教師資料查詢 | 類別: 期刊論文 | 教師: 易志孝 YIH CHI HSIAO (瀏覽個人網頁)

標題:BER Analysis of OFDM Systems Impaired by DC Offset and Carrier Frequency Offset in Multipath Fading Channels
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學期
出版(發表)日期2007/11/01
作品名稱BER Analysis of OFDM Systems Impaired by DC Offset and Carrier Frequency Offset in Multipath Fading Channels
作品名稱(其他語言)
著者Yih, Chi-hsiao
單位淡江大學電機工程學系
出版者IEEE Communications Society
著錄名稱、卷期、頁數IEEE Communications Letters 11(11), pp.842-844
摘要We perform bit-error-rate (BER) analysis of orthogonal frequency division multiplexing (OFDM) systems impaired by both direct current (DC) offset and carrier frequency offset (CFO) in multipath Rayleigh fading channels. Since the performance of OFDM systems is sensitive to the CFO, it is necessary to estimate and correct the CFO at the receiver. The existence of DC offset degrades the performance of CFO estimator and results in large residual CFO after compensation. Moreover, the process of CFO compensation spreads the DC offset energy and causes DC offset interference to all subcarriers. By deriving the BER formula for OFDM systems employing binary phase-shift keying modulation, the dependency of BER on the DC offset, CFO, and estimated CFO is accurately quantified. Simulation results validate the correctness of our theoretical analysis.
關鍵字Bit error rate;Fading;Performance analysis;Degradation;Interference;Phase shift keying;Phase modulation;OFDM modulation;Phase estimation;Analytical models
語言英文(美國)
ISSN1089-7798
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
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