Dynamic clustering of distributed source coding in wireless sensor networks

作     者：LIU Bing 

作者机构：Information Security Department Beijing Electronic Science and Technology Institute Beijing 100070 China 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2009年第16卷第1期

页      面：22-26页

核心收录：

学科分类：07[理学] 080202[工学-机械电子工程] 08[工学] 070104[理学-应用数学] 0802[工学-机械工程] 081101[工学-控制理论与控制工程] 0701[理学-数学] 0811[工学-控制科学与工程] 

基　　金：supported by the Foundation of Key Laboratory of Information Security and Privacy of Beijing Electronic Science and Technology Institute 

主　　题：WSNs DSC clustering 

摘      要：There are correlations of data in adjacent sensor nodes in wireless sensor networks （WSNs）. Distributed source coamg （DSC） is an idea to improve the energy efficiency in WSNs by compressing the sensor data with correlations to others, When utilizing the DSC, the network architecture that, deciding which nodes to transmit the side information and which nodes to compress according to the correlations, influences the compression efficiency significantly. Comparing with former schemes that have no adaptations, a dynamic clustering scheme is presented in this article, with which the network is partitioned to clusters adaptive to the topology and the degree of correlations. The simulation indicates that the proposed scheme has higher efficiency than static clustering schemes.