QOS AWARE MULTIPATH PROTOCOL FOR MANETS

The recent advancements in wireless technology have led to tremendous progresses in Mobile Ad hoc Networks. A MANET is a dynamic wireless network formed by a set of mobile nodes which communicate with each other those who are within the transmission range of each node without any pre-existing infrastructure. The energy consumed by the mobile nodes is a critical issue in MANETs. The discharge of the battery causes many problems such as the damage of the packets and the re-initialization of route discovery which leads to bandwidth consumption, increase in delay and decrease in throughput. A new routing protocol should be designed based on power and QoS aware multipath routing (PQMR) for MANETs. The goal of such routing protocol is to find multiple paths which are more stable from a source to a destination node in terms of remaining life time of battery ,that satisfy Quality of Service (QoS) requirements, given in terms of delay and bandwidth. By using PQMR protocol multiple paths will be chosen between single source and destination using QoS constraints and energy levels to send packets reliably . NS2.34 will be considered for simulation. The proposed PQMR protocol is expected to show better throughput and packet delivery ratio as compared to other multipath protocols of MANETs.