Yung-Cheng Chu

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We design an application-layer overlay-network solution to deliver live video streaming for inter-vehicle communication (IVC) and vehicle-to-roadside communication (VRC). This solution includes a distributed clustering method called DVAC and an efficient peer-to-peer relay method called VAPER DVAC performs the distributed and message-driven procedures for(More)
Efficiently propagating adequate and effective traffic information to drivers helps increase driving safety and reduces traffic jams on highways. To achieve this, we designed an overlay solution that considers the challenges of propagating multisource information caused by vehicle mobility and multihop forwarding. The overlay solution is composed of a(More)
A digital random return-to-zero technique is presented to improve the dynamic performance of current-steering digital-to-analog converters (DACs). To demonstrate the proposed technique, a CMOS 8-bit 1.6-GS/s DAC was fabricated in a 90-nm CMOS technology. The DAC achieves a spurious-free dynamic range better than 60 dB for a sine-wave input up to 460 MHz and(More)
The performance of an automated conflict resolution algorithm was investigated in terms of its sensitivity to specific airspace regions and increased traffic demand. The algorithm is envisioned as part of an automated separation assurance function in a future air traffic control system. It was tested in a non-real-time simulation of current-day and heavily(More)
Efficient and real-time video broadcasting helps to improve driving safety and to make traveling fun for drivers. However, it is hard to structure vehicles into permanent network topologies and schedules to broadcast video streaming real-time in intervehicle communication (IVC) in a high-mobility vehicular environment. In order to achieve this, we have(More)
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