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Congestion control is vital in the streaming of a video sequence or clip, as network traffic varies unpredictably requiring constant adjustment of the transmission rate. Standard TCP-Friendly Rate Control (TFRC) wastes bandwidth and may react to congestion only when packet loss has already occurred. This paper presents a unicast transport protocol named RRB-SIMD for video streaming over the Internet,...
Real-time streaming applications typically require minimizing packet loss and transmission delay so as to keep the best possible playback quality. From this point of view, IP datagram losses (e.g. caused by a congested router, or caused by a short term fading problem with wireless transmissions) have major negative impacts. Although Application Layer Forward Error Correction (AL-FEC) is a useful technique...
Video transport over wireless networks requires retransmissions to successfully deliver video data to a receiver in case of packet loss, leading to increased delay time for the data to arrive at the receiver. Delay constraint is one of the most important requirements in real-time applications. A video packet arriving later than the presentation time will become useless for the client. In this paper,...
In this paper we propose SWOR, an architecture to deliver Scalable Video Coding (SVC) contents over P2P network. SWOR architecture is based on twofold mechanisms: (1) organization of peers in Small-World (SW) overlay networks, (2) delivering SVC content using push-pull mechanism. SWOR is evaluated and compared with CoolStreaming/DONet (CS) on QoS metrics using NS-2 simulator. Performance evaluation...
This paper describes a lossless scheme to transcode FMO-encoded H.264 videos at the receiver for playback by any H.264 decoder/player. The proposed scheme works in the compressed domain and does not require extended computations or storage. Moreover, it is capable of modifying the slice structure when slices are lost during the transmission and is frame-based which makes it suitable for live video...
This paper quantifies the performance degradation of video streaming over WLAN network (IEEE 802.11g) due to distance, obstacles and motion. Wireless networks are generally marked by the presence of noise and channel interferences which present an overhead to video quality. First, we present the research done on the metrics used for performance assessment which are: PSNR, transmission delay, jitter,...
Video streaming over the Internet and packet-based wireless networks is sensitive to packet loss, which can severely damage the quality of the received video. Application-layer forward error correction is commonly used to protect the transmitted video data against packet loss. However, since network conditions are unpredictable, determining the right amount of redundancy introduced by the channel...
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