Research on directed diffusion routing protocol in wireless sensor networks

Abstract

In order to bring the potential advantages of directed diffusion routing into full play in wireless sensor networks, the traditional MHR protocol was improved, and the MLN protocol was presented. By decreasing the gradient level width of directed diffusion gradient field, the connectivity of network would be enhanced, so that the reliability of data aggregation would be improved. At the same time, by changing the data-packet forwarding rule of hop-by-hop in MHR networks to the rule of lowest-hop-forwarding in MLN networks, the real-time performance and energy efficiency of data aggregation would be improved on the premise of high data aggregating reliability. The theoretical analysis and simulation results validated that the MLN protocol would not only enhance the connectivity but also improve the comprehensive performances of the directed diffusion routing protocol greatly in wireless sensor networks.

Analysis and Improvement on Routing Protocols for Wireless Sensor Networks

“…Most of which have been applied in reality [6]. Real analyses show that the routing protocol can be classified into four main categories: data-centric routing protocols, cluster-based routing protocols, location-based routing protocols and energy-aware routing protocols [7] [8].…”

Energy efficient routing in multi-level LEACH for WSNs

“…Directed diffusion is carried out generally when information is required from a particular location in the network [12], [13]. The sink floods a query into the network which reaches the specific node [14].…”