In the design and implementation of the overlay architecture most peer-to-peer (P2P) systems rely on the underlay network to provide them with basic connectivity. Therefore, the intrinsic features of the underlay network determine the efficiency of the overlay. Accordingly, studying the interdependency of the overlay and underlay networks leads to a better understanding of P2P behaviour. We pre...

The aim of this article is to examine the relationship of largescale Peer-to-Peer (P2P) overlay networks and certain biological systems. In particular, we focus on organization mechanisms that are crucial to adjust and optimize the behavior of large-scale P2P systems in the face of a dynamic environment. We propose to adopt concepts and mechanisms of biological systems in order to extend their ...

P2P computing has emerged as a popular model for utilizing information and resource in Internet. It is built upon an overlay whose topology is independent of the underlying physical network. Because of the mismatch between the overlay and physical network, small number of logical hops may result in a long delay and excessive traffic. In this paper, we propose a universal mechanism-“node swap” t...

In the infrastructure-less disaster environment, the application of the peer-to-peer (P2P) group conference over mobile ad hoc network (MANET) can be used to communicate with each other when the rescue crews search the survivors but work separately. However, there still are several problems of in-time multimedia delivery in P2P-MANET: (1) MANET mobility influences the maintenance of P2P overlay...

Increasingly on the Internet, applications are supported by sets of loosely connected machines operating without any form of central coordination and more complex than classical distributed system. Peer-to-peer networking, a disruptive technology for large scale distributed applications, has gained widespread attention due to the successes of peer-topeer (P2P) content sharing, media streaming, ...

Peer-to-Peer (P2P) networks provide an alternative approach to distributed systems, relaxing the requirements for dedicated servers from the client-server model. A P2P network operates as an overlay at application layer, on top of the physical network. In the early years of P2P, most applications lacked mechanisms for enforcing a particular overlay topology. This resulted in inefficient communi...

Almost all recent researches on P2P systems focus on how to build a highly usable P2P overlay network. Researchers include small routing table, short query path and good robustness into their design objectives of overlay topology. In this paper, we present a general group theory method and define a new Cayley graph. Based on this Cayley graph, we propose a novel P2P overlay network called CHC, ...

Recently, various overlay networks have been widely deployed over physical IP networks. Since selfish behavior of overlay networks to satisfy demands of their applications and users often conflicts with each other, performance of the overall network system and quality of service offered to users easily deteriorate. To tackle the problem, our research group proposes the framework called overlay ...

Generic peer-to-peer (p2p) overlay networks like CAN, Chord, Pastry and Tapestry offer a novel platform for a variety of scalable and decentralized distributed applications. These systems provide efficient and fault-tolerant routing, object location and load balancing within a self-organizing overlay network. One important aspect of these systems is how they exploit network proximity in the und...