Rsearch of development in wireless sensor network routing protocols based on NS2

As an open source, architecture reasonable network simulation tool, NS2 has been widely used in wireless and wired network research. NS2 is fairly easy to use once you get to know the simulator, it is quite difficult for a first time user, because there are few user-friendly manuals. Even though there is a lot of documentation written by the developers which has in depth explanation of the simulator, it is written with the depth of a skilled NS user. Meanwhile, NS2 runs on Linux operating system and the difficulty of development, many beginners can do not know how to use it. The purpose of this paper is to give a new user some basic idea of how the simultor works, how to setup simulation networks. The paper introduced the principle, procedure, process and tool of NS2 through the example of develop the routing protocol of wireless sensor network. The difficulty and importance of routing protocol development are detailed.