility. Topology-Based routing protocols become unsuitable for MANET when the nodes are highly mobile and topology changes dynamically. Geographic routing protocols are regarded as efficient and scalable when mobility is high.