Abstract: | |
To prevent the Femto-to-Macro and Femto-to-Femto inter-cell interference, it is essential for the Femto Base Stations to perform interference management in its downlink. This paper exploits the distinct characteristics of OFDMA Femtocells and reveals the simple but effective mechanics for Femto BSs to mitigate the inter-cell interference when Macro BSs are performing fractional frequency reuse. The idea consists of frequency pattern counter-reusing and band-wide frequency hopping. Base on this idea, we then proposed a heuristic Frequency Reuse and Hopping scheme and the later simulation results proved that it can satisfactorily improve the system performance. By following the routines of low-cost low-complexity in design, the proposed scheme is grounded on realistic assumptions and easy to implement.
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License of this version: | Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. |
Publication type: | Article |
Publishing status: | publishedVersion |
Publication date: | 2010 |
Keywords english: | Femtocell downlink, Frequency hopping, Frequency reuse, OFDMA, Downlink frequency, Femtocell, Fractional Frequency Reuse, Frequency patterns, Frequency re-use, Intercell interference, Interference management, Low-complexity, OFDMA, Simulation result, Frequency division multiple access, Mobile telecommunication systems, Radio interference, Frequency hopping |
DDC: | 621,3 | Elektrotechnik, Elektronik |
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