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Mobile users often connect through WiFi access points and frequently find themselves behind NATs that are built into common off-the-shelf home access points or enterprise wireless deployments. Punching a hole through the NATs to establish a P2P connection can be a challenging task for lay users. We present our system, ANT, that utilizes Audio signaling for NAT Traversal. With ANT, unlike other NAT...
By method of study in aerodynamic noise, a model of car and protective barrier road in air field was built in this paper. The distributed of fluid and acoustic in aside of protective barrier road was solved by Fluent software. The result of analysis showed that velocities, pressures and noise are all distributed as alternating strong and weak near the protective barrier. And when the speeds of car...
In this paper, an efficient audio watermarking detection is developed to revive a watermark attacked by hazardous synchronization attacks, such as time-scale and pitch-scale modifications (TSM and PSM). It outperforms the robustness of our previously implemented audio watermarking scheme by resisting excessive distortion of up to ??10%. The key idea of the method is adaptively aligning the frequency...
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