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In broadcast for asynchronous wireless sensor networks (WSNs), delegation refers to a sender node delegating an uncovered node to a neighbor node already received the broadcast packet. Conventional delegation schemes make their delegation decision based on incomplete information and do not change the decision anymore, which may induce inefficient transmission or collision. We propose a dynamic delegation-based...
In wireless sensor networks (WSNs), the broadcasting is used for remote network configuration, information dissemination, route discovery and so on by propagating messages across the whole network. To reduce the energy consumption of the asynchronous WSNs, sensor nodes usually adopt independent wake/sleep scheduling. However, this may induce unpredictable waiting delay. In some real-time applications,...
The quality of Synthetic Aperture Radar image is affected by the deviation of radar platforms from the nominal straight line which is usually measured based on hardware such as Inertial Measurement Unit and Global Position System with high accuracy. Because of limited budget, many SAR systems cannot carry those expensive equipments. Based on the 3-D Geometry model of the motion error analysis, a new...
The quality of Synthetic Aperture Radar image is affected by the deviation of radar platforms from the nominal straight line which is usually measured based on hardware such as Inertial Measurement Unit and Global Position System with high accuracy. Because of limited budget, many SAR systems cannot carry those expensive equipments. Based on the 3-D Geometry model of the motion error analysis, a new...
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