Multi-constrained reliable multicast routing protocol for MANETs

Mobile ad hoc network (MANET) is a distributed wireless network with highly dynamic topology. So, the nodes keep moving in and out of the network instantly and a path formed between two distant nodes through several intermediate nodes cannot be maintained for long duration of time. But, the availability of the link between any two nodes can be predicted up to the certain extent based on specific constraints such as the available bandwidth, available power and delay etc. Even then the guaranteed data delivery through the path cannot be made. Therefore, reliable multicast routing in MANET is very challenging problem. This paper proposed a multi-constrained reliable multicast routing protocol (MRMRP) using network coding. This technique initially builds the stable path between the desired distant for data transmission and then uses network coding for recovery of any packet that is lost during data transmission. We demonstrate through simulation results, that the proposed scheme shows its better performance compared to other methods. The simulation results show that the MRMRP increases the packet delivery ratio by reducing the packet drop ratio and control overhead as compared to multicast ad hoc on demand routing protocol (MAODV) and dynamic general coding Scheme (DGC).