TY - JOUR ID - 3537 TI - A Hybrid Solution Method for Hub-and-Spoke Network Design under Uncertainty A Case Study to Design Optical Fiber Network in Iran JO - AUT Journal of Modeling and Simulation JA - MISCJ LA - en SN - 2588-2953 AU - Ebrahimi, Seyed Babak AU - Sharifi, Abdollah AU - Nezhad-Afrasiabi, maryam AU - Mirkhani, Seyed Mohammad AD - Faculty Of Industrial Engineering, K.N.Toosi University Of Technology, Tehran, Iran, AD - Faculty of Industrial engineering, Department of Industrial Engineering‎, K.N.Toosi University of Technology AD - Industrial engineering Ph.D. Student, Department of Industrial Engineering & Management Systems‎, Amirkabir University of Technology (Tehran Plytechnic) AD - Financial engineering MSc Student, Department of Industrial Engineering‎, K.N.Toosi University of Technology, Tehran, Iran Y1 - 2019 PY - 2019 VL - 51 IS - 2 SP - 179 EP - 190 KW - network design KW - hub Location KW - uncertain demand & setup cost KW - Fuzzy KW - VIKOR DO - 10.22060/miscj.2019.15977.5149 N2 - Supply chain is an integrated system of facilities and activities. Gaining the optimum design of demand satisfaction network is one of the most important live issues in the decision making problems category. Most of previous studies considered unreal assumptions such as the lack of capacity constraints to satisfy demand in the network and in hubs. By considering the nature of the case that have been studied in this research, the assumption of unlimited capacity to satisfy the demand is justified. Another common assumption in hub location problems is the lack of direct connection between the nodes. In this research and in real world problems would be seen that the direct link between the nodes can be effective in reducing system costs and increase the efficiency of the network. The other innovations of current research is considering uncertain nature of the demand data, oscillation and changes in costs anticipation and actual hub establishing costs, fuzzy numbers are used to represent these values. Problem modeling is held in a fuzzy state and a hybrid method is represented to solve the problem. At first, defuzzification of the model is taken place. Afterwards, all possible answers are considered with the help of the Genetic Algorithm. At last, the optimum case were chosen by using VIKOR ranking method. Calculation results for the designing of optical fiber network between cities are showing good and acceptable performance of the proposed method in an acceptable solving time UR - https://miscj.aut.ac.ir/article_3537.html L1 - https://miscj.aut.ac.ir/article_3537_bade16e3cc3520b1d8aef916d664e376.pdf ER -