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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/18289

Title: 正交分頻多工系統多用戶適應性資源分配演算法分析比較
Comparison and Analysis of the Adaptive Resource Allocation Algorithms for the Multiuser OFDM systems
Authors: Wei-Ming Chen
Contributors: NTOU:Department of Communications Navigation and Control Engineering
Keywords: 正交分頻多工;適應性資源分配
multiuser OFDM;adaptive resource allocation
Date: 2008
Issue Date: 2011-07-04
Abstract: 本論文中,主要利用OFDM多載波的特性,於多使用者環境下,做適應性資源分配演算方法探討,包含了頻寬、子通道、位元和功率分配。假設所有的子通道增益在已知的情況 (即假設有完美的通道估測,忽略在無線行動傳輸中通道衰減的速度,傳送者與接收者間環境的改變等),並在某一錯誤率條件下,依所需要傳送之資料量,將整體傳送功率最小化問題公式化,並透過合理的資源分配方式,使系統效能得以改善。
In this paper, we analyze the adaptive subcarrier, bit and power allocation algorithms for the multiuser OFDM systems. Assume that the instantaneous channel gains for all users are known, we formulate the problem of minimizing total power consumption with the constraints of BER and data rate requirements. System performance of different adaptive algorithms are compared in the resource-limited OFDM system.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0M95670009
Appears in Collections:[通訊與導航工程學系] 博碩士論文

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