Distributed Hashing-based Fast Discovery Scheme for a Publish/Subscribe System with Densely Distributed Participants 


Vol. 38,  No. 12, pp. 1134-1149, Dec.  2013


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  Abstract

Pub/sub system enables data users to access any necessary data without knowledge of the data producer and synchronization with the data producer. It is widely used as the middleware technology for the data-centric services. DDS (Data Distribution Service) is a standard middleware supported by the OMG (Object Management Group), one of global standardization organizations. It is considered quite useful as a standard middleware for US military services. However, it is well-known that it takes considerably long time in searching the Participants and Endpoints in the system, especially when the system is booting up. In this paper, we propose a discovery scheme to reduce the latency when the participants and Endpoints are densely distributed in a small area. We propose to modify the standard DDS discovery process in three folds. First, we integrate the Endpoint discovery process with the Participant discovery process. Second, we reduce the number of connections per participant during the discovery process by adopting the concept of successors in Distributed Hashing scheme. Third, instead of UDP, the participants are connected through TCP to exploit the reliable delivery feature of TCP. We evaluated the performance of our scheme by comparing with the standard DDS discovery process. The evaluation results show that our scheme achieves quite lower discovery latency in case that the Participants and the Endpoints are ensely distributed in a local network.

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  Cite this article

[IEEE Style]

S. Ahn, K. Kang, Y. Cho, N. Kim, "Distributed Hashing-based Fast Discovery Scheme for a Publish/Subscribe System with Densely Distributed Participants," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 12, pp. 1134-1149, 2013. DOI: .

[ACM Style]

Si-Nae Ahn, Kyungran Kang, Young-Jong Cho, and Nowon Kim. 2013. Distributed Hashing-based Fast Discovery Scheme for a Publish/Subscribe System with Densely Distributed Participants. The Journal of Korean Institute of Communications and Information Sciences, 38, 12, (2013), 1134-1149. DOI: .

[KICS Style]

Si-Nae Ahn, Kyungran Kang, Young-Jong Cho, Nowon Kim, "Distributed Hashing-based Fast Discovery Scheme for a Publish/Subscribe System with Densely Distributed Participants," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 12, pp. 1134-1149, 12. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880