@conference {962, title = {Beamformer design for full-duplex amplify-and-forward millimeter wave relays}, booktitle = {16th International Symposium on Wireless Communication Systems (ISWCS)}, year = {2019}, month = {08/2019}, address = {Oulu, Finland}, abstract = {
We consider the design of Amplify \& Forward Full-Duplex (FD) relay-assisted communication systems. The FD mode has potential for significant improvements in spectral efficiency, but it suffers from large self-interference (SI) levels.
Beamforming-based SI mitigation is attractive for millimeter wave (mmWave) systems due to the large number of degrees of freedom available with large antenna arrays. We first develop an all-digital beamformer design by imposing a zero-forcing constraint on SI, performing quasi-optimally in terms of spectral efficiency. The design is then modified to fit the hardware-related constraints usually found when operating at mmWave, so that the beamformers can be implemented in the analog domain by using phase shifters, with an acceptable performance loss.
}, keywords = {full-duplex, mmWave, winter}, author = {R. L{\'o}pez-Valcarce and Nuria Gonz{\'a}lez-Prelcic} }