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Journal of Applied Mathematics
Volume 2013, Article ID 502381, 12 pages
Research Article

Layer-Based Data Aggregation and Performance Analysis in Wireless Sensor Networks

1College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350108, China
2School of Computer Science, Colorado Technical University, Colorado, CO 80907, USA

Received 3 June 2013; Accepted 24 July 2013

Academic Editor: Bin Wang

Copyright © 2013 Hongju Cheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Due to the similarity and correlation among sensed data in wireless sensor network, it is an important way to reduce the number of packets transmitted with data aggregation technology so as to prolong the network lifetime. However, data aggregation is still a challenging issue since quality-of-service, such as end-to-end delay, is generally considered as a severe criterion required in many applications. We focus on the minimum-latency data aggregation problem and proposed a new efficient scheme for it. The basic idea is that we first build an aggregation tree by ordering nodes into layers, and then we proposed a scheduling algorithm on the basis of the aggregation tree to determine the transmission time slots for all nodes in the network with collision avoiding. We have proved that the upper bound for data aggregation with our proposed scheme is bounded by for wireless sensor networks in two-dimensional space. Extensive simulation results have demonstrated that the proposed scheme has better practical performance compared with related works.