Priority Queue Based Path Selection Using Pqmr Protocol in Manet

MANET (Mobile Ad hoc Network) comprises of several mobile nodes connected by wireless links that creates this network as self-configuring and is also called as Mobile Mesh Networks. The Ad hoc networks are a novel wireless networking prototype for mobile nodes and compared with traditional networks it does not possess any existing or fixed network infrastructure. Rather the mobile nodes rely on each other to prevent the connection of the network. In mobile ad hoc networks, the mobile nodes communicate with the distant destinations by employing intermediate nodes. Sending multiple copies of packets to multiple destination nodes is known as Multicast routing which is a key concept in MANET in which efficient routing is a major problem. In order to overcome this we proposed Priority Queue based Multipath Routing (PQMR) protocol in which each path contains a priority queue and at first it allows to transmit the packet that has highest priority among other packets and by the way we can avoid or reduce the traffic and delay as well. When the packets are dropped due to channel noise or the condition of full queue or due to congestion it chooses the alternate path in a frequent manner. Hence, the efficiency and throughput are increased. Key Terms: MANET, multi hop, multicast and PQMR,Congestion.