Abstract”
The peer-to-peer (P2P) file-sharing applications are becoming increasingly popular and account for more than 70% of the Internetâ„¢s bandwidth usage. Measurement studies show that a typical download of a file can take from minutes up to several hours depending on the level of network congestion or the service capacity fluctuation. In this paper, we consider two major factors that have significant impact on average download time, namely, the spatial heterogeneity of service capacities in different source pe ....etc

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MINING FILE DOWNLOADING TIME IN STOCHASTIC PEER TO PEER NETWORKS
Abstract: On-demand routing protocols use route caches to make routing decisions. Due to mobility, cached routes easily become stale. To address the cache staleness issue, prior work in DSR used heuristics with ad hoc parameters to predict the lifetime of a page link or a route. However, heuristics cannot accurately estimate timeouts because topology changes are unpredictable. In this paper, we propose proactively disseminating the broken page link information to the nodes that h ....etc

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RESIDUAL-BASED ESTIMATION OF PEER AND LINK LIFETIMES IN P2P NETWORKS


ABSTRACT:

Existing methods of measuring lifetimes in P2P systems usually rely on the so-called Create-Based Method (CBM), which divides a given observation window into two halves and samples users “created” in the first half every time units until they die or the observation period ends. Despite its frequent use, this approach has no rigorous accuracy or overhead analysis in the literature. To ....etc

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Peer to Peer (P2P) Search Engine

World Wide Web (WWW) is emerging as a source of online information at a very faster rate.Itâ„¢ s content is considerably more diverse and certainly much larger than what is commonly understood. Information content in WWW is growing at a rate of 200% annually. The sheer volume of information available makes searching for specific information quite a daunting task. Search engines are efficient tools used for finding relevant information in the rapidly growing and highly dynamic web. There are quite a number ....etc

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DYNAMIC SEARCH ALGORITHM IN UNSTRUCTURED PEER-TO-PEER NETWORKS--PARALLEL AND DISTRIBUTED SYSTEMS

Designing efficient search algorithms is a key challenge in unstructured peer-to-peer networks. Flooding and random walk (RW) are two typical search algorithms. Flooding searches aggressively and covers the most nodes. However, it generates a large amount of query messages and, thus, does not scale. On the contrary, RW searches conservatively. It only generates a fixed amount of query messages at each hop but would take longer search time. We pr ....etc

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Efficient Approximate Query Processing in Peer-to-Peer Networks


Abstract”Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering large-scale ad hoc analysis queries, for example, aggregation queries, on these databases poses unique challenges. Exact solutions can be time consuming and difficult to implement, given the distributed and dynamic nature of P2P databases. In this paper, we present novel sampling-based tech ....etc

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Search and Replication in Unstructured Peer-to-Peer Networks
Disclaimer
• Results, statements, opinions in this talk do not represent Cisco in anyway
• This talk is about technical problems in networking, and does not discuss moral, legal and other issues related to P2P networks and their applications
Example systems:
– Napster, Gnutella;
– Freenet, FreeHaven, MajoNation, Alpine, ...
– JXTA, Ohaha, …
– Chord, CAN, “Past”, “Tapestry”, Oceanstore
Architecture Comparisons
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EVOLUTION OF PEER TO PEER DOWNLOADING
PEER TO PEER NETWORK
What is a peer to peer network?
A peer to peer network is a network that relies on the computing power & bandwidth of the participants on the network.
P2p networks are typically used for connecting nodes via largely ad_hoc connections.
Such networks are useful for sharing content files containing audio,video ,data & anything in digital format.



File Download / TransferTraditional Client-Server Downloading

Peer to peer file sharing


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1. INTRODUCTION
A new and growing technique in the world of the Internet is the Peer-to-Peer architecture, usually referred to as P2P, in which each node on a network is assumed a peer for other connected nodes to have node-to-node data communication and resource sharing. As the number of Internet users is increasing and their knowledge of Internet resources is developing, a more powerful and convenient tool to communicate is in demand. The P2P technique may provide such a tool.
1.1 The P ....etc

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