Simulation of energy efficilent data dissemination in wireless sensor networks

In this paper we present the simulation-based performance evaluation and tuning of data dissemination in wireless sensor networks. The simulation uses directed diffusion protocol for query and data dissemination. The implementation is done in Java using eclipse. The simulation includes four phases: interest propagation, gradient establishment, data propagation, and reinforcement of path establishment and truncation. The objectives of protocol tuning include: a) reduced energy consumption, and b) the selection of the best path to send the data back from the event source to the sink. The simulation design is scalable and reusable; the same set of classes can be extended for the simulation of other protocols