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In this paper, we present a novel idea of multipath multicast, which is imperative to bandwidth intensive applications, in the context of multimedia streaming. In addition to congestion control, multipath TCP (MPTCP) has been proposed to establish multiple paths in a network to improve network reliability. Application-layer multicast (ALM) has been proposed to leverage end systems instead of dedicated...
TFRC (TCP-friendly Rate Control) is designed to mainly provide optimal service for unicast applications such as multimedia streaming in the best-effort Internet environment. TFRC smoothly changes transmission rate while competing fairly with TCP by using an equation on the modeling of TCP Reno to adjust the transmission rate. However, TFRC inherits RTT-unfairness problem of TCP Reno which severely...
The use of multimedia applications is increasing every year. These trends include the deployment using wireless local area network (WLAN) that allows users to access various services. The most significant thing in the use of wireless networks is the delay, collusion, attenuation and interference. In addition, it is difficult to provide quality of service (QoS) in WLAN as the network capacity also...
In this paper, we propose Scale Stream, a new algorithm to support scalable multimedia streaming in peer-to-peer networks, under strict resources constraints. With the growth of multimedia consumption over the Internet, achieving scalability in a resource-constrained environment is indeed becoming a critical requirement. Intuitively, our approach consists in dynamically replicating the multimedia...
The opportunities laid by the joint use of Peer-to-Peer (P2P) streaming systems and advanced Digital Fountain (DF) codes in the context of Internet Protocol TeleVision (IPTV) platforms have set high expectations for their combined use. P2P streaming strategies, on one hand, have proven to be able to increase the bandwidth efficiency and the consequent scalability of IPTV platforms. DFs, on the other,...
Delivering multimedia streaming on Internet remains several limitations, such as bandwidth fluctuations and network conjunction. We present a multimedia gateway design including dynamic bandwidth estimation, SVC extractor and buffer management to resolve the limitations. The dynamic bandwidth estimation not only selects the appropriate SVC sub-stream, but also measures the change of bandwidth and...
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...
In this paper, we present a dynamic caching and replacing mechanism for the multiple videos over quality of service networks. The metafile containing the metadata about the video is maintained for caching and replacing mechanism. The caching algorithm employs the sliding window method to select the frame that has to be cached. The sliding window mechanism uses the beneficial value which is calculated...
Recently, many works have been proposed in the area of cognitive radio to efficiently utilize the spectrum for data communication. However, little effort has been made in content-aware multimedia applications over cognitive radio networks. In this paper, we study the multimedia streaming problem over cognitive radio networks. The uniquely scalable and delay-sensitive characteristics of multimedia...
In this paper, we are addressing the problem of autonomic resource management for Virtual Private Networks (VPNs). Resources management is one of the important problems facing most Internet Service Providers (ISPs). As a solution, the Autonomic Service Architecture (ASA) is proposed in the literature to automate the resources management. Although, this model is able to improve ISPs' performance by...
Multimedia streaming is increasing in popularity and has become one of the dominating services on the Internet today. Even though user devices are often equipped with multiple network interfaces and in reach of several access networks at the same time, media streams are normally communicated over only one of the available Internet connections. In this paper, we explore the challenges and potential...
Although TCP is one of the key protocols of the Internet infrastructure, it is not optimized for either wireless environment or multimedia streaming applications. It fails to meet the service requirement of streaming applications because of its strict adherence to congestion control. Besides, non-congestion packet loss fools TCP to slow down its sending rate over wireless links. Fast TCP and TCP Westwood+...
This paper presents an effective popularity and segment based caching management scheme for streaming multimedia on proxy servers. In this scheme, either an initial portion or several parts of contents are cached at the proxy servers, and the size of the each content varies with popularities of the contents. Under the proposed scheme, initial latency and end-to-end network traffic which happens to...
Internet video on demand is a new application provided by peer to peer network. Thousands of users are using real multimedia streaming systems like PPlive and PPstream which are the killer applications in the Internet. But jitters are always happening during rush time especially when users are watching less popular videos with low bandwidth network. To improve this, a cache scheduling scheme based...
In this paper, we explore the "clustering" phenomenon in BT-like systems. A high clustering implies peers have a high tendency to exchange information with peers of the similar bandwidth type. We first show the clustering does exist in BT-like systems. Although high clustering is desirable for file sharing application, it may not be appropriate for multimedia streaming applications. We provide...
In peer-to-peer (P2P) overlay networks, source peers holding multimedia objects can transmit the multimedia objects to receiver peers. In this paper, we discuss parallel types of multi-source streaming (MSS) models where a receiver peer can receive primitive objects of a multimedia object from multiple source peers which can support enough. A multimedia object is realized in a sequence of primitive...
This paper describes UTFRC - utility-driven TCP-friendly rate control, a congestion control mechanism more suitable for streaming layered scalable video streams incest-effort networks than TFRC. UTFRC relies on the original TFRC for achieving a stable throughput, but uses the throughput outputted by TFRC only as a guideline and shapes this throughput, on a coarser granularity scale, according to media...
Data-driven (or swarming based) streaming is one of the popular ways to distribute live multimedia streaming traffic over peer-to-peer (P2P) networks. The efficiency and user satisfaction highly depend on the constructed overlays. The common neighbor selection algorithms in existing overlay construction schemes usually randomly select a fixed number of neighbors which satisfy the selection requirements,...
One of the major differences among current P2P solutions for multimedia streaming is the way they organize the exchange of multimedia data among their peers. We compare the performance of two of these organizations, namely, an unrestricted mesh using a tit-for-tat incentive policy and a directed mesh that allows peers to dynamically replace poorly performing parents. We first observe that both organizations...
Multimedia streaming is resource demanding. It may starve other applications such as file transfer sharing the network, for example, in a smart home. To address the problem, we apply fuzzy logic control to bound the bandwidth consumption of multimedia streams. We also differentiate the video quality for streams with different levels of importance. We have implemented our transmission rate control...
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