Peer-to-Peer (P2P) streaming has become an increasing popular approach for one-to-many multimedia streaming applications , mainly because it does not require any special support (e.g., IP multicast or any content distribution infrastructure) from the network. A common theme in P2P streaming systems is that participating peers form an overlay where each peer receives content from one (or multipl...

A peer-to-peer (p2p) system provides the networking substrate for the execution of distributed applications. It is made of peers that interact over an overlay network. Overlay networks are highly dynamic, as peers can join and leave at any time. Traditional process calculi, such as π-calculus, CCS and others, seem inadequate to capture these kinds of networks, their routing mechanisms, and to v...

Content Delivery Networks (CDNs) utilizing peer-to-peer (P2P) technology have been developed and deployed to achieve high-quality content delivery over the Internet. Since the P2P CDNs do not take into account the routing policy and the economics among Autonomous Systems (ASes), P2P CDNs consume a larger amount of network resources. In this paper, we propose two types of overlay routing metrics...

Peer-to-peer (P2P) file sharing systems such as Gnutella have been widely acknowledged as the fastest growing Internet applications ever. The P2P model has many potential advantages including high flexibility and server-less management. However, these systems suffer from the well-known performance mismatch between the randomly constructed overlay network topology and the underlying IP-layer top...

Peer-to-peer (P2P) is a distributed system without any centralized control or hierarchical organization nodes organize itself in a dynamic way. It allows different applications to achieve efficient and simple file sharing. Without any authentication adversary nodes can spoof the identity and spoil the integrity by falsifying the messages in the overlay. This enables malicious nodes to launch ma...