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Delay Tolerant Network (DTN) is an approach applied to computer network architecture to address the technical issues in heterogeneous networks that may lack continuous network connectivity. Examples of these networks are those operating in the mobile or extreme terrestrial environments, or planned networks in space. In this paper, we optimize the implementation of DTN gateway and tested with the Video-On-Demand...
One of the major issues about location-technique-based servers concerns how to make positioning more accurate. A general solution is to separately explore advanced algorithm on a particular location technique. However, this paper proposes a new concept called Multi-mode positioning which combines several location techniques. After a brief overview of existing technologies, the writer focuses on the...
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