Selecting the Optimal Fractional Frequency Reuse Scheme in Long Term Evolution Networks
| Autor: | Georgia Tseliou, Dimitrios Bilios, Andreas Papazois, Christos Bouras, Vasileios Kokkinos |
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| Rok vydání: | 2013 |
| Předmět: |
Computer science
business.industry Orthogonal frequency-division multiple access Distributed computing Interference (wave propagation) Frequency reuse Computer Science Applications Term (time) Frequency allocation Metric (mathematics) Cellular network Key (cryptography) Electrical and Electronic Engineering Telecommunications business |
| Zdroj: | Wireless Personal Communications. 71:2693-2712 |
| ISSN: | 1572-834X 0929-6212 |
| DOI: | 10.1007/s11277-012-0965-z |
| Popis: | Long Term Evolution (LTE) networks offer high capacity and are specified and designed to accommodate small, high performance, power-efficient end-user devices. One limiting factor that influences LTE performance is the interference from neighbouring cells, the so called Inter-Cell Interference (ICI). The investigation of ICI mitigation techniques has become a key focus area in achieving dense spectrum reuse in next generation cellular systems. Fractional Frequency Reuse (FFR) has been proposed as a technique to overcome this problem, since it can efficiently utilize the available frequency spectrum. This manuscript proposes a dynamic mechanism that selects the optimal FFR scheme based on a custom metric, which is called user satisfaction. In detail, the proposed mechanism divides the cell into two regions, the inner and outer region, and selects the optimal size as well as the optimal frequency allocation between these regions with main target to maximize the user satisfaction metric. The proposed mechanism is evaluated through several simulation scenarios that incorporate users' mobility and its selected FFR scheme is compared with other frequency reuse schemes in order to highlight its performance. |
| Databáze: | OpenAIRE |
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