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To discover neighbor nodes, nodes in opportunistic mobile networks (OppNets) have to probe their environment continuously. This can be an extremely energy-consuming process. If nodes probe very frequently, a lot of energy will be consumed in the contact probing process and might be inefficient. On the other hand, infrequent contact probing might cause nodes to miss many of their contacts. Therefore,...
To improve the positioning accuracy for deep space probes, this paper presents the basic principle of radio imaging firstly, and then establishes the phase referencing model for them. Phase referencing technique can determine the accurate location of a probe. Measured data of Cassini were analyzed to evaluate the feasibility and possible accuracy of it. The results show that the position accuracy...
In Opportunistic Mobile Networks (OppNets), data is opportunistically exchanged between nodes who encounter each other. In order to enable such data exchanges, nodes in the network have to probe their environment continually, so as to discover neighbor nodes. This can be an extremely energy-consuming process. If nodes probe very frequently, they will consume a lot of energy, and might be energy inefficient...
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