Abstract
The Ultra-dense Heterogeneous Network (HetNet), which consists of macro-cells and pico-cells, has been recognized as a key technique to improve network performance. However, the increasing number of pico-cells also causes severe interference including inter-cell interference and intra-cell interference. Therefore, interference management has become an important issue in ultra-dense HetNets, and the traditional enhanced inter-cell interference coordination (eICIC) scheme is no longer fit for the high density of small cells. In this paper, a hybrid interference management method based on dynamic eICIC and coordinated multi-point transmission (CoMP) is proposed. Firstly, a virtual cell is established based on the characteristics of ultra dense HetNets. Then, a novel joint dynamic eICIC scheme combined with multi-user beamforming is deployed to eliminate the inter-cell interference, and improve the throughput of virtual cell significantly without sharp decrease of throughput of macro-cell. Furthermore, a virtual cell based joint transmission scheme is deployed with a power control algorithm, which can obviously increase the spectrum efficiency of virtual cell edge. Simulation results verify that the proposed scheme can achieve better spectrum efficiency both at macro-cell and virtual cell edges, and the network throughput is also improved.
Similar content being viewed by others
References
Deb S, Monogioudis P, Miernik J, et al. Algorithms for enhanced inter-cell interference coordination (eICIC) in LTE HetNets. ACM Trans Netw, 2014, 22: 137–150
Vasudevan S, Pupala R N, Sivanesan K. Dynamic eICICA proactive strategy for improving spectral efficiencies of heterogeneous LTE cellular networks by leveraging user mobility and traffic dynamics. IEEE Trans Wirel Commun, 2013, 12: 4956–4969
Liu A, Lau V K N, Ruan L, et al. Hierarchical radio resource optimization for heterogeneous networks with enhanced inter-cell interference coordination (eICIC). IEEE Trans Signal Process, 2014, 62: 1684–1693
Zhang Y P, Feng S, Zhang P. Adaptive cell association and interference management in LTE-A small-cell networks. In: Proceedings of Vehicular Technology Conference (VTC Fall), Las Vegas, 2013. 1–6
Zhang Y P, Feng S L, Zhang P, et al. Inter-cell interference management in LTE-A small-cell networks. In: Proceedings of Vehicular Technology Conference (VTC Fall), Dresden, 2013. 1–6
Peng M, Li Y, Zhao Z, et al. System architecture and key technologies for 5G heterogeneous cloud radio access networks. IEEE Netw, 2015, 29: 6–14
Li M, Collings I B, Hanly S V, et al. Multicell coordinated scheduling with multiuser zero-forcing beamforming. IEEE Trans Wirel Commun, 2015, 15: 827–842
Li Y N R, Li J, Li W, et al. CoMP and interference coordination in heterogeneous network for LTE-advanced. In: Proceedings of Globecom Workshops, Shenzhen, 2012. 1107–1111
Visotsky E, Mondal B, Thomas T, et al. Joint scheduling for CoMP and eICIC in heterogeneous network deployments. In: Proceedings of Vehicular Technology Conference (VTC Spring), Arlington Heights, 2013. 1–5
Du H T, Zhou W A, Lu X Q, et al. An optimized resource allocation and CoMP based interference coordination scheme for LTE-A Het-Net. In: Proceedings of 9th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA), 2014, Guangdong. 207–211
Kim J, Lee H W, Chong S. Virtual cell beamforming in cooperative networks. IEEE J Sel Areas Commun, 2014, 32: 1126–1138
Ye Q Y, Rong B Y, Chen Y D, et al. User association for load balancing in heterogeneous cellular networks. IEEE Trans Wirel Commun, 2013, 12: 2706–2716
Miyashita M, Mikami M, Fujii T. Investigation on inter-cell interference cancellation scheme for small-cell user equipments in heterogeneous networks employing cell range expansion. In: Proceedings of Vehicular Technology Conference (VTC Spring), Tokyo, 2015. 1–5
3GPP TS 36.423 V13.1.0, X2 application protocol (Release 13), 2015
Mogensen P, Wei N, Kovacs I, et al. LTE capacity compared to the Shannon bound. In: Proceedings of Vehicular Technology Conference, Dublin, 2007. 1234–1238
Rim M. Multi-user downlink beamforming with multiple transmit and receive antennas. Electron Lett, 2002, 38: 1725–1726
Evolved Universal Terrestrial Radio Access (E-UTRA), Further advancements for E-UTRA physical layer aspects (Release 9), 3rd Generation Partnership Project. Sophia-Antipolis Cedex, France, 2010: 3GPP TS 36.814, v9.0.0
Lembo S, Lunden P, Tirkkonen O, et al. Optimal muting ratio for Enhanced Inter-Cell Interference Coordination (eICIC) in HetNets. In: Proceedings of Communications Workshops (ICC), Aalto, 2013. 1145–1149
Fu S, Wu B, Wen H, et al. Transmission scheduling and game theoretical power allocation for interference coordination in CoMP. IEEE Trans Wirel Commun, 2014, 13: 112–123
Hunukumbure M, Vadgama S. Improving cell edge energy efficiency through CoMP beam-forming. In: Proceedings of Vehicular Technology Conference (VTC Spring), Hayes, 2013. 1–5
Qiang L, Yang Y, Shu F, et al. Coordinated beamforming in downlink CoMP transmission system. In: Proceedings of 5th International ICST Conference on Communications and Networking in China (CHINACOM), Beijing, 2010. 1–5
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Huang, C., Chen, Q. & Tang, L. Hybrid inter-cell interference management for ultra-dense heterogeneous network in 5G. Sci. China Inf. Sci. 59, 082305 (2016). https://doi.org/10.1007/s11432-016-5556-2
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11432-016-5556-2