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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 5, Iss. 12 — Dec. 1, 2013
  • pp: 1443–1455

Design of Light-Tree Based Optical Inter-Datacenter Networks

Rongping Lin, Moshe Zukerman, Gangxiang Shen, and Wen-De Zhong  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 5, Issue 12, pp. 1443-1455 (2013)
http://dx.doi.org/10.1364/JOCN.5.001443


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Abstract

Nowadays, people’s daily lives are increasingly dependent on Internet applications provided by cloud service providers that replicate their content among geographically distributed datacenters using inter-datacenter wide area networks to meet performance and reliability requirements. This paper provides means for efficient design of inter-datacenter networks with static traffic scenarios, where unicast and multicast connection requests are known a priori along with their start and end times. Also, the optical channel setup/teardown time is given. Integer linear programming (ILP) formulations that consider light-tree and lightpath connections are developed to minimize the network resource consumption. Since solving ILP formulations is time consuming for large networks, we also propose efficient heuristic algorithms. We demonstrate by simulations an advantage in efficiency for a light-tree based heuristic algorithm over its lightpath counterpart. This is due to its ability to construct and extend light-trees to groom more connections. Both heuristic algorithms perform very close to the corresponding ILP optimal results in the case of a small network.

© 2013 Optical Society of America

OCIS Codes
(060.4255) Fiber optics and optical communications : Networks, multicast
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Research Papers

History
Original Manuscript: July 12, 2013
Revised Manuscript: September 6, 2013
Manuscript Accepted: September 16, 2013
Published: November 27, 2013

Citation
Rongping Lin, Moshe Zukerman, Gangxiang Shen, and Wen-De Zhong, "Design of Light-Tree Based Optical Inter-Datacenter Networks," J. Opt. Commun. Netw. 5, 1443-1455 (2013)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-5-12-1443

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