The enormous popularity of peer-to-peer (P2P) applications and the increased use of mobile devices make running P2P applications on mobile ad hoc networks (MANETs) natural. However, simply applying existing P2P overlay techniques, which are designed for wired networks, to MANETs is undesirable due to the differences between the two types of networks. In P2P systems, peers are often selfish rath...

In this paper, we focus on how to construct an efficient unstructured P2P system. The main contributions of our proposal are two-fold. First, aiming at alleviating the topology mismatch problem between the P2P logical overlay network and the physical underlying network, we proposed a Topology-aware Multi-cluster Overlay (TMO) architecture where peers self-organize into clusters based on network...

We consider the problem of collaborative search across a large number of digital libraries and query routing strategies in a peer-to-peer (P2P) environment. Both digital libraries and users are equally viewed as peers and, thus, as part of the P2P network. Our system provides a versatile platform for a scalable search engine combining local index structures of autonomous peers with a global dir...

Distributing large video files or operating system images over the Internet requires file servers with high bandwidth and large storage capacity. Overlay networks, including content distribution networks (CDN) and peer-topeer (P2P) systems, are promising network models for large file distributions. Both CDN and P2P leverage bandwidth and storage resources between content distribution servers an...

With the popularity of P2P (Peer-to-Peer) network applications, active P2P worms become one of the most important newly threat of the network security. In this paper, the propagation process of active P2P worms are studied by a dynamic model over the overlay topology which modeled as a power-law undirected graph. Firstly, GLP power law generator is used to generate power law topologies to repre...

An overlay network is a logical high-layer network built over the well-established IP network for creating new networkbased services. Owing to its capabilities of a flexible use of the underlying networks and fast deployment of new services, various overlay networking technologies like P2P (peer-to-peer network) and IP-VPN (virtual private network) have been actively developed and introduced in...

Peer-to-peer (P2P) systems account for more than half of Internet traffic today, and an increasing number of user applications, e.g., Bittorrent, eDonkey, Joost, Skype, GoogleTalk, and P2P-TV, rely on P2P methodology. P2P systems build overlays at the application layer, independently of Internet routing and ISP topologies. This leads to measurement traffic overhead and routing inefficiencies fo...

Peer-to-peer (P2P) computing is a networking and distributed computing paradigm which allows the sharing of computing resources and services by direct, symmetric interaction between computers. With the advance in mobile wireless communication technology and the increasing number of mobile users, peer-to-peer computing, in both academic research and industrial development, has recently begun to ...

WebVR, a multi-user online virtual reality engine, is introduced. The main contributions are mapping the geographical space and virtual space to the P2P overlay network space, and dividing the three spaces by quad-tree method. The geocoding is identified with Hash value, which is used to index the user list, terrain data, and the model object data. Sharing of data through improved Kademlia netw...