Inter-cell Interference Coordination Method Based on Active Antenna System in Heterogeneous Networks 


Vol. 39,  No. 9, pp. 548-556, Sep.  2014


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  Abstract

To cope with recently increasing demand for data traffics, heterogeneous networks have been actively studied, where small cells are deployed within a macro cell coverage with the same frequency band. To mitigate the interference from the macro cell to small cells, an enhanced Inter-cell Interference Coordination (eICIC) technique has been proposed, where ABS (Almost Blank Subframe) is used in time domain. However, there is a waste of resource since no data is transmitted in a macro-cell in ABS. In this paper, we propose a new interference management method by using a 3D sector beam based on Active Antenna System (AAS), where Genetic Algorithm (GA) is applied to reduce the antenna gain toward a small-cell. With the proposed scheme, the macro-cell and small cells can transmit data at the same time with the AAS antenna pattern generating reduced interference to small cells. The performance of the proposed scheme is evaluated by using an LTE-Advanced system level simulator.

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  Cite this article

[IEEE Style]

B. Kim, H. Park, D. K. Kim, "Inter-cell Interference Coordination Method Based on Active Antenna System in Heterogeneous Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 9, pp. 548-556, 2014. DOI: .

[ACM Style]

Byoung-June Kim, Haesung Park, and Duk Kyung Kim. 2014. Inter-cell Interference Coordination Method Based on Active Antenna System in Heterogeneous Networks. The Journal of Korean Institute of Communications and Information Sciences, 39, 9, (2014), 548-556. DOI: .

[KICS Style]

Byoung-June Kim, Haesung Park, Duk Kyung Kim, "Inter-cell Interference Coordination Method Based on Active Antenna System in Heterogeneous Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 9, pp. 548-556, 9. 2014.