Distributed space-time block coding scheme in in-band full duplex relaying networks

This paper proposes a cooperative scheme for in-band full duplex (IFD) in a one-way two-hop relaying system. The proposed scheme realizes collocated space-time block coding by applying both of the superposition coding at the source and the IFD mode at the relay. The achievable rate of the proposed scheme is derived for fixed relay channel gains and compared to those of the upper-bound IFD as well as existing IFD relaying schemes. Our achievable-rate results elucidate that our scheme is close to the upper-bound IFD than any other scheme.