Spatio-temporal correlation:: theory and applications for wireless sensor networks
Spatio-temporal correlation:: theory and applications for wireless sensor networks
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DOI：
10.1016/j.comnet.2004.03.007
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发表时间：
2004-06-21
影响因子：
5.6
通讯作者：
Akyildiz, IF
中科院分区：
文献类型：
--
作者：
Vuran, MC;Akan, ÖB;Akyildiz, IF
无线传感器网络(WSN)的特点是密集部署传感器节点，不断观察物理现象。由于网络拓扑的高密度，传感器观测在空间域具有高度的相关性。此外，物理现象的性质构成了传感器节点的每个连续观测之间的时间相关性。这些空间和时间相关性以及WSN的协作特性为开发适合WSN范型的高效通信协议带来了巨大的潜在优势。为了实现先进高效的通信协议，本文研究了几个关键要素来捕获和利用无线传感器网络中的相关性。提出了一种无线传感器网络时空相关性建模的理论框架。该框架的目标是能够开发高效的通信协议，从而利用无线传感器网络范例的这些有利的内在特征。基于该框架，讨论了在无线传感器网络中利用空间和时间相关性来实现有效的媒体接入和可靠的事件传输的可能方法。(C)2004爱思唯尔B.V.保留所有权利。
Wireless Sensor Networks (WSN) are characterized by the dense deployment of sensor nodes that continuously observe physical phenomenon. Due to high density in the network topology, sensor observations are highly correlated in the space domain. Furthermore, the nature of the physical phenomenon constitutes the temporal correlation between each consecutive observation of a sensor node. These spatial and temporal correlations along with the collaborative nature of the WSN bring significant potential advantages for the development of efficient communication protocols well-suited for the WSN paradigm. In this paper, several key elements are investigated to capture and exploit the correlation in the WSN for the realization of advanced efficient communication protocols. A theoretical framework is developed to model the spatial and temporal correlations in WSN. The objective of this framework is to enable the development of efficient communication protocols which exploit these advantageous intrinsic features of the WSN paradigm. Based on this framework, possible approaches are discussed to exploit spatial and temporal correlation for efficient medium access and reliable event transport in WSN, respectively. (C) 2004 Elsevier B.V. All rights reserved.