Optimal precoding for full-duplex base stations under strongly correlated self-interference channels

Abstract

We study the optimal precoding for a full-duplex (FD) system, where one FD multi-antenna base station (BS) respectively transmits to and receives from two half-duplex single-antenna mobile users (MUs) on the same time slot and frequency band. At the FD BS, the received signal from the desired MU is severely affected by the extremely strong self-interference (SI) from its transmit antennas to the receive antennas. In the presence of residual SI after imperfect SI cancellation, the downlink transmission rate maximization problem subject to a targeted uplink rate is formulated as a non-convex optimization problem to characterize the achievable rate region for the considered system. Considering the case in which the SI channel is strongly correlated, the above problem is transformed into a convex problem by exploiting the rank-one property of the SI channel, which can be solved efficiently. Finally, numerical results validate the effectiveness of the proposed scheme.

Keywords

Linear precoding / Full-duplex / Achievable rate region / Strongly correlated self-interference channel

References

[1] Bharadia,D., McMilin, E., Katti,S. , 2013. Full duplex radios. ACM SIGCOMM Comput. Commun. Rev., 43(4):375–386.http://dx.doi.org/10.1145/2486001.2486033

[2] Boyd,S., Vandenberghe, L., 2004. Convex Optimization. Cambridge University Press, UK.

[3] Cirik,A.C., 2015. Fairness considerations for full duplex multi-user MIMO systems. IEEE Wirel. Commun. Lett., 4(4):361–364. http://dx.doi.org/10.1109/LWC.2015.2419672

[4] Cirik,A.C., Rong,Y., Hua,Y., 2014. Achievable rates of full-duplex MIMO radios in fast fading channels with imperfect channel estimation. IEEE Trans. Signal Process., 62(15):3874–3886. http://dx.doi.org/10.1109/TSP.2014.2330806

[5] Haneda,K., Khatun, A., Dashti,M. , , 2013a. Measurement-based analysis of spatial degrees of freedom in multipath propagation channels. IEEE Trans. Anten. Propag., 61(2):890–900. http://dx.doi.org/10.1109/TAP.2012.2223431

[6] Haneda,K., Khatun, A., Gustafson,C. , , 2013b. Spatial degrees-of-freedom of 60 GHz multiple-antenna channels. Proc. IEEE 77th Vehicular Technology Conf., p.1–5. http://dx.doi.org/10.1109/VTCSpring.2013.6692762

[7] Huberman,S., Le-Ngoc, T.,2015. Full-duplex MIMO precoding for sum-rate maximization with sequential convex programming. IEEE Trans. Veh. Technol., 64(11):5103–5112. http://dx.doi.org/10.1109/TVT.2014.2380775

[8] Nguyen,D., Tran,L.N., Pirinen,P., , 2013. Precoding for full duplex multiuser MIMO systems: spectral and energy efficiency maximization. IEEE Trans. Signal Process., 61(16):4038–4050. http://dx.doi.org/10.1109/TSP.2013.2267738

[9] Nguyen,D., Tran,L.N., Pirinen,P., , 2014.On the spectral efficiency of full-duplex small cell wireless systems. IEEE Trans. Wirel. Commun., 13(9):4896–4910. http://dx.doi.org/10.1109/TWC.2014.2334610

[10] Pu,X., Shao,S., Deng,K., , 2015. Effects of array orientations on degrees of freedom for 3D LoS channels in short-range communications. IEEE Wirel. Commun. Lett., 4(1):106–109. http://dx.doi.org/10.1109/LWC.2014.2381221

[11] Sabharwal,A., Schniter, P., Guo,D. , , 2014. Inband full-duplex wireless: challenges and opportunities. IEEE J. Sel. Areas Commun., 32(9):1637–1652. http://dx.doi.org/10.1109/JSAC.2014.2330193

[12] Yousif,E.H.G., Ratnarajah, T., Sellathurai,M. , 2015. Modeling and performance analysis of multitaper detection using phase-type distributions over MIMO fading channels. IEEE Trans. Signal Process., 63(22):5882–5896. http://dx.doi.org/10.1109/TSP.2015.2455520

[13] Zhang,R., Liang,Y.C., Chai,C.C., , 2009. Optimal beamforming for two-way multi-antenna relay channel with analogue network coding. IEEE J. Sel. Areas Commun., 27(5):699–712. http://dx.doi.org/10.1109/JSAC.2009.090611

RIGHTS & PERMISSIONS

2017 Zhejiang University and Springer-Verlag Berlin Heidelberg