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A Gnutella inspired ubiquitous service discovery framework for pervasive computing environment

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5 Author(s)
Tianyin Xu ; State Key Lab. for Novel Software and Technology, Nanjing University, 210093, China ; Baoliu Ye ; Mitsunori Kubo ; Arata Shinozaki
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Pervasive computing, the new distributed computing paradigm aiming at providing services anywhere anytime, poses unique challenges on service management and discovery. In this paper, we propose a new pervasive computing framework named USDM-PerComp by using a Web service server/directory server (WSS/DS) based two-level hierarchical topology to address the challenges involved. DSs within USDM-PerComp autonomously form a peer-to-peer (P2P) overlay. We present a Gnutella inspired distributed algorithm to support service discovery over the resulted P2P overlay, and further implement a service crawler using mobile agent techniques to perform the discovery and invocation. With the service crawler, service composition could be done automatically and spontaneously without any user concern. Besides, we develop a distributed JPEG encoding application to verify the practicability of our proposal. Our experience confirms the scalability and flexibility of USDM-PerComp. The pervasive applications could be easily as well as efficiently created under USDM-PerComp environment.

Published in:

Computer and Information Technology, 2008. CIT 2008. 8th IEEE International Conference on

Date of Conference:

8-11 July 2008