Now showing items 641-650 of 675
Branch and bound algorithms for rate-distortion optimized media streaming
We consider the problem of rate-distortion optimized streaming of packetized multimedia data over a single quality-of-service network using feedback and retransmissions. For a single data unit, we prove that the problem ...
Determination of density of states in amorphous carbon
Various methods have been employed before to deduce the density of states (DOS) in amorphous carbon. However, further investigations show that capacitance measurements on a metal-insulator-semiconductor structure are an ...
Wavelet and multiwavelet watermarking.
MIMO-OFDM-based DVB-H systems: a hardware design for a PAPR reduction technique
Digital video broadcasting - handheld (DVB-H) is the technology driving mobile TV, which uses orthogonal frequency division multiplexing (OFDM) systems with multiple-input multiple-output technology (MIMO). These mobile ...
Substrate selection for the infra-red analysis in amorphous hydrogenated carbon films
The hydrogen concentration in amorphous materials plays an important role in determining its electrical and optical properties. The selection of a substrate is important to estimate the concentration of hydrogen and the ...
Unequal error protection using LT codes and block duplication.
Luby Transform (LT) codes are powerful packet erasure codes with low encoding and decoding complexity. We provide a simple method to improve the bit error rate performance of LT codes. Moreover, we exploit our method ...
Robust live unicast video streaming with rateless codes.
We consider live unicast video streaming over a packet erasure channel. To protect the transmitted data, previous solutions use forward error correction (FEC), where the channel code rate is fixed in advance according to ...
Error-resilient packet switched H.264 mobile video telephony with LT coding and reference picture selection.
Packet switched video telephony over wireless networks for hand-held devices requires low-delay, low-complexity error control mechanisms to deal with packet loss. We present an efficient solution for 3G networks based ...
Bistability in electrically writable non-volatile polymer memory devices.
(Mater. Res. Soc. Symp. Proc, 2009)
In recent years, interest in applications of organic materials in electronic devices (light emitting diodes, field effect transistors, solar cells), has increased rapidly. The advantages of organic materials are the ease ...
Practical channel-adaptive video streaming with fountain codes.
Video streaming is sensitive to packet loss, which can severely damage the quality of the received video. Video communication systems that rely on application-layer forward error correction (FEC) to combat packet loss ...