Interference Coordination for Heterogeneous Users in Asynchronous Fog Radio Access Networks
| Autor: | Jaedon Park, Bang Chul Jung, Sang-Woon Jeon, Hyungjoo Lee |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Beamforming
business.industry Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS MIMO 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Interference (wave propagation) Dimension (vector space) Control and Systems Engineering Asynchronous communication Telecommunications link 0202 electrical engineering electronic engineering information engineering Point (geometry) Electrical and Electronic Engineering Antenna (radio) business Computer Science::Information Theory Computer network |
| Zdroj: | IEEE Wireless Communications Letters. 8:1064-1068 |
| ISSN: | 2162-2345 2162-2337 |
| DOI: | 10.1109/lwc.2019.2906179 |
| Popis: | In this letter, we propose a novel multi-input multi-output (MIMO) interference coordination (IC) technique for uplink fog radio access networks (F-RANs), consisting of two multi-antenna remote radio heads (RRHs) connected to a single fog access point (F-AP) and user equipments (UEs) equipped with different numbers of antennas. It is assumed that UEs are scheduled with an asynchronous manner for each RRH. With the proposed MIMO IC technique, the interference dimension at each RRH is dynamically adjusted via transmit beamforming at the selected UEs based on both currently scheduled UEs and their antenna configurations. To the best of our knowledge, the MIMO IC exploiting heterogeneous multi-antennas at UEs is first proposed in this letter for the F-RANs. Numerical results show that the proposed technique outperforms the conventional schemes in terms of sum rates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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