Wireless networks have received considerable attention recently due to the high user demand for wireless services and the emergence of new applications. This th

This dissertation studies the communication technologies in relaying systems with multiple antennas, especially in the multiple-input multiple-output (MIMO) two

We consider a two-way relay channel in which two transmitters want to exchange information through a central relay. The relay observes a superposition of the tr

Physical layer network coding (PNC) was proposed under the two-way relay hannel (TWRC) scenario, where two sources exchange information aided by a relay. PNC al