Two Way Amplify Forward Relaying Using Frequency Domain Oversampling on Frequenc

Frequency-domain oversampling (FDO) is studied for two-way amplified-and-forward relaying (TWAR) on the frequency-selective fading channel. In the FDO-based scheme, a zero postfix (ZP) is inserted in the transmitted data block, and a fractionally spaced frequency-domain (FSFD) minimum mean-square-er