A novel distributed data access scheme considering with link resources and metric in lambda grid networks

Ryota Usui, Hiroyuki Miyagi, Yutaka Arakawa, Satoru Okamoto, Naoaki Yamanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A link load balancing technique that uses a normalized link metric based on a new wavelength utilization and link metric is proposed. The new normalized link metric is a combination of a previous link metric and wavelength utilization. The shortest path algorithm selects the lowest normalized link metric, so that heavily loaded links are avoided if possible. Due to the development of WDM optical network technologies, a lambda grid system, which shares computing resources across a wide area optical network, has been proposed as a grid system. To reduce the influence of file damage and/or prevent particular storage servers from being over loaded, duplicate files are stored in several replica servers. Parallel downloading from these servers decreases downloading time and achieves load distribution. However, parallel downloading can create bottleneck links in the WDM network, since many connections may become used in common. In this paper, we propose a novel server selection method for parallel downloading in WDM networks. The server selection method creates link load balancing and suppresses bottleneck links. Computer simulations show that the proposed scheme can reduce bottleneck link number and the blocking probability by up to 90%. copyright

Original languageEnglish
Title of host publication2008 14th Asia-Pacific Conference on Communications, APCC 2008
Publication statusPublished - Dec 1 2008
Externally publishedYes
Event2008 14th Asia-Pacific Conference on Communications, APCC 2008 - Akihabara, Tokyo, United States
Duration: Oct 14 2008Oct 16 2008

Publication series

Name2008 14th Asia-Pacific Conference on Communications, APCC 2008

Other

Other2008 14th Asia-Pacific Conference on Communications, APCC 2008
CountryUnited States
CityAkihabara, Tokyo
Period10/14/0810/16/08

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Communication

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    Usui, R., Miyagi, H., Arakawa, Y., Okamoto, S., & Yamanaka, N. (2008). A novel distributed data access scheme considering with link resources and metric in lambda grid networks. In 2008 14th Asia-Pacific Conference on Communications, APCC 2008 [4773703] (2008 14th Asia-Pacific Conference on Communications, APCC 2008).