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Locality-Aware Chord Networks Based on Cloud-Assistance

Authors:
Chun-Hsin Wang
Cheng-Han Kuo

Keywords: P2P Networks; Cloud; Overlay Networks; Chord Networks

Abstract:
Peer-to-Peer (P2P) technologies have been widely applied in various network applications, such as BitTorrent, P2Plive, Skype, etc. Improving the performance of P2P networks has always been a topic of interest. The key to improving P2P networks is to solve the consistency problem, which states that the overlay network topology is not congruent to the physical network topology. The overlay network is a logical network topology built on existing physical networks. If overlay networks are constructed according to the location of peers, the consistency problem could be solved. In this paper, locality-aware Chord P2P networks based on cloud-assistance are proposed. A cloud database of mapping IP addresses onto geographical positions is built to completely manage the locality information of peers. Four new schemes of identification (ID) assignments associated with geographical positions of peers have been designed to construct the rings of Chord networks. The arrangement of peers on a ring is close to their physical positions. As a result, unnecessary searching routing can be reduced. Besides, a new download method which can select the nearest nodes to get resources has also been designed. The simulation experiments show the searching and downloading performance of our proposed locality-aware Chord networks can be improved.

Pages: 6 to 11

Copyright: Copyright (c) IARIA, 2017

Publication date: September 10, 2017

Published in: conference

ISSN: 2308-4340

ISBN: 978-1-61208-583-8

Location: Rome, Italy

Dates: from September 10, 2017 to September 14, 2017