naa a22 4500 510795390 CHVBK 20180411083334.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11277-012-0619-1 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0619-1 Wang Sheng-Shih Department of Information Management, Minghsin University of Science and Technology, Hsinchu, Taiwan aut Probabilistic Forwarding Decision Scheme for Reliable Geocasting in Wireless Sensor Networks [Elektronische Daten] [Sheng-Shih Wang] Geocasting is an important communication service in wireless sensor networks. Most of the existing geocasting protocols assume that sensor nodes and the area of interest have accurate location information. However, this assumption is unreasonable if localization systems or schemes cannot work well. This study proposes an efficient probabilistic forwarding decision scheme for reliable geocasting in virtual coordinate-based wireless sensor networks. The proposed scheme uses directional code and hop distance to identify sensor node's location. The sensor node determines a direction-based probability and a distance-based probability derived from its directional code and hop distance, respectively. The sensor node depends on the two probabilities to determine its ultimate forwarding probability. Simulation results confirm that the proposed scheme outperforms the pure direction-based forwarding scheme in packet delivery ratio though it occurs more packets. Results also show that the direction-based probability significantly dominates the geocasting performance. Springer Science+Business Media, LLC., 2012 Geocasting nationallicence Probabilistic forwarding nationallicence Virtual coordinate nationallicence Wireless sensor network nationallicence Wireless Personal Communications Springer US; http://www.springer-ny.com 69/2(2013-03-01), 915-936 0929-6212 69:2<915 2013 69 11277 https://doi.org/10.1007/s11277-012-0619-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0619-1 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wang Sheng-Shih Department of Information Management, Minghsin University of Science and Technology, Hsinchu, Taiwan aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/2(2013-03-01), 915-936 0929-6212 69:2<915 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer