Interference coordination in full-duplex HetNet with large-scale antenna arrays

Abstract

Massive multiple-input multiple-output (MIMO), small cell, and full-duplex are promising techniques for future 5G communication systems, where interference has become the most challenging issue to be addressed. In this paper, we provide an interference coordination framework for a two-tier heterogeneous network (HetNet) that consists of a massive-MIMO enabled macro-cell base station (MBS) and a number of full-duplex small-cell base stations (SBSs). To suppress the interferences and maximize the throughput, the full-duplex mode of each SBS at the wireless backhaul link (i.e., in-band or out-of-band), which has a different impact on the interference pattern, should be carefully selected. To address this problem, we propose two centralized algorithms, a genetic algorithm (GEA) and a greedy algorithm (GRA). To sufficiently reduce the computational overhead of the MBS, a distributed graph coloring algorithm (DGCA) based on price is further proposed. Numerical results demonstrate that the proposed algorithms significantly improve the system throughput.

Keywords

Massive MIMO / Full-duplex / Small cell / Wireless backhaul / Distributed algorithm

References

[1] 3GPP, 2012a. Evolved universal terrestrial radio access (EUTRA); LTE physical layer; general description. Technical Specification No. 36.201 (v11.1.0), 3rd Generation Partnership Project.

[2] 3GPP, 2012b. Evolved universal terrestrial radio access (E-UTRA); further enhancements to LTE time division duplex (TDD) for downlink-uplink (DL-UL) interference management and traffic adaptation. Technical Report No. 36.828 (v11.0.0), 3rd Generation Partnership Project.

[3] Bharadia,D., Katti,S., 2016. Full-duplex radios. In: Vannithamby, R., Talwar, S. (Eds.), Towards 5G: Applications, Requirements and Candidate Technologies. John Wiley & Sons, p.365–394.

[4] Boccardi,F., Heath,R., Lozano,A., , 2014. Five disruptive technology directions for 5G. IEEE Commun. Mag., 52(2):74–80.

[5] Brélaz,D., 1979. New methods to color the vertices of a graph. Commun. ACM, 22(4):251–256.

[6] Choi,J.I., Jain,M., Srinivasan,K. , , 2010. Achieving single channel, full duplex wireless communication. 16th Annual Int. Conf. on Mobile Computing and Networking, p.1–12.

[7] Goyal,S., Liu,P., Hua,S., , 2013. Analyzing a full-duplex cellular system. 47th Annual Conf. on Information Sciences and Systems, p.1–6.

[8] Goyal,S., Liu,P., Panwar,S., , 2014. Improving small cell capacity with common-carrier full duplex radios. IEEE Int. Conf. on Communications, p.4987–4993.

[9] Hosseini,K., Hoydis, J., ten Brink,S. , , 2013. Massive MIMO and small cells: how to densify heterogeneous networks. IEEE Int. Conf. on Communications, p.5442–5447.

[10] Hoydis,J., Kobayashi, M., Debbah,M. , 2011. Green smallcell networks. IEEE Veh. Technol. Mag., 6(1):37–43.

[11] Hoydis,J., Hosseini, K., ten Brink,S. , , 2013. Making smart use of excess antennas: massive MIMO, small cells, and TDD. Bell Labs Techn. J., 18(2):5–21.

[12] Jain,M., Choi,J.I., Kim,T., , 2011. Practical, real-time, full duplex wireless. 17th Annual Int. Conf. on Mobile Computing and Networking, p.301–312.

[13] Kim,S., Cho,I., 2013. Graph-based dynamic channel assignment scheme for femtocell networks. IEEE Commun. Lett., 17(9):1718–1721.

[14] Larsson,E., Edfors, O., Tufvesson,F. , , 2014. Massive MIMO for next generation wireless systems. IEEE Commun. Mag., 52(2):186–195.

[15] Li,B., Zhu,D., Liang,P., 2015. Small cell in-band wireless backhaul in massive MIMO systems: a cooperation of next-generation techniques. IEEE Trans. Wirel. Commun., 14(12):7057–7069.

[16] Liu,G., Yu,F.R., Ji,H., , 2015. In-band full-duplex relaying: a survey, research issues and challenges. IEEE Commun. Surv. Tutor., 17(2):500–524.

[17] Marzetta,T.L., 2010. Noncooperative cellular wireless with unlimited numbers of base station antennas. IEEE Trans. Wirel. Commun., 9(11):3590–3600.

[18] Rusek,F., Persson, D., Lau,B.K. , , 2013. Scaling up MIMO: opportunities and challenges with very large arrays. IEEE Signal Process. Mag., 30(1):40–60.

[19] Sabharwal,A., Schniter, P., Guo,D. , , 2014. Inband full-duplex wireless: challenges and opportunities. IEEE J. Sel. Areas Commun., 32(9):1637–1652.

[20] Tabassum,H., Sakr,A.H., Hossain,E., 2016. Analysis of massive MIMO-enabled downlink wireless backhauling for full-duplex small cells. IEEE Trans. Commun., 64(6):2354–2369.

[21] Thilina,K.M., Tabassum, H., Hossain,E. , , 2015. Medium access control design for full duplex wireless systems: challenges and approaches. IEEE Commun. Mag., 53(5):112–120.

RIGHTS & PERMISSIONS

Zhejiang University and Springer-Verlag Berlin Heidelberg