Research Of Joint Routing Protocol In Wireless Sensor Networks Base On NS2

Wireless sensor network nodes in a large number of individual nodes with limited resources, network capacity to transmit data, the routing protocol directly affects the performance of the network's efficiency and life cycle, so for the wireless sensor network routing protocol design of the main objectives of focused on effective energy conservation, to extend the network life cycle and so on. Future wireless sensor network routing protocol in addition to efficient use of resources, should also be able to support its high degree of mobility, can be expanded, at the same time be able to have a certain QoS (Quality of Service) the ability of routing and security fully ensure that all the sensor nodes to work together well in a variety of applications to play a full role. Based on the analysis of the existing wireless sensor network routing protocol and the focus on the LEACH protocol of joint routing protocol LEACH-EVENT, the protocol by the two component sub-protocol. One event-based algorithm for clustering sub- protocol to consider the main application to meet the circumstances of the high data acquisition requirements of real-time processing and subset of the other transport protocol adaptive routing protocol takes into account the main course of data transmission characteristics of high energy consumption, by analyzing the energy consumption of cluster head nodes in the choice between the adaptive single-hop or multi-hop routing for data transmission, finally using network simulation platform NS2 for the validation protocol in wireless sensor network applications under performance. The main job of research and include the following:(1) Analysis of wireless sensor network architecture and features, as well as with the traditional distinction between networks. From the flat routing and hierarchical routing studied two aspects of some of the existing wireless sensor network routing protocol process and the scope of work, pointed out a number of problems in their proposed solutions.(2) in the full absorption of basic thought on LEACH protocol, the LEACH-based hybrid routing protocol to improve the LEACH-EVENT. At the same time for the wireless sensor network applications, data more vulnerable to sudden congestion caused by the characteristics of the node set, "the proportion of multi-media control approach.(3) using NS2 network simulation software platform to improve the protocol and "the proportion of multi-media control" in the application of network simulation, simulation results show that the protocol in energy consumption, the number of nodes and so on survival has advantages compared with LEACH.