In this paper we explore the network level architecture of distributed sensor systems that perform in-network processing. We propose a system with heterogeneous nodes that organizes into a hierarchical structure dictated by the computational capabilities. The presence of high-performance nodes amongst a sea of resource-constrained nodes exposes new tradeoffs for the efficient implementation of networkwide applications. Our experiments show that even for a low relative density of resource-constrained nodes to high-performance nodes
Ram Kumar, Vlasios Tsiatsis, Mani B. Srivastava