GPSR: greedy perimeter stateless routing for wireless networks
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
Flooding-based geocasting protocols for mobile ad hoc networks
Mobile Networks and Applications
Anycasting-based protocol for geocast service in mobile ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Highly Adaptive Distributed Routing Algorithm for Mobile Wireless Networks
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
GeoTORA: a protocol for geocasting in mobile ad hoc networks
ICNP '00 Proceedings of the 2000 International Conference on Network Protocols
An Efficient Coverage-based Flooding Scheme for Geocasting in Mobile Ad hoc Networks
AINA '06 Proceedings of the 20th International Conference on Advanced Information Networking and Applications - Volume 01
A tiered geocast protocol for long range mobile ad hoc networking
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
A survey of geocast routing protocols
IEEE Communications Surveys & Tutorials
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Geocasting, a variation on the notion of multicasting, is a mechanism to deliver messages of interest to all nodes within a certain geographical target region. Although several geocasting protocols have already been proposed for multi-hop wireless networks, most of these algorithms consider a "single" target region only. Here, when more than one target regions need to receive the same geocast messages, multiple transmissions need to be initiated separately by the message source. This causes significant performance degradation due to redundant packet transmissions, and it becomes more severe as the number of target regions increase. To solve this problem, we propose a basic scheme and its variations which utilize the geometric concept of "Fermat point" to determine the optimal junction point among multiple geocast regions from the source node. Our simulation study using ns-2 shows that the proposed schemes can effectively reduce the overhead of message delivery while maintaining a high delivery ratio in mobile multi-hop wireless networks.