This paper presents the design and evaluation of a highly scalable, decentralized and self-organizing peer-topeer network architecture based on the multi-mesh topology. Our network automatically adapts to dynamic node arrivals, departures and failures. Each node maintains a fixed set of neighbor connections, regardless of the size of the network. This demonstrates the scalability of the network...

Decentralized and unstructured peer-to-peer (P2P) networks such as Gnutella are attractive for Internet-scale information retrieval and search systems because they require neither any centralized directory nor any centralized management of overlay network topology and data placement. However, due to this decentralized architecture, current P2P keyword search systems lack useful global knowledge...

Video streaming in Mobile Ad hoc NETwork (MANET) is a real challenge due to frequent changes in network topology, and sensitiveness of radio links. Recent approaches make use of Peer-to-Peer (P2P) technologies to combat these challenges because the technologies have been already found to be effective for content delivery on the Internet. However, as the Internet and MANET operate differently, t...

Several structured peer-to-peer networks have been created to solve the scalability problem of previous peer-to-peer systems such as Gnutella and Napster. These peer-to-peer networks which support distributed hash table functionality construct a sort of structured overlay network, which can cause a topology mismatch between the overlay and the underlying physical network. To solve this mismatch...

Recently, there has been a growing interest in peer-to-peer networks, sparked by the popularity of file sharing applications such as Napster and Gnutella. A typical characteristic of a peer-to-peer system is that all the nodes are equal participants in the network. Gnutella is an example of a ‘pure’ peer-to-peer system, being fully distributed where all nodes are equal and no special nodes with...

We are in the process of building a large-scale peer -to-peer simulator. In this paper, we discuss common aspects of existing peer-to-peer systems that required our attention in the design of our simulator. We provide details on peer-to-peer classification, network topologies, evolution, event handling and communication. We also describe features that figured prominently in the design of our si...

In mobile ad-hoc peer-to-peer (M-P2P) networks, frequent network partitioning leads to typically low data availability, thereby making data replication a necessity. This work proposes EcoRep, a novel economic model for dynamic replica allocation in M-P2P networks. EcoRep performs replica allocation based on a data item’s relative importance, which is quantified by the data item’s price in terms...

In the past few years numerous peer to peer file sharing, or more generally content distribution, systems have been designed, implemented, and evaluated via simulations, real world measurements, and mathematical analysis. Yet, only a few of them have stood the test of time and gained wide user acceptance. BitTorrent is not just one such system; it holds the lion’s share among them. The reasons ...

In this paper we propose a new practical P2P system based on a full transposition network topology named TRANS-Net. Full transposition networks achieve higher fault-tolerance and lower congestion among the class of transposition networks. TRANS-Net provides an efficient lookup service i.e. k hops with high probability where k satisfies 2 (log ) (log ) n m k m , where m denotes the number of sys...

Bitcoin is a popular alternative to fiat money, widely used for its perceived anonymity properties. However, recent attacks on Bitcoin’s peer-to-peer (P2P) network demonstrated that its gossip-based flooding protocols, which are used to ensure global network consistency, may enable user deanonymization— the linkage of a user’s IP address with her pseudonym in the Bitcoin network. In 2015, the B...