Browse > Article
http://dx.doi.org/10.7840/kics.2014.39A.5.280

Load Balancing Scheme for Heterogeneous Cellular Networks Using e-ICIC  

Hong, Myung-Hoon (Kangwon National University, School of Information Technology)
Park, Seung-Young (Kangwon National University, School of Information Technology)
Abstract
Recently, heterogeneous networks consisting of small-cells on top of traditional macro-cellular network has attracted much attention, because traditional macro-cellular network is not suitable to support more demanding mobile data traffic due to its limitation of spatial reuse. However, due to the transmit power difference between macro- and small-cells, most users are associated with macro-cells rather than small-cells. To solve this problem, enhanced inter-cell interference coordination (eICIC) has been introduced. Particularly, in eICIC, the small-cell coverage is forcibly expanded to associate more users with small-cells. Then, to avoid cross-tier interference from macro-cells, these users are allowed to receive the data during almost blank subframe (ABS) in which macro-cells almost remain silent. However, this approach is not sufficient to balance the load between macro- and small-cells because it only expands the small-cell coverage. In this paper, we propose a load balance scheme improving proportional fairness for heterogeneous networks employing eICIC. In particular, the proposed scheme combines the greedy-based user association and the ABS rate determination in a recursive manner to perform the load balance.
Keywords
eICIC; ABS; cell range expansion; load balance; HetNet;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 T. F. Gonzalez, Handbook of Approximation Algorithms and Metaheuristics, Chapman & Hall, 2007.
2 P. Svedman, S. K. Wilson, L. J. Cimini, Jr., and B. Ottersten, "Opportunistic beamforming and scheduling for OFDMA systems," IEEE Trans. Commun., vol. 55, no. 5, pp. 941-952, May 2007.   DOI   ScienceOn
3 S. N. Sivanandam and S. N. Deepa, Introduction to Genetic Algorithm, Springer, 2007.
4 S. E. Kim, K. S. Kim, and E. K. Hon, "Analysis on interference control in heterogeneous networks," J. KICS, vol. 38, no. 3, pp. 268-276, Mar. 2013   과학기술학회마을   DOI   ScienceOn
5 Y. Wang, B. Soret, and K. I. Pedersen, "Sensitivity study of optimal eICIC configurations in different heterogeneous network scenarios," in Proc. IEEE Commun., Ottawa, ON, pp. 6792-6796, Jun. 2012.
6 A. Tall, Z. Altman, and E. Altman, "Self organizing strategies for enhanced ICIC (eICIC)," submitted to WiOpt 2014, Jan. 2014, from http://arxiv.org/pdf/1401.2369v1.pdf
7 Y. Choi and S. Bahk, "Cell-throughput analysis of the proportional fair scheduler in the single-cell environment" in Proc. IEEE VTC, vol. 56, no. 2, pp. 766-778, Mar. 2007.
8 P. Viswanath, D. Tse, and R. Laroia, "Opportunistic beamforming using dumb antennas," IEEE Trans. Inf. Theory, vol. 48, no. 6, pp. 1277-1294, Jun. 2002.   DOI   ScienceOn
9 3GPP TR 36.814 v9.0.0, "Further advancements for E-UTRA physical layer aspects (Release 9)," Technical Report 3GPP, Mar. 2010.
10 Y. Wang and K. I. Pedersen, "Performance analysis of enhanced inter-cell interference coordination in LTE-advanced heterogeneous network," in Proc. IEEE VTC, Yokohama, Japan, pp. 1-5, May 2012.
11 H. Holma and A. Toskala, LTE for UMTS-OFDMA and SC-FDMA based Radio Access, Wiley, 2009.
12 L. Jiang and M. Lei, "Resource allocation for eicic scheme in heterogeneous networks," in Proc. IEEE Personal, Indoor and Mobile Radio Commun., Sydney, Australia, pp. 448-453, Sept. 2012.
13 H. J. Kim, Y. H. Jo, J. C. Lim, and D. H. Hong, "Interference mitigation by joint employment of power control and almost blank subframes in heterogeneous networks," J. KICS, vol. 39, no 1, pp. 62-64, Jan. 2014.   과학기술학회마을   DOI   ScienceOn
14 S. Lembo, P. Lunden, O. Tirkkonen, and K. Valkealahti, "Optimal muting ratio for enhanced inter-cell interference coordination (eICIC) in HetNets," in Proc. IEEE ICC, Budapest, Hungary, pp. 1145-1149, Jun. 2013.
15 J. Pang, J. Wang, D. Wang, G. Shen, Q. Jiang, and J. Liu, "Optimized time-domain resource partitioning for enhanced inter-cell interference coordination in heterogeneous networks," in Proc. IEEE Wirel. Commun. Net., Shanghai, China, pp. 1613-1617, Apr. 2012.
16 S. Vasudevan, R. N. Pupala, and K. Sivanesan, "Dynamic eICIC-a proactive strategy for improving spectral efficiencies of heterogeneous LTE cellular networks by leveraging user mobility and traffic dynamics," IEEE Trans. Wirel. Commun., vol. 12, no. 10, pp. 4956-4969, Oct. 2013.   DOI   ScienceOn
17 Cisco, Cisco visual networking index: Global mobile data traffic forecast update, 2012-2017, Cisco white paper, Feb. 2013.
18 A. Ghosh, R. Ratasuk, B. Mondal, N. Mangalvedhe, and T. Thomas, "LTE-advanced: Next-generation wireless broadband technology," IEEE Wirel. Commun., vol. 17, no. 3, pp. 10-22, Jun. 2010.
19 B. Soret, H. Wang, K. I. Pedersen, and C. Rosa, "Multicell cooperation for LTE-Advanced heterogeneous network scenarios," IEEE Wirel. Commun., vol. 20, no. 1, pp. 27-34, Feb. 2013.   DOI   ScienceOn
20 A. Damnjanovic, J. Montojo, Y. Wei, T. Ji, T. Luo, M. Vajapeyam, T. Yoo, O. Song, and D. Malladi, "A survey on heterogeneous networks," IEEE Trans. Wirel. Commun., vol. 18, no. 3, pp. 10-21, Jun. 2011.
21 S. Y. Kim, H. W. Lee, and S. W. Ryu, "Analytical evaluation of almost blank subframes for heterogeneous networks," J. KICS, Vol. 38, no. 4, pp. 240-246, Apr. 2013.   과학기술학회마을   DOI   ScienceOn