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Given the ever-expanding scale of WiFi deployments in metropolitan areas, we have reached the point where accurate GPS-free outdoor localization becomes possible by relying solely on the WiFi infrastructure. Nevertheless, the existing industrial practices do not seem to have the right implementation to achieve an adequate accuracy, while the academic researches that are mostly attracted by indoor...
Vehicular mobility scenarios are utilized to study vehicular networks and transportation systems. However, the generation of vehicular simulation scenarios at scale poses several research challenges. Large-scale vehicular datasets (in geographic coverage and time span) are not easily or publicly available, which hinders the generation of data-driven scenarios. In this paper, we introduce a systematic...
H.264 coding technology is the most commonly-used video compression technology. As H.264 videos in transmission, video packet losses inevitably occur. The error concealment method can solve the problem. For the lost block, we use the motion vector of neighboring available block to estimate the lost motion vectors, and the estimates propagate to predict all other missing motion vectors. By comparison...
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