Date Added: Feb 2011
There are a variety of Peer-To-Peer (P2P) systems for sharing documents currently available. According to their data organization, P2P systems are classified into two categories: structured and unstructured P2P systems. In structured P2P systems, peers are organized according to some mapping techniques, e.g. hashing function. Whereas in unstructured P2P system, peers are connected to each others randomly; resources are not moved to other peers but hosted on site. Unstructured P2P systems offer a more flexible and autonomous environment, as they require less control for the placement of resources and peers. This paper focuses on experimenting on unstructured P2P systems. The challenge in unstructured P2P system is designing routing strategies that lead the user in finding the documents needed.