John Heidemann

Impact of Network Density on Data Aggregation in Wireless Sensor Networks

TitleImpact of Network Density on Data Aggregation in Wireless Sensor Networks
Publication TypeConference Paper
Year of Publication2002
AuthorsC. Intanagonwiwat, D. Estrin, R. Govindan, and J. Heidemann
Date Publishedjul
Conference LocationVienna, Austria
Abstract

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

URLhttp://www.isi.edu/%7ejohnh/PAPERS/Intanagonwiwat02a.html
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