A new clustered Directed Diffusion Algorithm based on credit of nodes for wireless sensor networks

for data gathering in wireless sensor network, sensors extract useful information from environment; this information has to be routed through several intermediate nodes to reach the destination. How information can effectively disseminate to the destination is one of the most important tasks in sensor networks. Due to limited power and slow processor in each node, algorithms of sensor networks must be designed carefully. Directed Diffusion (DD) is typical data-centric algorithm has been used to provide efficient data transmission. We enhance this algorithm by clustering all nodes into clusters and select a few nodes as cluster head according to their credits. This credit is computed at each node by considering three factors. Simulation results show that our proposed algorithm is more energy efficient than DD and has the ability of traffic load distribution.

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