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Title: An efficient data collecting network structure in wireless sensor networks
Authors: Cheng, CT
Tse, CKM 
Lau, FCM 
Issue Date: 2008
Source: 2008 International Conference on Communications, Circuits and Systems, Shanghai, China, May 25-27, 2008, p. 444-447
Abstract: In a sensor network, a single event may be captured by hundreds of sensor nodes simultaneously. Data in these sensor nodes are thus highly correlated. Data transmission can be facilitated by employing data aggregation techniques. The traditional way to do data aggregation in a sensor network is to divide the network into clusters and elect one node as the cluster head in each cluster. These cluster heads are responsible for collecting data from other nodes within its belonging cluster. Collected data will first be fused before being forwarded to the base station. Due to the design limitations, most nodes in a sensor network are only capable of handling a single connection at a time. Therefore, to collect data from n cluster members, a cluster head will need at least n time slots. In this paper, a special network structure and its formation algorithm are proposed. Simulation results show that the proposed network structure can greatly reduce the delay in data collection.
Keywords: Metropolitan area networks
Sensor networks
Telecommunication equipment
Wireless telecommunication systems
Publisher: IEEE
ISBN: 978-142-44-2064-3
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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