Improving Macrocell-Small Cell Coexistence Through Adaptive Interference Draining
| Autor: | Mehdi Bennis, Francesco Pantisano, Matti Latva-aho, Walid Saad, Merouane Debbah |
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| Přispěvatelé: | Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre for Wireless Communications [University of Oulu] (CWC), University of Oulu, University of Miami, Electrical and Computer Engineering Department, Chaire Radio Flexible Alcatel-Lucent/Supélec (Chaire Radio Flexible), Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Alcatel-Lucent |
| Rok vydání: | 2014 |
| Předmět: |
Computer science
MIMO 02 engineering and technology Interference (wave propagation) [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI] [SPI]Engineering Sciences [physics] Base station 0203 mechanical engineering 0202 electrical engineering electronic engineering information engineering [INFO]Computer Science [cs] Macrocell [MATH]Mathematics [math] Electrical and Electronic Engineering Underlay Radio resource management Spectrum sharing business.industry Applied Mathematics 020206 networking & telecommunications 020302 automobile design & engineering Spectral efficiency Computer Science Applications Cellular network Small cell business Computer network Communication channel |
| Zdroj: | IEEE Transactions on Wireless Communications IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2013, 13 (2), pp.942-955. ⟨10.1109/TWC.2013.120613.130617⟩ IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2014, 13 (2), pp.942-955. ⟨10.1109/TWC.2013.120613.130617⟩ |
| ISSN: | 1536-1276 |
| DOI: | 10.1109/twc.2013.120613.130617 |
| Popis: | International audience; The deployment of underlay small base stations (SBSs) is expected to significantly boost the spectrum efficiency and the coverage of next-generation cellular networks. However, the coexistence of SBSs underlaid to an existing macro-cellular network faces important challenges, notably in terms of spectrum sharing and interference management. In this paper, we propose a novel game-theoretic model that enables the SBSs to optimize their transmission rates by making decisions on the resource occupation jointly in the frequency and spatial domains. This procedure, known as interference draining, is performed among cooperative SBSs and allows to drastically reduce the interference experienced by both macro-and small cell users. At the macrocell side, we consider a modified water-filling policy for the power allocation that allows each macrocell user (MUE) to focus the transmissions on the degrees of freedom over which the MUE experiences the best channel and interference conditions. This approach not only represents an effective way to decrease the received interference at the MUEs but also grants the SBSs tier additional transmission opportunities and allows for a more agile interference management. Simulation results show that the proposed approach yields significant gains at both macrocell and small cell tiers, in terms of average achievable rate per user, reaching up to 37%, relative to the non-cooperative case, for a network with 150 MUEs and 200 SBSs. |
| Databáze: | OpenAIRE |
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