A method of fuzzy preference relation to authorize the worldwide interoperability for microwave access license in Taiwan |
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Authors: | Tsung-Han Chang |
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Institution: | Department of Information Management, Kao-Yuan University, 1821, Jhongshan Road, Lujhu District, Kaohsiung City 821, Taiwan |
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Abstract: | This study proposes a preference relation based evaluation framework to help the National Communication Commission (NCC) in Taiwan authorize a worldwide interoperability for microwave access (WiMAX) license under a fuzzy environment where the uncertainty, subjectivity and vagueness are dealt with linguistic variables parameterized by triangular fuzzy numbers. This study applies the fuzzy multi-criteria decision making approach to determine the importance weights of evaluation criteria and consolidate the performance ratings of possible alternatives. Aggregated the evaluators’ opinions toward the criteria and alternatives, the fuzzy preference relation approach is utilized to obtain the non-dominated degree of each alternative for the decision makers to make a final decision. Simultaneously, an empirical case involving sixteen quantitative and fifteen qualitative evaluation criteria, thirteen telecommunication applicants assessed by twelve specialists from various fields of telecommunication industry in Taiwan is solicited to demonstrate the proposed approach. |
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Keywords: | Worldwide interoperability for microwave access (WiMAX) License authorization Fuzzy sets theory Fuzzy preference relation Multi-criteria decision making Non-dominated degree |
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