Improving the Energy Efficiency of Directed Diffusion Using Passive Clustering

Directed diffusion is a prominent example of data-centric routing based on application layer data and purely local interactions. In its functioning it relies heavily on network-wide flooding which is an expensive operation, specifically with respect to the scarce energy resources of nodes in wireless sensor networks (WSNs). One well-researched way to curb the flooding overhead is by clustering. Passive clustering is a recent proposal for on-demand creation and maintenance of the clustered structure, making it very attractive for WSNs and directed diffusion in particular. The contribution of this paper is the investigation of this combination: Is it feasible to execute directed diffusion on top of a sensor network where the topology is implicitly constructed by passive clustering? A simulation-based comparison between plain directed diffusion and one based on passive clustering shows that, depending on the scenario, passive clustering can significantly reduce the required energy while m...

• Type: Conference
• Year: 2004
• Where: EWSN
• Authors: Andreas Köpke, Christian Frank, Holger Karl, Vlado Handziski, Witold Drytkiewicz
• Keywords: Directed Diffusion, EWSN 2004, Passive Clustering, Plain Directed Diffusion, Wireless Networks