Effects of Channel Estimation Error in the Presence of CFO on OFDM BER in Frequency-Selective Rayleigh Fading Channels
學年 96
學期 2
出版(發表)日期 2008-07-01
作品名稱 Effects of Channel Estimation Error in the Presence of CFO on OFDM BER in Frequency-Selective Rayleigh 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 Academy Publisher
著錄名稱、卷期、頁數 Journal of Communications 3(3), pp.10-18
摘要 In this paper, we study the effects of channel estimation error on the bit-error-rate (BER) of orthogonal frequency division multiplexing (OFDM) systems in frequency-selective slowly Rayleigh fading channels. Due to the additive white Gaussian noise (AWGN) and the intercarrier interference (ICI) caused by the residual carrier frequency offset (CFO), the channel estimation based on the training symbols is not perfect. We characterize the performance degradation resulting from imperfect channel state information (CSI) by deriving the BER formulas for BPSK, QPSK, 16-QAM, and 64-QAM modulation schemes. The derived BER formulas contain no numerical integrals and can be evaluated easily and accurately. Simulation results validate the correctness of our theoretical analysis.
關鍵字
語言 en_US
ISSN 1796-2021
期刊性質 國外
收錄於 EI
產學合作
通訊作者 Yih, Chi-hsiao
審稿制度
國別 USA
公開徵稿
出版型式 ,紙本
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