T. Jung, I. Song, S. Lee, S. Jung, S. Yoon, J. Kang

Expansion of Cell Range with Geometric Information of Pico Cell for Maximum Sum Rate in Heterogeneous Networks

Číslo: 2/2018
Periodikum: Radioengineering Journal
ISBN: 1210-2512
DOI: 10.13164/re.2018.0610

Klíčová slova: Cell range expansion (CRE), heterogeneous network, interference coordination, multi-input multi-output multi-user (MIMO-MU) system, Rozšíření rozsahu buněk (CRE), heterogenní síť, koordinaci interferencí, systém více vícenásobných vstupů s více vstupy (MIMO-MU)

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Anotace: In this paper, taking the positions of pico-cell base stations (PBSs) into consideration, a scheme of cell range expansion (CRE) for maximum sum rate is addressed in heterogeneous multi-input multi-output multi-user wireless networks. The optimal CRE bias obtained numerically by the proposed CRE scheme with inter-cell interference coordination (ICIC) allows us to maximize the sum rate while successfully maintaining the load balance between the macrocell base station and PBSs. Numerical results confirm that the proposed CRE scheme with ICIC can provide higher sum rate than conventional schemes and balanced load.