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In wireless networks, communication links may be subject to random fatal attacks: for example, sensor networks under sudden power losses or cognitive radio networks with unpredictable primary user spectrum occupancy. Under such circumstances, it is critical to quantify how fast and reliably information can be collected over attacked links. In our previous work, we studied such channels by considering...
In this paper, we investigate a new type of channels named as "dying" channels, which are resulted in wireless networks subject to random fatal impacts, e.g., sensor networks under sudden physical attacks or cognitive radio networks with unpredictable primary user occupancy. Under such circumstances, it is critical to quantify how fast and reliable information can be collected over "dying"...
Weighted prediction is a useful tool in video compression to encode scenes with lighting changes, such as fading scenes. Estimating weighted prediction parameters has been extensively discussed in the literature, however no mathematical model has been proposed. Moreover, the detection of the fading scenes in a real-time encoding system has received little attention. This paper addresses both of these...
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