The broadcast storm problem in a mobile ad hoc network
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Location-aided routing (LAR) in mobile ad hoc networks
Wireless Networks
Wireless sensor networks for habitat monitoring
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
On greedy geographic routing algorithms in sensing-covered networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Energy-efficient surveillance system using wireless sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
On delivery guarantees of face and combined greedy-face routing in ad hoc and sensor networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Distributed direction-based localization in wireless sensor networks
Computer Communications
Efficient geographic routing over lossy links in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
A survey of geocast routing protocols
IEEE Communications Surveys & Tutorials
Geocasting with guaranteed delivery in sensor networks
IEEE Wireless Communications
IEEE Communications Magazine
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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.