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이영호,김정헌,김영부,이순석,강국창 한국경영과학회 2003 한국경영과학회지 Vol.28 No.1
This paper is concerned with a new techno-economic modeling of ATM based high-speed networks. Coupled with advances of technology, the rapid development of new telecommunication services significantly increases the magnitude of risk in making and investment decision. Naturally, the success of techno-economic modeling depends on how effectively we manage underling risk factors such as cost and technology. To deal with risk factors, we need to rely on modern decision and risk analysis implementing mathematical optimization for solving a complex capacity expansion problem of telecommunication systems during the planning period. We provide a case study that will enhance out understanding of the techno-economic analysis for emerging telecommunication systems.
그물구조 WDM 망 설계 알고리즘과 망 설계 시스템 연구
이영호,장용원,박노익,이순석,김영부,조기성 한국경영과학회 2005 韓國經營科學會誌 Vol.30 No.1
In this paper, we deal with a mesh network design problem arising form the deployment of WDM for the optical internet. The mesh network consists of mesh topology for satisfying traffic demand while minimizing the cost of WDM, OXC, and fiber cables. The problem seeks to find an optimal routing of traffic demands in the network such that the total cost is minimized. We formulated the problem as a mixed-integer programming model and devise a tabu search heuristic procedure. Also we develop an optical internet design system that implements the proposed tabu search heuristic procedure. We demonstrate the computational efficacy of the proposed algorithm, compared with CPLEX 8.0.