@conference {Mobiligth2011_-_TWRC-RFAF, title = {Capacity Region of the Two-Way Multi-Antenna Relay Channel with Analog Tx-Rx Beamforming}, booktitle = {3rd International ICST Conference on Mobile Lightweight Wireless Systems (Mobilight 2011)}, year = {2011}, month = {May}, address = {Bilbao, Spain}, author = {Lameiro, Christian and Naz{\'a}bal, Alfredo and Gholam, Fouad and V{\'\i}a, Javier and Santamar{\'\i}a, Ignacio} }