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In this paper, the authors propose a new joint transmit/receive equalization technique for Single-Carrier (SC) block transmissions in a severe frequency-selective fading channel. An iterative Frequency-Domain Inter-symbol interference Cancellation (FDIC) is introduced to the joint Transmit/Receive (Tx/Rx) Frequency-Domain Equalization (FDE) based on the Minimum Mean Square Error (MMSE) criterion which was previously proposed by authors. At a receiver, a 1-tap FDE and FDIC are jointly used and they are updated in an iterative manner to achieve larger frequency diversity gain. Since the transmit FDE weight cannot be updated, they introduce a virtual receiver having a receive FDE & FDIC into the transmitter.
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