Wiki systems are becoming an important part of the information system of many organisations and communities. This introduce the issue of the data availability in case of failure, heavy load or off-line access. We propose to replicate wiki pages across a P2P network of Wiki engines. We address the problem of consistency of replicated wiki pages in the context of a P2P Wiki system. In this paper,...

The ever increasing growth of peer-to-peer networks calls for effective construction of overlays keeping in view the properties and capabilities of the underlay network. The capabilities of the peers participating in the network can be used effectively to bias the neighbor selection and improve the network performance by assigning more responsibility to nodes with high capabilities. This system...

The ever-increasing popularity of peer-to-peer (P2P) systems provides a strong motivation for designing a dependable P2P system. Dependability in P2P systems can be viewed from two different perspectives, namely system reliability (the availability of the individual peers) and system performance (data availability). This paper looks at dependability from the viewpoint of system performance and ...

Peer-to-peer Web caching has attracted a great attention from the research community recently, and is one of the potential peer-topeer applications. In this paper, we systematically examine the three orthogonal dimensions to design a peer-to-peer Web caching system, including the caching algorithm, the document lookup algorithm, and the peer granularity. In addition to the traditional URL-based...

often utilize a decentralized network supported by “peer-to-peer” (P2P) technology, which is a computer network that relies on the computing power of and the participants in the network. Such networks are useful for sharing audio and video data or anything in digital format. P2P technology serves as an infrastructure for virtual knowledge communities, where interactive relationships are establi...

Data access performances over a Peer-to-Peer (P2P) network is a critical issue since downloading time remains the longest phase of P2P usage by end-user. In the present effort, we propose an innovative approach called PeerFecT (Peer-to-peer with Fec dissemination Technique) based on an erasure code, often called Forward Error Correction (FEC) code, to speed-up data access into P2P networks. The...

We address the problem of labeling the nodes of a tree such that one can determine the identifier of the least common ancestor of any two nodes by looking only at their labels. This problem has application in routing and in distributed computing in peer-to-peer networks. A labeling scheme using Θ(log n)-bit labels has been previously presented by Peleg. By engineering this scheme, we obtain a v...

Sharing huge databases in distributed systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer sufficient. A more efficient approach is to rely on compact database summaries rather than raw database records, whose access is costly in large distributed systems. In this paper, we propose PeerSum, a new service for managing summaries ov...

Due to the content bundling and the dramatic increase of content size, the download performance in peer-to-peer networks has become a research focus again recently. In this paper, we propose a novel approach to improve the download performance based on the classical space-time trade-off. With the approach, a peer can speed up local downloads in peer-to-peer networks by contributing a portion of...

Mobile messaging is evolving beyond SMS (Short Message Service) text messaging with the introduction of MMS (Multimedia Messaging Service). In the past, such a scheme is used for peer-to-peer communication. Messages are generally displayed on a cellular phone with a limited-sized screen. However, such a visualizing process is not suitable to broadcast real-time SMS/MMS messages to people in pub...