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Title:
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Optimization of soft frequency reuse for irregular LTE macrocellular networks
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Author:
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González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Lee, Dong Seop
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils |
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Abstract:
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Interference management has been recognized by
the industry as a key enabler for 4G systems. Emerging technologies
include multicarrier systems such as LTE and WiMAX
for which effective management of intercell interference is of
utmost importance in order to improve the Quality of Service
(QoS) at cell edges. Static Intercell Interference Coordination
(ICIC) techniques such as Soft Frequency Reuse (SFR) are
aimed at alleviating this problem; however the usage of baseline
SFR designs (schemes without optimization) only offers tradeoffs
between cell edge performance and spectral efficiency and performance
is indeed far from optimal as results herein confirm. Thus,
this paper presents a novel multiobjective algorithm in order
to address this problem and achieve effective optimization of
SFR implementations. Results show that the proposed algorithm
succeeds in finding good-quality SFR configurations enhancing
simultaneously network capacity and cell edge performance while
reducing energy consumption with respect to baseline designs and
previous proposals. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
-Long-Term Evolution (Telecommunications)
-Energy – Consumption
-Intercell interference coordination
-ICIC
-Soft frequency reuse
-SFR
-Long term evolution
-LTE
-Energy efficiency
-Multiobjective optimization
-SEMO
-NSGA-II
-SPEA-2
-Long-term evolution (Telecomunicacions)
-Energia -- Consum |
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Rights:
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Document type:
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Article - Published version
Article |
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