Effect of Gaussian Channel Estimation Error on IBI Cancellation and Circular Property Loss Restoration for Broadband DS-CDMA Combining FDE Without CP Insertion
نویسندگان
چکیده
In broadband DS-CDMA uplink transmission using frequency-domain equalization (FDE) without cyclic prefix (CP) insertion, the transmission performance degrades due to inter block interference (IBI) and circular property loss. The schemes were proposed to solve the problems of IBI and circular property loss in our previous study with the assumption of perfect channel estimation. In this paper, the Gaussian error channel model is used and the effect of estimating accuracy on the bit error rate (BER) is discussed. The requirement for practical channel estimation is also given based on the result. KeywordsDS-CDMA, MMSE-FDE, IBI cancellation, Circular property loss restoration, Gaussian error
منابع مشابه
Impact of Channel Estimation Error on IBI Cancellation and Circular Property Restoration for Broadband DS-CDMA Combining FDE without CP Insertion
In broadband DS-CDMA using frequency-domain equalization (FDE) without cyclic prefix (CP) insertion, the transmission performance degrades due to inter block interference (IBI) and circular property loss. In our previous study, we introduced the perfect IBI cancellation and circular property restoration to mitigate the problems arising from IBI and circular property loss. The perfect channel es...
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