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There are two main scalable methods for streaming live video over the Internet: Content Delivery Networks (CDNs) and Peer-to-Peer (P2P) networks. Though both have their own problems, P2P streaming systems challenge delivering video with constant quality and CDNs approaches require deployment of large number of servers throughout the Internet that is costly. Recently, using hybrid architectures based...
The massive exploitation of P2P networks and the deployment of the video streaming services is bringing significant challenges for the service providers and leading to the network efficiency problem to utilize available network resources. In this paper, we propose an ISP-driven P2P framework that enables the better interaction among the ISPs and the P2P application providers. In this framework, the...
Peer to peer based live multimedia streaming systems over the Internet have been gaining popularity these days because they can be easily deployed without router based IP multicast capabilities. However, the peers frequently join and leave the system so that some peers may experience service disruptions, which degrade the overall quality and reputation of the services. In this situation, a hybrid...
Accurate, real time identification of P2P traffic is especially important for network management, because they seriously affect QoS of normal network services. In this paper, we propose an omnibus approach to identify Bit Torrent (BT) traffic in real time. We apply application signatures to identify unencrypted traffic. And for those encrypted BT traffic, we propose a message stream model according...
In this paper, we propose a new intersection-based geographical routing protocol, called delay tolerant routing protocol (DTRP) that adapts to the changes in the local topology within city environments. DTRP is based on an effective selection of road intersections through which a packet must pass to reach the gateway to the Internet. The selection, in such delay tolerant VANETs, is made in a way that...
Overlay multicast is an effective approach to the problem of streaming distribution. Other approaches proposed for streaming, i.e., unicast transmission and IP multicast have several drawbacks. The former method is not scalable with the growing number of users. The latter method - IP multicast - requires strong cooperation with ISPs (Internet Service Providers) what is not always realizable due to...
In recent years, the concept of autonomicity has been proposed to solve the complexity issues of the network and reduce the manual intervention. The self-* properties of the autonomic network, such as self-configuration, self-healing, self-optimizing and self-management, enable the network to adapt to the heterogeneous and complex network environments. On the other hand, with the rapidly growing demand...
Internet usage has changed, and the demands on the broadband access networks have increased, both regarding bandwidth and QoS. Characterizing the traffic, as seen by a broadband access network, can help understanding both the demands of today and the demands of tomorrow. In this paper we analyze traffic measurements from a Swedish municipal broadband access network and derive corresponding user behavior...
Internet-based video streaming applications is becoming more and more popular and attract millions of online viewers every day. The incredible growth of viewers, dynamics of participants, and high video quality-of-service (QoS) requirement pose scalability, availability and low-latency challenges to peer-to-peer (P2P) live video streaming systems. Tree-based systems have low-delay but are vulnerable...
Numerous studies based on complex measurement platforms have been carried out for over ten years now in order to discover the Internet topology on domain level. It turns out that this topology exhibits certain invariant properties such as a distribution of node degree. This distribution follows a power law. Moreover, the revealed topology is hierarchical. The hierarchy is caused by commercial contracts...
With the increasing of “resource hungry” applications in Internet, to ensure the client's QoS is a challenge. P2P-CDN is a content distribution network which is a combination technology of P2P and CDN. The edge servers of P2P-CDN form a P2P network to make the collaborations between the edge servers more efficient. However, the lookup algorithm of the traditional P2P network is not appropriate for...
Due to the increasing volume of multimedia traffic on the Internet nowadays, the traditional client-server architecture may face scalability and deployment cost problems when the number of subscribers grows large. To tackle these problems, more and more media streaming services, such as IPTV are deployed based on Peer-to-Peer (P2P) architecture. According to the current Internet infrastructure, most...
Providing streaming media service over the Internet is challenging. Since this requires high communication bandwidth for delivery. How to avoid the bottleneck of the streaming media service with the use of P2P system has become a hotspot. In this paper, we review the existing caching management and propose a novel cache allocation fit for P2P streaming media system. Our approach allows the system...
In this paper, we propose a P2P-based content distribution mechanism for video-on-demand service in IPTV. Different from traditional P2P-based content distribution mechanisms, our solution mainly focuses on how telecom operators utilize P2P technology to construct/enhance their own content delivery network for IPTV. The proposed mechanism takes into account the influence on the design of P2P mechanism...
As VoIP applications become increasingly popular, voice quality remains the user's biggest concern. Peer-to-Peer network can potentially obtain qualified relay nodes (QRNs) to make path switching when the QoS of a default path degrades. Locating quality relay nodes rapidly and inexpensively however is a very challenging task. In this paper, we design and develop a sophisticated system to take snapshots...
Providing the required quality of service (QoS) for clients in a wireless mesh network (WMN) is a challenging task. This is due to the complex architecture of the WMN and unpredictable behavior of the wireless links and the intermediate nodes. This can be alleviated by introducing a cognitive mechanism within the WMN. In this paper, a WMN is developed, where the data traffic is forwarded in a cognitive...
Future Internet (FI) research and development threads have recently been gaining momentum all over the world and as such the international race to create a new generation Internet is in full swing: GENI, Asia Future Internet, Future Internet Forum Korea, European Union Future Internet Assembly (FIA). This is a position paper identifying the research orientation with a time horizon of 10 years, together...
P2PTV refers to television media streams being distributed to large numbers of viewers on the Internet via peer-to-peer overlay networks. In the design of P2PTV systems, there is a fundamental trade-off between the better Quality-of-Service (QoS) desired by the viewers and the lower resource consumption preferred by the P2PTV distributors as well as the internet service providers (ISPs). This trade-off...
Despite the significant body of research that has been conducted on quality of service (QoS), the notion of a dominant approach to end-to-end (E2E) QoS remains elusive. Beyond the ever present issue of deployment, the complexity and limited speed of resource negotiation arising from per-hop or per-domain interactions limit the general utility of the existing approaches. In this paper, we propose a...
Recent studies indicate that the Internet-related energy consumption represents a significant, and increasing, part of the overall energy consumption of our society. The largest contribution to this consumption is due to Internet edge devices. Typically, users leave their PCs continuously on for satisfying the connectivity requirements of file sharing P2P applications, like BitTorrent. In this paper...
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