分頻正交多重接取系統之子載波、位元及功率配置演算法效能改善機制研究; A sub-carrier, bit, and power allocation algorithm for multi-user, OFDM-based system

NCUIR > College of Electrical Engineering & Computer Science > Executive Master of Communication Engineering > Electronic Thesis & Dissertation > Item 987654321/8317

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/8317

Title:	分頻正交多重接取系統之子載波、位元及功率配置演算法效能改善機制研究;A sub-carrier, bit, and power allocation algorithm for multi-user, OFDM-based system
Authors:	賴佳弘;Jia-Hong Lai
Contributors:	通訊工程研究所碩士在職專班
Keywords:	子載波配置;subcarrier allocation
Date:	2008-07-10
Issue Date:	2009-09-22 11:23:00 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	針對子載波最適分配，我們提出一個新的動態通道調整機制，引用傳輸功率較佳之Zhang進行子載波初始化配置，並搭配一次進行多組子載波交換或移動的動態調整方式，模擬結果較原動態調整機制更能夠節省功率的輸出。 We quote Zhang’s subcarrier distributes method to establish initial subcarrier distribution. And double check if we exchange or shift more pair subcarriers at the same time, the transmit power decreasing degree can be more and fast. Simulation results show that if we use better subcarrier allocation at the beginning, and change more subcarriers at the same time if the power gain will be more. The needed final total transmit power will be less.
Appears in Collections:	[Executive Master of Communication Engineering] Electronic Thesis & Dissertation

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