Adaptive Self-Interference Suppression for Full-Duplex Relays with Multiple Receive Antennas

In full-duplex relays, simultaneous reception and transmission in the same frequency results in self-interference which distorts the retransmitted signal and makes the relay prone to oscillation. The authors present an adaptive feedback canceller for Multiple-Input Single-Output (MISO) relays, efficiently combining spatial and temporal processing. The receive array is adaptively steered towards the Minimum Variance Distortionless Response (MVDR), whereas the temporal filter update is based on a novel low-complexity spectrum shaping scheme which avoids introducing additional delay in the relay station.

Provided by: University of Vienna Topic: Mobility Date Added: Feb 2012 Format: PDF

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