Abstract
Resource location is the most important issue for Peer-to-Peer (P2P) system and flooding is the fundamental mechanism for unstructured P2P systems. Redundant messages will exponential growth with flooding scope increasing which severely influences the scalability of the system. In this paper, a new P2P model based on isolated broadcast domains is given to reduce the amount of redundant messages by limiting the radius of messages transmitted. Analysis and experiments show that this model can guarantee coverage of nodes and significantly reduce the amount of redundant messages generated.
Highlights
P2P is an application mode built on Internet to share resource includes files, hardware and other information among nodes and emphasizes the equal status of nodes in the system
In this paper we give the search algorithm based on isolated broadcast domain (SAOIBD) to reduce redundant messages
Such as in unstructured P2P systems, flooding is used to search files, in some routing algorithm to propagate routing information and especially in martial application, if the network is severely damaged, in order to ensure the robustness of network, flooding is Province under Grant 092300410201 and Zhengzhou Science and Technology Research Program under Grant 0910SGYN12301-6
Summary
P2P is an application mode built on Internet to share resource includes files, hardware and other information among nodes and emphasizes the equal status of nodes in the system. Napster is the first P2P system which depends on a central index server to locate resource. The question of Napster is the existence of central index server which makes it is not a pure P2P system and depends on the server to locate resource. Instead of maintaining indexes in centralized system or mapping resource to keys, node in decentralized system such as Gnutella [7], broadcasts query to its neighbors and this way to propagate messages is flooding. Based on nodes’ degree distribution in Gnutella network presents a small world and power law distribution characteristics [9], algorithm of use the power-law distribution of nodes’ degree properties to search resource was proposed by Adamic et al in literature [10,11]. In this paper we give the search algorithm based on isolated broadcast domain (SAOIBD) to reduce redundant messages
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