naa a22 4500 510795579 CHVBK 20180411083335.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11277-011-0444-y doi (NATIONALLICENCE)springer-10.1007/s11277-011-0444-y Continuous Location Dependent Queries in Mobile Wireless Sensor Networks [Elektronische Daten] [Liang Hong, Gang Zhou, Bo Liu, Sang Son] Query processing in mobile Wireless Sensor Networks (WSNs) is still a challenging problem because sensor mobility causes frequent changes of network topology. In this paper, we study the problem of processing Continuous Location Dependent Query (CLDQ) that retrieves the sampling data of the sensors within a specific area (i.e. query area) around a mobile sensor. Existing query processing approaches can not efficiently process CLDQs with continuously moving query areas. We propose scalable techniques to process CLDQs efficiently and accurately, including a dissemination approach, a Contention-based Distance-aware Message Scheduling scheme, in which each stationary sensor's data transmissions are smartly scheduled according to its distance to the mobile sensor, and an optimization scheme for continuous processing of CLDQs. Extensive experiments indicate that our techniques demonstrate better efficiency of processing CLDQs over state-of-the-art techniques while achieving high accuracy and short query latency under various network settings. Springer Science+Business Media, LLC., 2011 Location dependent query nationallicence Mobile wireless sensor network nationallicence Query processing nationallicence Data aggregation nationallicence Dissemination nationallicence Hong Liang School of Computer, Wuhan University, 430072, Wuhan, Hubei, China aut Zhou Gang Department of Computer Science, College of William & Mary, Williamsburg, VA, USA aut Liu Bo College of Computer Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China aut Son Sang Department of Computer Science, University of Virginia, Charlottesville, VA, USA aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/1(2013-01-01), 153-173 0929-6212 68:1<153 2013 68 11277 https://doi.org/10.1007/s11277-011-0444-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-011-0444-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hong Liang School of Computer, Wuhan University, 430072, Wuhan, Hubei, China aut NATIONALLICENCE 700 1- Zhou Gang Department of Computer Science, College of William & Mary, Williamsburg, VA, USA aut NATIONALLICENCE 700 1- Liu Bo College of Computer Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China aut NATIONALLICENCE 700 1- Son Sang Department of Computer Science, University of Virginia, Charlottesville, VA, USA aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/1(2013-01-01), 153-173 0929-6212 68:1<153 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer