P2P is a popular networking paradigm in today’s internet. As such, many research and development efforts are geared toward services that can be useful to the users of P2P networks. This paper is focused on the content-based publish/subscribe service and our problem is to devise an efficient mechanism that enables this service in any given P2P network of cooperative nodes. Most techniques requir...

The peers in a Peer-to-Peer (P2P) system arrange themselves in a virtual network called the overlay network. The overlay network sits above the underlying physical network and is used to search for resources and peers, and to route messages between peers. The topology of the overlay network is the graph whose vertices are the peers and whose edges are the connections between the peers. The choi...

In this paper, we consider large-scale high-bandwidth on-demand media streaming in a dynamic and heterogeneous environment. We present MetaStream, a scalable and distributed content discovery protocol that enables clients across the Internet to self-organize into a topology-aware overlay network, in which they can “cache and relay” a stream among nearby peers. We present the design and implemen...

The Peer-to-Peer networks are very popular in decentralized information retrieval; however, decreasing the network traffic generated by the broadcast messages is still an open question. There are some semantic approaches that implements metadatabased routing or node selection as a new layer on existing protocols. However, the high connectedness of such networks could decrease the number of succ...

Topological structure of peer-to-peer (P2P) networks affects their operating performance. Thus, various models have been proposed to construct an efficient topology for the P2P networks. However, due to the simultaneous failures of peers and other disastrous events, it is difficult to maintain the originally designed topological structure that provides the network with some performance benefits...

Peer-to-peer (P2P) systems have shown enormous potential in delivering live streaming content for both IPTV and video conferencing. The fundamental capacity limits of the supported streaming rate by P2P, however, remains unclear, especially with topology constraints. We develop the first unifying framework and approximation algorithms that can compute the streaming capacity of a P2P network ove...

Unstructured peer-to-peer networks are frequently used as the overlay in various middleware toolkits for emerging applications, from content discovery to query result caching to distributed collaboration. Often it is assumed that unstructured networks will form a power-law topology; however, a power-law structure is not the best topology for an unstructured network. In this paper, we introduce ...

1389-1286/$ see front matter 2008 Elsevier B.V doi:10.1016/j.comnet.2008.11.007 * Corresponding author. Tel.: +39 011 6706718. E-mail address: [email protected] (M. Sereno). Knowledge of emergent properties of existing peer-to-peer file-sharing communities can be helpful for the design and implementation of innovative peer-to-peer protocols/services that exploit autonomicity, self-configuratio...

Modeling peer-to-peer (P2P) networks is a challenge for P2P researchers. It is the key to provide insight into the nature of the underlying system and building a successful model able to generate realistic topologies for simulation purpose. In this paper, we provide a detailed analysis of large-scale P2P network topology, using Gnutella as a case study. First, we re-examine the power-law distri...

Peer-to-peer systems become a promising alternative for traditional server-client system to providing video streaming; the topology is the one of most important part of these systems. This paper talking about the simple concept of topology in p2p live video streaming and presents a review for p2p live video streaming topology, in this paper three main types of topology that most used in p2p liv...