Optimization of fractional frequency reuse in long term evolution networks
| Autor: | Vasileios Kokkinos, Christos Bouras, Georgia Tseliou, Dimitrios Bilios, Andreas Papazois |
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| Rok vydání: | 2012 |
| Předmět: |
Mathematical optimization
business.industry Orthogonal frequency-division multiplexing Computer science Frequency band Orthogonal frequency-division multiple access Bandwidth (signal processing) Throughput Interference (wave propagation) Frequency reuse Frequency allocation Adjacent-channel interference business Throughput (business) Computer network Communication channel |
| Zdroj: | WCNC |
| DOI: | 10.1109/wcnc.2012.6214087 |
| Popis: | In cellular systems, Fractional Frequency Reuse (FFR) partitions each cell into two regions; inner region and outer region and allocates different frequency band to each region. Since the users at the inner region are less exposed to inter-cell interference, the frequency resources in each inner region can be universally used. Based on this frequency band allocation, FFR may reduce channel interference and offer large system capacity. This paper proposes a mechanism that selects the optimal FFR scheme based on the user throughput and user satisfaction. In detail, the mechanism selects the optimal size of the inner and outer region for each cell as well as the optimal frequency allocation between these regions that either maximizes the mean user throughput or the user satisfaction. The mechanism is evaluated through several simulation scenarios. |
| Databáze: | OpenAIRE |
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