高速移動環境下OFDM系統載波間干擾減抑改進之FPGA設計與實現 ; Design and FPGA Implementation of An Improved Inter-Carrier Interference Mitigation Scheme for OFDM Systems in High-Mobility Environment

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Title:	高速移動環境下OFDM系統載波間干擾減抑改進之FPGA設計與實現;Design and FPGA Implementation of An Improved Inter-Carrier Interference Mitigation Scheme for OFDM Systems in High-Mobility Environment
Authors:	黃文昱;Wen-Yu Huang
Contributors:	通訊工程研究所
Keywords:	正交分頻多工系統;高速移動;載波間干擾;OFDM;High-mobility;ICI
Date:	2010-07-27
Issue Date:	2010-12-09 13:46:58 (UTC+8)
Publisher:	國立中央大學
Abstract:	在高速移動環境下，正交分頻多工系統的效能受限於載波間干擾，且隨著移動速度上升，載波間干擾的現象愈嚴重。為了克服高速移動環境下引起的載波間干擾，本論文提出基於最大近似法則的演算法改進載波間干擾減抑。本論文以DVB-T系統為例，最後在FPGA上實現本論文提出的演算法。In high-mobility environment, the performance of wireless OFDM communication systems is limited by inter-carrier-interference (ICI) phenomenon and ICI effect is more serious with higher velocity of receiver. To overcome ICI which is caused by the high mobility, in this thesis we present an improved ICI mitigation scheme based on maximum-likelihood criterion. We take DVB-T system for example and finally implement the algorithm we propose with FPGA.
Appears in Collections:	[Graduate Institute of Communication Engineering] Electronic Thesis & Dissertation

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