S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Industrial Engineering (산업공학과) Journal Papers (저널논문_산업공학과)
WDM VWP 네트워크 설계 모형 및 알고리즘 연구
A study on Modeling and Algorithm for WDM VWP Network Design
- 이희상; 홍성필; 송해구
- Issue Date
- Journal Of the Korean Institute of Industrial Engineers, 26(4), 296-305
- Virtual wavelength path (VWP) is the optical path when a wavelength conversion is possible in a wavelength division multiplexing (WDM) network that is transmission infrastructure for the next generation high speed backbone networks. To achieve efficient design for VWP networks, we must consider VWP routing, wavelength assignment, and wavelength conversion while satisfying many technical constraints of the WDM networks. In this study we propose an integrated model for efficient VWP design in WDM networks. We also develope a 3-phase algorithm, each of which deals with routing, wavelength assignment and route and wavelength reassignment, respectively. In our computational experiments, phase 1 algorithm can solve the problem to the optimality for medium size test networks. Phase 2 algorithm is an efficient heuristic based on a reduced layered network and can give us an effective wavelength assignment, Finally, phase 3 algorithm reconfigure W P routing and its wavelength assignment to concentrate wavelength conversion nodes in the suggested VWP network.