IBI Cancellation and Circular Property Loss Restoration for Broadband DS-CDMA Using 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. In this paper, IBI cancellation and circular property loss restoration is proposed and the performance improvement is evaluated by computer simulation. It is shown that iterative IBI cancellation & circular property loss restoration can improve the BER performance in a frequency-selective Rayleigh fading channel. It is also shown that circular property loss restoration is more powerful than the IBI cancellation. KeywordsDS-CDMA, MMSE-FDE, IBI cancellation, Circular property loss restoration
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