A new routing protocol with priority awareness for manet

Nowadays wireless networks are widely used for communication in several areas. Communication between wireless devices is possible either with infrastructure or without infrastructure. In ad hoc networks, which is without infrastructure, all nodes in a network can behave as a router if needed. Mobile ad hoc networks, where the nodes can be mobile, have many applications such as military areas, environmental information tracking, health applications, disaster situations, smart vehicles, unmanned aerial vehicles and smart home applications. Major problems encountered in ad hoc networks are node mobility and limited resources. The need for data to be delivered end-to-end quickly and with the least possible packet loss also attracts the attention of researchers. In emergency scenarios, communication can be limited or not possible due to problems occurred on infrastructures. Mobile ad hoc networks can be used in this kind of situation to provide continuous communication. Devices or living beings represented by nodes in an ad hoc network has to transmit messages immediately to the destination node in an emergency scenario. In this case, some nodes may need continuous active communication. In such cases, a priority-aware method may be preferred as a solution. A node without an urgent task has to choose the least active route amongst the route alternatives to not slow down or completely block active urgent data transmission. Thus, without affecting the important nodes' communication, other nodes can also communicate with each other. The study presented in this thesis proposes a new priority aware, AODV based routing protocol for mobile ad hoc networks in an emergency scenario. The proposed method has been tested using ns-3 simulation tool in various emergency scenarios and urgent flows achieve reduced end-to-end delays by 29.8% without causing starvation in the rest of the network.