J4 ›› 2011, Vol. 38 ›› Issue (1): 22-27.doi: 10.3969/j.issn.1001-2400.2011.01.004

• Original Articles • Previous Articles     Next Articles

Hybrid genetic and tabu search algorithm for static virtual topology designs in three layers of optical networks

XU Zhanqi1;JIN Xing1;YANG Fan1;HAN Sen2   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    2. School of Energy and Power Eng., Wuhan Univ. of Technology, Wuhan  430070, China)
  • Received:2010-08-08 Online:2011-02-20 Published:2011-04-08
  • Contact: XU Zhanqi E-mail:zqxu@mail.xidian.edu.cn

Abstract:

Considering the fact that the SDH network and technology are widely used in practice, we study the static virtual topology design problem in IP over SDH over WDM(IP/SDH/WDM) optical networks, and propose a hybrid genetic and tabu search algorithm for virtual topology designs (HGTSA-VTD). The key elements within HGTSA-VTD are designed in detail, making this hybrid algorithm have the integrated advantages of the global search for genetic algorithms and local search for tabu search algorithms. Its effectiveness in resource utility has been verified by comparing the simulation results with the results by existing approaches used formerly on the NSFnet.

Key words: WDM optical network, virtual topology design, genetic algorithms, tabu search algorithm

CLC Number: 

  • TN915.03