No abstract

R EAL-time interactive streaming is an essential component for many low-latency applications over the Internet including high-definition video conferencing, augmented/virtual reality, and online gaming. In particular, lowlatency video conferencing has been a cornerstone for communication and collaboration for individuals and enterprises. At the core of these important applications is the need to reliably deliver packets with low latency. Given that the Internet is a packet-switched network where reliable packet delivery is not guaranteed, the need for effective methods to protect live video communications over the Internet has never been greater. A. Forward Error Correction for Real-Time StreamingPacket erasure (loss) at the network layer for an end-toend communication over the Internet is inevitable. Two main approaches have been implemented at the transport layer to control end-to-end error introduced by the network layer:

No abstract

We report on the fine tuning of sputtered gold nanoparticles (Au NPs) with optimized diameters (7–25 nm) and distribution on the high surface area titania nanotube arrays (TNTs). The uniform coverage of Au NPs both outside and inside the nanotube arrays was possible by adjusting the sputtering current, as confirmed via scanning electron microscopy imaging and X‐ray diffraction analysis. Decorating the TNTs with Au NPs extended their optical activity to the visible region of the light spectrum. This red shift was attributed to the localized surface plasmon resonance (LSPR) of Au NPs as verified computationally and experimentally. The Au–TiO2 composites demonstrated 86% increase in the photocurrent compared to the bare TNTs upon their use as photoanodes for water splitting. The photoactivity was found to depend on the size of the sputtered Au NPs. The photocurrent transient measurements under light on/off conditions revealed the photostability of the Au–TiO2 nanocomposites. The Mott–Schottky analysis showed a negative shift in the flat band position of the Au–TiO2 electrodes with increased donor density compared to the bare TNTs. Moreover, the Au–TiO2 showed lower space charge capacitance and longer life time of charge carriers.

No abstract