Coordinated Hybrid Precoding for Interference Exploitation in Heterogeneous Networks
We consider a downlink multiuser massive MIMO system comprising multiple heterogeneous base stations with hybrid precoding architectures. To enhance the energy efficiency of the network, we propose a novel coordinated hybrid precoding technique, where the coordination between the base stations is ai...
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| Veröffentlicht in: | IEEE communications letters 2019-11, Vol.23 (11), p.2109-2113 |
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| container_title | IEEE communications letters |
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| creator | Hegde, Ganapati Masouros, Christos Pesavento, Marius |
| description | We consider a downlink multiuser massive MIMO system comprising multiple heterogeneous base stations with hybrid precoding architectures. To enhance the energy efficiency of the network, we propose a novel coordinated hybrid precoding technique, where the coordination between the base stations is aimed at exploiting interference as opposed to mitigating it as per conventional approaches. We formulate an optimization problem to compute the coordinated hybrid precoders that minimize the total transmit power while fulfilling the required quality of service at each user. Furthermore, we devise a low-complexity suboptimal precoding scheme to compute approximate solutions of the precoding problem. The simulation results reveal that the proposed coordinated hybrid precoding yields superior performance when compared to the conventional hybrid precoding schemes. |
| doi_str_mv | 10.1109/LCOMM.2019.2933840 |
| format | Article |
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| ispartof | IEEE communications letters, 2019-11, Vol.23 (11), p.2109-2113 |
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| source | IEEE Electronic Library (IEL) |
| subjects | 5G networks Antennas Computer architecture Computer simulation constructive interference distributed precoding integer programming Interference Interference exploitation MIMO (control systems) MIMO communication Optimization Precoding Radio frequency Stations |
| title | Coordinated Hybrid Precoding for Interference Exploitation in Heterogeneous Networks |
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