bi-directional multi-antenna relay communications with wireless network coding

FREE-DOWNLOADC Yuen, WH Chin, YL Guan… – … Conference, 2008. VTC …,
Abstract: In this paper, we consider a two-way or bi- directional communications system with
a relay equipped with multiple antennas. We show that when the downlink channel state information
is not known at the relay, the benefit of having additional antennas at the relay can only 

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