AN IMPROVED MULTIPATH DHT BASED ROUTING PROTOCOL FOR MOBILE AD-HOC NETWORKS

Mobile Ad-hoc networking is a concept in computer communications, which means that users wanting to communicate with each other form a temporary network, without any form of centralized administration. Each node participating in the network acts both as host and a router and must therefore is willing to forward packets for other nodes. For this purpose, a routing protocol is needed. Forwarding packets through MANET's dynamic changing network is a challenging issue. Most existing MANET protocols are suggested by considering different scenarios of mobile nodes of MANET which function properly in an optimistic manner. We investigated the single and multipath routing protocols based on QoS. The Single Path Reactive Routing Protocol AODV and Multipath reactive routing protocols AOMDV were analyzed the QoS performance of MANETs. Then DHT based routing protocol called MDART was implemented in ns-2. Performance of proposed protocol was analyzed and compared with multipath routing protocol AOMDV and table driven routing protocol DSDV.