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Self-Interference Suppression in Full-Duplex MIMO Relays

Panagiota Lioliou (Institutionen för signaler och system, Signalbehandling) ; Mats Viberg (Institutionen för signaler och system, Signalbehandling) ; Mikael Coldrey ; Fredrik Athley
44th Asilomar Conference on Signals, Systems and Computers (1058-6393). p. 658-662. (2010)
[Konferensbidrag, refereegranskat]

Full-duplex relays can provide cost-effective cover-age extension and throughput enhancement. However, the main limiting factor is the resulting self-interference signal which deteriorates the relay performance. In this paper, we propose a novel technique for self-interference suppression in full-duplex Multiple-Input Multiple-Output (MIMO) relays. The relay employs transmit and receive weight filters for suppressing the self-interference signal. Unlike existing techniques that are based on zero forcing of self-interference, we aim at maximizing the ratio between the power of the useful signal to the self-interference power at the relay reception and transmission. Our simulation results show that the proposed algorithm outperforms the existing schemes since it can suppress interference substantially with less impact on the useful signal.

Denna post skapades 2010-09-03. Senast ändrad 2014-09-02.
CPL Pubid: 125618


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Institutioner (Chalmers)

Institutionen för signaler och system, Signalbehandling (1900-2017)


Elektroteknik och elektronik

Chalmers infrastruktur