Mobile wireless networks consist of a set of cooperative and mobile nodes, each node can move randomly at a specific speed in all directions without any control of a central manager. This type of networks has become a hot research topic due to its military application and suitability for emergencies and natural disasters. Due to the lack of fixed infrastructure, the routing process becomes the major problem in this type of networks, where the responsibility of routing is transferred to each node. Over the last few years, a number of traditional routing protocols has been proposed, but these protocols do not support quality of service in different environments. Some studies have improved some of these protocols to support quality of service for specific environments. This research identifies and analysis some of these improved protocols.