ZRR-P2P: Zone-Based Mechanism for Data Replication and Research Optimization in Unstructured P2P Systems

Popularity-Based Replication Strategy in Unstructured P2P File Sharing Systems

Peer-to-Peer (P2P) networks have shown to be an efficient and successful mechanism for file sharing over the internet. The unstructured P2P systems usually use a blind search method to find the requested data object. Observations have shown that a few of peers share most of data. In order to increase the success rate of blind search and data availability and load balancing, replication techniqu...

Data Replication in P2P Systems

In a peer-to-peer (p2p) system, a large number of nodes share data with each other. The participation of nodes is highly dynamic; nodes may enter and leave the system at will. Since, it is not possible to maintain links with all nodes, for performance as well as for privacy and anonymity reasons, each node maintains links with a selected subset of other nodes, thus forming an overlay network. A...

Unstructured P2P Search Mechanism Based on Ant Colony Optimization

Though flooding-based search mechanism has been used extensively in unstructured peer-to-peer network such as Gnutella, the mechanism is not scalable and as a consequence, it consumes a high amount bandwidths and resources. Because of the strong similarities between self-organizing behaviors of ant colonies and self-organization communications in P2P networks, a search algorithm based on Ant Co...

Autonomous Replication for High Availability in Unstructured P2P Systems

We consider the problem of increasing the availability of shared data in peer-to-peer (P2P) systems so that users can access any content, regardless of the current subset of online peers. In particular, we seek to conservatively estimate the amount of excess storage required to achieve a practical availability of 99.9% by studying a decentralized algorithm that only depends on a modest amount o...

Near-Optimal Replication in Unstructured P2P Networks