Virtual fully connected WDM network: A high-performance single-hop architecture for metropolitan area networks

  • Authors:

  • Kang Xi;Shin'Ichi Arakawa;Masayuki Murata

  • Affiliations:

  • Graduate School of Information Science and Technology, Osaka University, 1-32 Machikaneyama, Toyonaka, Osaka 560-0043, Japan;Graduate School of Economics, Osaka University, 1-7 Machikaneyama, Toyonaka, Osaka 560-0043, Japan;Graduate School of Information Science and Technology, Osaka University, 1-32 Machikaneyama, Toyonaka, Osaka 560-0043, Japan

  • Venue:
  • Optical Switching and Networking
  • Year:
  • 2006

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Abstract

With the widespread use of broadband access technologies and the development of high-speed Internet backbones, the requirement for high-performance metropolitan area networks (MANs) is increasing. Traditional ring- or star-based metro networks are costly to scale up to high speed and cannot recover from multiple failures, while backbone solutions are too expensive to fit into the cost-sensitive metro market. This paper proposes a virtual fully connected (VFC) architecture for metro networks to provide high-performance node-to-node all-optical transportation. The architecture emulates a fully connected network by providing optical channels between node pairs without intermediate buffering, and thus realizes single-hop transportation and avoids expensive packet routers. In addition, a scheduling algorithm is developed for medium access control and dynamic bandwidth allocation, which achieves 100% throughput and provides a fairness guarantee. Simulations show that the VFC network achieves good performance under both uniform and non-uniform loads.