Hits:

Indexed by:期刊论文

Date of Publication:2010-02-27

Journal:KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS

Included Journals:SCIE、Scopus

Volume:4

Issue:1

Page Number:5-24

ISSN No.:1976-7277

Key Words:Wireless sensor networks; data fusion; multi-attribute fusion; energy equilibrium; fusion-driven routing

Abstract:Data fusion is an attractive technology because it allows various trade-offs related to performance metrics, e. g., energy, latency, accuracy, fault-tolerance and security in wireless sensor networks (WSNs). Under a complicated environment, each sensor node must be equipped with more than one type of sensor module to monitor multi-targets, so that the complexity for the fusion process is increased due to the existence of various physical attributes. In this paper, we first investigate the process and performance of multi-attribute fusion in data gathering of WSNs, and then propose a self-adaptive threshold method to balance the different change rates of each attributive data. Furthermore, we present a method to measure the energy-conservation efficiency of multi-attribute fusion. Based on our proposed methods, we design a novel energy equilibrium routing method for WSNs, viz., multi-attribute fusion tree (MAFT). Simulation results demonstrate that MAFT achieves very good performance in terms of the network lifetime.