標題: Measuring air quality in city areas by vehicular wireless sensor networks
作者: Hu, Shu-Chiung
Wang, You-Chiun
Huang, Chiuan-Yu
Tseng, Yu-Chee
資訊工程學系
Department of Computer Science
關鍵字: Micro-climate monitoring;Opportunistic communication;Pervasive computing;Vehicular sensor network;Wireless sensor network
公開日期: 1-十一月-2011
摘要: This paper considers a micro-climate monitoring scenario, which usually requires deploying a large number of sensor nodes to capture environmental information. By exploiting vehicular sensor networks (VSNs), it is possible to equip fewer nodes on cars to achieve fine-grained monitoring. Specifically, when a car is moving, it could conduct measurements at different locations, thus collecting lots of sensing data. To achieve this goal, this paper proposes a VSN architecture to collect and measure air quality for microclimate monitoring in city areas, where nodes' mobility may be uncontrollable (such as taxis). In the proposed VSN architecture, we address two network-related issues: (1) how to adaptively adjust the reporting rates of mobile nodes to satisfy a target monitoring quality with less communication overhead and (2) how to exploit opportunistic communications to reduce message transmissions. We propose algorithms to solve these two issues and verify their performances by simulations. In addition, we also develop a ZigBee-based prototype to monitor the concentration of carbon dioxide (CO(2)) gas in city areas. (C) 2011 Elsevier Inc. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jss.2011.06.043
http://hdl.handle.net/11536/14708
ISSN: 0164-1212
DOI: 10.1016/j.jss.2011.06.043
期刊: JOURNAL OF SYSTEMS AND SOFTWARE
Volume: 84
Issue: 11
起始頁: 2005
結束頁: 2012
顯示於類別:期刊論文


文件中的檔案:

  1. 000295997900014.pdf