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Many unstructured peer-to-peer applications exhibit a characteristic of complex networks, such as power-law degree distribution. We are motivated by the fact that the high degree nodes are well connected each other and design a novel cluster-based search protocol to take advantage of cluster-based index replication. The search success rate is improved by one order of magnitude and the index storage...
The existing literature deals with the problems dealing with decentralized content-based P2P community formation and community-based search separately. Contrary to this approach, in this paper we propose a novel search algorithm that has both the capability to form the community structure as well as search it with maximum efficiency. The key contribution is to design a self-organized and adaptive...
Apart from files, P2P Networks can be used for sharing non-replicable and reusable (e.g. computational) resources. This paper explains why existing discovery mechanisms have low performance searching for those resources in random power-law degree distributions. While high-degree nodes become more popular, their resources are consumed, resulting into a power-law network topology with no more useful...
Unstructured Peer-to-Peer networks, such as Gnutella, are popular for certain applications because they do not require centralized directories and precise control over network topology or data placement. However, the network topology and the placement of files in the unstructured P2P networks are largely unconstrained. Hence, it is important to apply efficient search algorithm for locating resource...
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