With a sudden surge in demand for live video streaming using peer to peer (P2P) network, there has been a rise of traffic in media transmission applications that employ this P2P approach. P2P is a decentralized media communication method which is more cost effective, and scalable. However, the traditional peer to peer network architecture has several limitations, and overlay construction is one...

⎯ This paper studies the impact of peer-to-peer (p2p) applications on network operators. P2p applications affect the way network resources are used, changing traffic behaviour at access, edge and peering levels. In particular, they make up overlay networks with topology decoupled from the underlying physical networks: a consequence is inefficiency and higher link loads at edge and peering level...

P2P network is factually an overlay network for distributed object store, search and sharing. This paper will present a survey about it’s recent. First, we will introduce a simple definition of P2P, and define some common operation procedures in P2P. Second, P2P performance metric will be discussed in order to understand and differentiated the practical P2P architectures and protocols. Third, t...

Peer-to-peer network overlays have mostly been designed to support search over document names, identifiers, or keywords from a small or controlled vocabulary. In this paper we propose a content-based P2P network overlay for full-text federated search over heterogeneous, open-domain contents. Local algorithms are developed to dynamically construct a network overlay with content-based locality an...

Overlay networks, such as P2P, Grid, and CDN, have been widely deployed over physical IP networks. Since simultaneous overlay networks compete for network resources, their selfish behaviors to improve their application-oriented QoS disrupt each other. To enhance the collective performance and improve the QoS at the application level, we consider so-called the overlay network symbiosis where ove...

The formation of unstructured overlays without considering the underlying physical network properties introduces a substantial amount of redundant traffic into the P2P network. Also the frequent changes to the overlay topology and message overhead involved in maintaining the P2P overlays affects the performance of the system. By optimizing the routes traversed by the peers during the communicat...

Peer-to-peer (P2P) worms exploit common vulnerabilities in member hosts of a P2P network and spread topologically in the P2P network, a potentially more effective strategy than random scanning for locating victims. This paper describes the danger posed by P2P worms and initiates the study of possible mitigation mechanisms. In particular, the paper explores the feasibility of a self-defense infr...

As structured p2p systems becomes largely deployed, the size of the network becomes large enough that any kind of churn has a significant influence on the performance of such overlay. In structured p2p systems, peers create interactive link with other peers called neighbours that both depend on and influence each other. While peers trust each other’s to delivers services, the network effects ex...

In peer-to-peer (P2P) networks it is a central problem to maintain a so called overlay network with certain desired properties. An overlay network is defined by logical connections (i.e., the ”who knows whom” relation) between peers over an underlying physical network. If node i is connected to node j in an overlay network, it means that node i knows the address of j and so it can send messages...

To provide application-oriented network services, a variety of overlay networks are deployed over physical IP networks. Since they share and compete for the same physical network resources, their selfish behaviors affect each other and, as a result, their performance deteriorates. Our research group considers a model of overlay network symbiosis, where overlay networks coexist and cooperate to ...