Multipath QoS Routing for Traffic Splitting in MANETs

Mobile ad hoc networks (MANETs) are characterized by its dynamic topology which has limited channel bandwidth and limited power at the nodes. Because of these characteristics in the MANETs the paths connecting source nodes with destinations may be very unstable and go down at any time, making communication over mobile ad hoc networks difficult. To overcome these issues, in this paper, we propose a Multipath QoS Routing protocol for traffic splitting in MANET. In this protocol, initially multiple disjoint paths are discovered and the data packets are transmitted through the path which satisfies the routing constraints based on bandwidth, delay and path stability. If the path does not satisfy the routing constraints, then the traffic can be distributed along the multiple disjoint paths, using the Traffic Splitting algorithm. By simulation results, we show that the proposed protocol reduces the packet drop and delay with improved throughput.