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Live media streaming applications are increasingly popular, with services such as Twitch.tv and YouNow being used by millions of people. Deploying such services on the cloud can be very expensive, as the cost is proportional to the amount of data transferred to the users. However, adopting a much less costly peer-to-peer (P2P) solution may reduce the overall quality-of-service (QoS) experienced by...
Media streaming is the killer application in current Internet. There are a variety of media streaming techniques in today's Internet, such as RTSP, HTTP live streaming and Adobe Flash etc. HTTP live streaming (HLS) is a popular and most promising technique as the protocol is based on the Internet workhorse protocol i.e. HTTP, and supported by HTML5 and mobile platform. Most of these media streaming...
Smart devices have deeply modified the user consumption expectations getting used to rich interactive experiences around new media services. In this emerging landscape, TV rises as the central media device integrating the home network ecosystem. In the race to create more dynamic and customizable content, computer generated 3D graphics get a prominent position combined with video and audio to provide...
The number and popularity of applications developed over the Peer-to-Peer (P2P) network paradigm has been growing over the last decade, some of which are dedicated to streaming multimedia content. To deceive traffic shaping mechanisms or improve the security of the communications, these applications generate encrypted traffic or resort to several obfuscation techniques, making it difficult to manage...
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,...
This paper presents the results of the performance evaluation concerning 3G/3GPP IP Multimedia Subsystem (IMS) applications deployed in a wireless multi-hop network controlled by the Delay-Aware Network Utility Maximization System (DANUMS). The main purpose of the DANUM system is simultaneous service of files and multimedia streams, i.e., types of traffic of different delay requirements. DANUMS combines...
Streaming media protocol-based applications share communication resources with regular Network/Internet traffic. So, they are exposed to any existing security attacks. In the present paper, we measure this relationship between attacks and applications by introducing a probabilistic verification evaluation. Our approach is novel in that, it is based on the concurrency between models. In addition, the...
With the standardization of SVC, the scalable extension of H.264/AVC, layered peer-to-peer streaming has attracted more and more attention as it offers adaptability to network fluctuations and heterogeneous end users. Although overlay construction is important for system performance, not much effort has been spent on unstructured overlay construction for layered peer-to-peer streaming. Related work...
Due to complicated implementation of IP multicast, application layer multicast has attracted the attention of researchers. Tree overlay has some challenges such as resiliency problems caused by peer churns and also network resources may not be efficiently used. Mesh overlay doesn't have such problems, but has a high delivery latency and overhead caused by pull mechanism. Using a hybrid mesh/tree overlay...
Most peer-assisted media streaming systems have applied a design philosophy that uses a "mesh" topology of peers: each peer connects to a small number of neighboring peers, with which it exchanges state information periodically. Requests for media segments are made to these neighboring peers on- demand. Apparently, with such a "gossiping" design principle, peers do not make decisions...
Deploying multimedia streaming over IP Multimedia Subsystem (IMS) can enable all kinds of user equipments to enjoy unified streaming service, without considering the differences of heterogeneous accessing methods. The combination of IMS and peer-to-peer (P2P) may help operators (especially telecommunication operators) to provide more scalable multimedia streaming. In this paper, we propose PMSAI,...
In this paper, we present a solution to efficient multimedia streaming applications over P2P networks based on the foresighted resource reciprocation strategy. We study several priority functions that can explicitly consider the timing constraints and the importance of each data segment in terms of multimedia quality, and successfully incorporate them into the foresighted resource reciprocation strategy...
Multimedia in IMS, including IPTV, is handled by a separate unit, the Media Function (MF), which is made up of Media Control and Media Delivery Functions (MCF & MDF). According to the different specifications of an IMS based IPTV architecture, the User Equipment (UE) is expected to use the RTSP protocol as a media control protocol to interact with the MCF, and gets delivery of media from the MDF...
Peer-to-Peer (P2P) media streaming networks have attracted significant research interest recently. However, it is challenging to design live P2P media streaming systems because of the stringent time constraints on the delivered media streams, which require more efficient and resilient overlay. In this paper, we focus on live P2P media streaming networks, a promising application flourishing in the...
The rapid spread of wireless mobile devices and the advances of wireless communication have fueled the interest about streaming 3D graphics on mobile devices to be used in augmented reality based classes of applications. In these types of applications, a real world is mapped into the virtual world and thin mobile devices are employed to navigate in the virtual simulated environment (VE). In evidence,...
Overlay networks create a structured virtual topology above the basic transport protocol level. It allows implementing network services that are not totally tied to the underlying network infrastructure. Many overlay network protocols have been proposed to organize nodes into various topologies with emphasis on different networking properties. Presently there are a lot of services and applications...
RTSP has been widely used in a variety of streaming media applications and streaming service providers hope to choose a high-performance streaming media server to meet their needs, so it is an important research topic about how to evaluate the serving performance of RTSP streaming media server. This paper analyzes the performance metric of streaming media applications comprehensively, and proposes...
PeerCast is a classical software of P2P streaming media. In this paper, an NS2-based PeerCast network simulation system was constructed for simulating the PeerCast protocol. Then we found two shortcomings of the PeerCast and proposed a multipath transmission algorithm based on depth balancing. The results of our simulation experiments demonstrate that the proposed algorithm substantially improved...
China is currently one of the fastest growing P2P streaming media in the world, with the consumer scaled up and enhancing the financial gain. The service information of P2P streaming media could help indicating the operators' development and providing effective network content supervision. Moreover, the user behavior information plays an important role for raising the quality of network operators'...
The bandwidth in wireless networks is usually shared by a number of wireless nodes. The channel capacity depends on the number of accessing nodes, time, environmental conditions and location of nodes. Due to varying channel conditions, several issues are observed in the transmission of real time multimedia. The existing research on multimedia streaming can be classified into adaptation techniques...
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