Virtual Position Based Geographic Routing for Wireless Sensor Networks

As sensor networks are deployed over various terrains, the complexity of their topology continues to grow. Voids in networks often cause existing geographic routing algorithms to fail. In this paper, the authors introduce a novel concept: virtual position to address this issue. A virtual position is the middle position of all direct neighbors of a node. Such virtual position reflects the neighborhood of a sensor node, as well as the tendency of further forwarding.