The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Video conferences over the Internet with multiple participants have to be wirelessly connected to improve the communication efficiency. However, video conferences are often held in places suffering from crowded wireless medium, such as offices and schools. This leads to many challenges on providing high video conferencing experience. In this paper, we study the problem of video streaming over crowded...
The emerging research of SDN and NFV have been promising to provide flexibility in network provisioning based on service requirement. However, current network provision methods of SDN and NFV do not have a formalized model of describing dynamic requirement of the services. The usage of audio/video services may be the example of the services with dynamic requirement. The orchestrator of SDN and NFV...
Nowadays many IPTV services are deployed based on P2P structure for the sake of saving the cost of server equipment and bandwidth requirement. Since peers may join and leave the P2P system arbitrarily, it may cause the service quality unstable. In this paper, we compare IP addresses to find partner peers in proximity, and use specific packet pairs to probe partner peers that have larger bandwidth,...
The Internet has become an integral part of human's life with an ever increasing number of applications and services that it provides to its customers. Both the numbers of Internet users and services provided by the Internet continue to rise tremendously. Quality of Service (QoS) is the ability of a network to provide better services for the users to divide the bandwidth according to the needs of...
This paper will discuss about transmission of multimedia content in limited capacity network (up to 5 Mbps), especially to study about the impact of background traffic towards multimedia content delivery quality in a limited capacity network. Observation methods proposed in the study include measurement of limited capacity network, background traffic modeling, and simulating the network to observe...
The efficiency of the compression parameters of video control method is directly related to the number of parameters. Namely, the time required to process each of the frames, and the possibility of considering the peculiarities of the processed frames content. This article describes factors that affect the value of the transmission delay and explores improving aspects for the performance parameters...
In this article deals with estimating and analysis capacity of the closed video channel in the case of applying the method for processing video data based on standardized MPEG technology, the method for closing the video based on the series circuit (compression followed by encryption), the method to hide all the video after the DCT blocks of the base of the video frame, the method based on the selection...
To stream video using HTTP, a client device sequentiallyrequests and receives chunks of the video file fromthe server over a TCP connection. It is well-known that TCPperforms poorly in networks with high latency and packet losssuch as wireless networks. On mobile devices, in particular, usinga single TCP connection for video streaming is not efficient, andthus, the user may not receive the highest...
HTTP-based adaptive protocols dominate today's video streaming over the Internet, and operate using multiple quality levels that video players request one segment at a time. Despite their popularity, studies have shown that performance of video streams still suffers from stalls, quality switches and startup delay. In wireless networks, it is well-known that high variability in network bandwidth affects...
Adaptive video streaming techniques were introduced to enable high quality video delivery over HTTP. These schemes propose to choose dynamically the appropriate video rate to match the operating conditions. In home networks, wireless access is the predominant Internet access. Multiple clients/players with different link qualities compete over a limited wireless bandwidth to transfer their video streams...
Bringing video images from camera to screen is a complex production process involving several intermediate steps and actors. The media sector is characterized by a high need for fast and reliable data transport, between production locations, post-production facilities, broadcasters and back-up locations. The growing size of video files and the stringent network requirements for live production have...
Buffering mechanisms play a vital role in leveraging the capacity and efficiency of live streaming as well as P2P streaming system. An appropriate buffering mechanism allows the peer to undergo a smooth playback by compensating the delay introduced by the network as well as storing pieces to be played in the near future. A circular buffer is used most of the time in a live P2P streaming system as...
Videos streaming is one of the top most used services delivered by Internet Service Providers. In contrast to classical video services, the streaming solutions offer interaction with the user and provide real-time feedback. In this paper we analyze the quality of the delivered video over MPLS networks, on of the most used technologies inside an ISP. We study the impact of traffic loss over the video...
In this paper, we investigate an energy efficient transmission scheme for video streaming in buffer-aided relay networks. In order to minimize the average energy consumption, we propose an energy-efficient transmission algorithm (EETA), which selects either the source relay (S — R) or the relay user (R — U) link for transmission depending on the instantaneous channel state information as well as the...
This electronic document is a “live” template and already defines the components of your paper [title, text, heads, etc.] in its style sheet. Video streaming is a technique for distributing media content, in which it is not necessary for the streams of the requested file to arrive in full in order to begin playing the video. Traditionally, streaming has been supported by RTP and RTSP protocols, requiring...
This decade has been marked with tremendous growth of video streaming which has been known as “bandwidth killer service”. Unmanaged services or Over-the-top (OTT) services now become more and more popular in the entertainment industry. However, it is easy to realize that those services' providers do not guarantee a stable video quality for users because they cannot control the underlying network condition...
A large part of the data transmitted over the Internet today consists of video streaming services, mainly due to the growth of services like Youtube, Skype or WebEx. The need for an adaptive video stream arose as a mobile robot with real-time video streaming capability has been developed. ARC-ROVER is a robot that could connect to the Internet via 3G technology, and that could be controlled over the...
Peer organization is one of the most important issues in peer-to-peer (P2P) video streaming systems. Free-riding extremely reduces the overall performance of these systems. The peers placed closer to the video source will have a higher quality of service. Therefore, we can mitigate the free-riding effect and encourage peers to increase uploading participation by putting peers with more upload bandwidth...
In current Internet, most of the traffic dedicated to video streaming applications. In recent years, Peer-to-Peer (P2P) streaming approach has gained more attention, due to the high cost of providing the required bandwidth for a large number of users in Client-Server model. Mesh-based peer-to-peer video streaming is a robust approach which recently employed in many multimedia networking applications...
Peer to peer networks offer an extensible framework for supporting video streaming service over the Internet. P2P networks efficiency highly depends on peers' contribution. In practice, some peers only use the service, but share few resources or do not share any resources. This phenomenon is called free riding which seriously affects the P2P networks efficiency. So, in order to encourage the peers...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.