NDLI: Optimizing capacity-heterogeneous unstructured P2P networks for random-walk traffic

Content Provider	IEEE Xplore Digital Library
Author	Reddy, C. Leonard, D. Loguinov, D.
Copyright Year	2009
Description	Author affiliation: Department of Computer Science and Engineering, Texas A&M University, College Station, 77843 USA (Reddy, C.; Leonard, D.; Loguinov, D.)
Abstract	Existing algorithms for utilizing high-capacity nodes in heterogeneous P2P systems (e.g., [4], [13], [20]) often require unrealistically large node degree and high maintenance overhead in P2P networks with highly diverse node capacities and high churn. In this paper, we propose an unstructured P2P system that addresses these issues. We first prove that the overall throughput of search queries in a heterogeneous network is maximized if and only if traffic load through each node is proportional to its capacity. We then propose a system that achieves this traffic distribution by biasing search walks using the Metropolis-Hastings algorithm [5], [12] without requiring any special underlying topology. We finish the paper by comparing our method with Gia [4], where we find in simulation that the former outperforms the latter under all studied conditions, two novel saturation metrics introduced in this paper, and such end-to-end parameters as query success rate, latency, and query-hits.
Starting Page	41
Ending Page	50
File Size	858298
Page Count	10
File Format	PDF
ISBN	9781424450664
e-ISBN	9781424450671
DOI	10.1109/P2P.2009.5284552
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telecommunication traffic Peer to peer computing Traffic control Throughput Delay Computer science USA Councils Network topology Robustness Publishing
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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