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Geocasting has been known as the appropriate scheme for providing effective data dissemination from a source to all nodes in a geographically restricted region. However, since the geocasting typically assumes the restricted region is stationary, it is hard to directly adopt the traditional geocasting in order to offer effective data delivery to mobile sink groups that have geographically collective...
Geographic routing has been considered as an efficient, simple, and scalable routing protocol for wireless sensor networks since it exploits pure location information to route data packets toward a static sink. Recently, a number of research works have shown that mobile sinks can achieve high energy efficiency and load balance than static ones. To support sink mobility, the location of a mobile sink...
There have been proposed many geographic multicasting protocols for wireless ad hoc sensor networks. Most of these protocols tend to exploit a Source-initiated Geographic Multicasting (SGM) approach which consists of three phases: first, a source collects the position information of all destination nodes; second, the source constructs a multicast tree through the position information; third, the source...
Typical real-time routing data dissemination schemes employ 1-hop transmission speed based on the 1-hop lookahead manner that proactively obtains information of 1-hop neighbor nodes and selects one that satisfies a desired delivery speed as next hop. To improve performance of 1-hop lookahead based real-time routing protocols, THVR (Two-Hop Velocity-based Routing) is proposed. THVR reduces deadline...
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