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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,...
When a mobile host transmitting real-time video traffic using DCCP CCID3 moves between two wireless LAN access points with different congestion situations, it is difficult to quickly change the transmission rate according to the changes of communication environment because controlling the sending rate depends on feedback information. To solve this problem, we recently proposed a predictive rate control...
The amount of information in real-time video monitoring is very large. So, the disk space is used largely, and the network congestion is easy to caused. In order to reduce the network congestion, save storage space, take out noneffective information in video, video key-frames are extracted in sending end and video is resumed in receiving end. A real-time video monitoring system is implemented. A kind...
The growing use of real-time video in wireless networks, where loss rates are high yet bandwidth and CPU power of receivers can be scarce, calls for new methods to maintain good quality when packets are dropped. These methods should ideally only involve the sender and avoid increasing the amount of data sent across the network. We introduce a scheme that satisfies these requirements by selectively...
For accident prevention at intersections, it is useful for drivers to grasp the position of vehicles in blind spots. This can be achieved without infrastructure if some vehicles passing near the intersection capture and share live video of the intersection through inter-vehicle communications. However, such video streaming requires a congestion control mechanism. In this paper, aiming to let a driver...
Multi-rate multicast schemes can be broadly classified into two categories. In layered multicast, a video file is transmitted by a base layer, which contains the most important features of the video. Additional layers, called enhancement layers, contain data that refine the quality of the base layer. In simulcast, the video file is transmitted by replicated layers that contain the same content at...
This paper presents the performance evaluation of a multi-rate multicast protocol named adaptive smooth simulcast protocol (ASSP) for simulcast video transmission. ASSP implements a single rate TCP-friendly protocol as the underlying congestion control mechanism for each simulcast stream. ASSP is built on top of the RTP/RTCP protocol and exploits the RTCP sender and receiver reports for the dissemination...
In this paper, we propose a high speed binomial congestion control protocol (HSBCC) for streaming video transmitting in high speed network environment, which is based on high speed TCP protocol (HSTCP) and binomial congestion control protocol (BCC). HSTCP offers an effective and robust mechanism for bulk data transmitting in high bandwidth-delay network. However it has a big rate oscillation when...
More and more streaming protocols are developed for the multimedia applications. However, many streaming protocols only consider the network stability, but not the characteristics of streaming applications. In order to cooperate with H.264/MPEG-4 AVC scalable extension which can achieve fine granularity of scalability at bit level to the time-vary heterogeneous networks, we design a TCP-friendly congestion...
Streaming media applications require acceptable levels of quality of service (QoS). Appropriate rate control mechanism is needed to make streaming media applications to adapt to dynamic network conditions. This paper discusses a window-based weighted-fairness AIMD (WF-AIMD) congestion control algorithm which allows competing flows to share a common bandwidth according to their weights. By making flows...
In a P2P network, the same content can derive from multiple sources, which is to say that there can be multiple incomings. As RTP used popularly in video streaming cannot handle multipoint-to-point data streams, R2CP was proposed to resolve this drawback. However, R2CP does not discriminate the data packets which are critical to the quality of video streaming, so there is a great risk that the critical...
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