Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems
碩士 === 國立清華大學 === 通訊工程研究所 === 100 === In this thesis, we consider the fairness issue in the resource allocation scheme for cellular downlink OFDMA systems. The conventional max-min fair approach simply leads to an equal rate result for each user. Consequently, the different rate demands among users...
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ndltd-TW-100NTHU56501112015-10-13T21:27:24Z http://ndltd.ncl.edu.tw/handle/41112495119809452787 Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems 考慮最低機會成本之可調式公平資源分配於多用戶正交分頻多工系統 曹哲儒 碩士 國立清華大學 通訊工程研究所 100 In this thesis, we consider the fairness issue in the resource allocation scheme for cellular downlink OFDMA systems. The conventional max-min fair approach simply leads to an equal rate result for each user. Consequently, the different rate demands among users are not well taken care of. On the other hand, the fairness and the overall throughput trade off. The fairness index is adjustable and the equal-rate fairness is one of the special case. In this thesis, the max-min weighted surplus rate fairness is presented. In this formulation, the adjustable fairness and different rate demands for individual user are considered. Since the problem is NP-hard, a resource allocation algorithm for general max-min problem is proposed. In this algorithm, we take care of conflicts in subcarrier assignments and design a penalty criteria to explore the opportunity cost, As result, better throughput-fairness region is achieved. The mathematical analysis for the proposed algorithm is devised. The effectiveness of the proposed algorithm has been verified numerically under various channel models with comparison to the conventional Greedy and Vogel's approaches. 吳仁銘 2012 學位論文 ; thesis 47 en_US |
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碩士 === 國立清華大學 === 通訊工程研究所 === 100 === In this thesis, we consider the fairness issue in the resource allocation scheme for cellular downlink OFDMA systems. The conventional max-min fair approach simply leads to an equal rate result for each user. Consequently, the different rate demands among users are not well taken care of. On the other hand, the fairness and the overall throughput trade off. The fairness index is adjustable and the equal-rate fairness is one of the special case. In this thesis, the max-min weighted surplus rate fairness is presented. In this formulation, the adjustable fairness and different rate demands for individual user are considered. Since the problem is NP-hard, a resource allocation algorithm for general max-min problem is proposed. In this algorithm, we take care of conflicts in subcarrier assignments and design a penalty criteria to explore the opportunity cost, As result, better throughput-fairness region is achieved. The mathematical analysis for the proposed algorithm is devised. The effectiveness of the proposed algorithm has been verified numerically under various channel models with comparison to the conventional Greedy and Vogel's approaches.
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吳仁銘 |
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吳仁銘 曹哲儒 |
author |
曹哲儒 |
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曹哲儒 Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
author_sort |
曹哲儒 |
title |
Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
title_short |
Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
title_full |
Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
title_fullStr |
Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
title_full_unstemmed |
Adjustable Fairness Resource Allocation with Minimum Opportunity Cost for Multiuser OFDMA Systems |
title_sort |
adjustable fairness resource allocation with minimum opportunity cost for multiuser ofdma systems |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/41112495119809452787 |
work_keys_str_mv |
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