Impact of network density on data aggregation in wireless sensor networks

In-network data aggregation is essential for wireless sensor networks where energy resources are limited. In a previously proposed data dissemination scheme (directed diffusion with opportunistic aggregation), data is opportunistically aggregated at intermediate nodes on a low-latency tree. In this...

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Bibliographic Details
Main Authors: Intanagonwiwat, C., Estrin, D., Govindan, R., Heidemann, J.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Costs
Delay
Energy consumption
Energy efficiency
Energy resources
Exact sciences and technology
Intelligent networks
Intersymbol interference
Large-scale systems
Robustness
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Wireless sensor networks
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Summary:In-network data aggregation is essential for wireless sensor networks where energy resources are limited. In a previously proposed data dissemination scheme (directed diffusion with opportunistic aggregation), data is opportunistically aggregated at intermediate nodes on a low-latency tree. In this paper, we explore and evaluate greedy aggregation, a novel approach that adjusts aggregation points to increase the amount of path sharing, reducing energy consumption. Our preliminary results suggest that, under investigated scenarios, greedy aggregation can achieve up to 45% energy savings over opportunistic aggregation in high-density networks without adversely impacting latency or robustness.
ISSN:1063-6927
2575-8411
DOI:10.1109/ICDCS.2002.1022289