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Open AccessCommunication

Distributed Beamforming and Power Allocation for Heterogeneous Networks with MISO Interference Channel

Department of Information and Communication Engineering, Dongguk University, Seoul 04620, Korea
Academic Editor: Luís Castedo Ribas
Sensors 2021, 21(8), 2606; https://doi.org/10.3390/s21082606
Received: 4 March 2021 / Revised: 23 March 2021 / Accepted: 6 April 2021 / Published: 8 April 2021
(This article belongs to the Special Issue Multi-Antenna Techniques for 5G and beyond 5G Communications)
To address the limitations of centralized resource allocation, i.e., high computational complexity and signaling overhead, a distributed beamforming and power allocation strategy is proposed for heterogeneous networks with multiple-input-single-output (MISO) interference channels. In the proposed scheme, each secondary user transceiver pair (SU TP) determines the beamforming vector and transmits power to maximize its own spectral efficiency (SE) while keeping the interference to the primary user below a predetermined threshold, and such resource management for each SU TP is updated iteratively without any information sharing until the strategies for all SU TPs converge. The simulation confirms that the proposed scheme can achieve a performance comparable to that of a centralized approach with a much lower computation time, e.g., less than 5% degradation in SE while improving computation time by more than 10 times. View Full-Text
Keywords: heterogeneous networks; MISO interference channel; beamforming; power allocation; distributed algorithm heterogeneous networks; MISO interference channel; beamforming; power allocation; distributed algorithm
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MDPI and ACS Style

Lee, K. Distributed Beamforming and Power Allocation for Heterogeneous Networks with MISO Interference Channel. Sensors 2021, 21, 2606. https://doi.org/10.3390/s21082606

AMA Style

Lee K. Distributed Beamforming and Power Allocation for Heterogeneous Networks with MISO Interference Channel. Sensors. 2021; 21(8):2606. https://doi.org/10.3390/s21082606

Chicago/Turabian Style

Lee, Kisong. 2021. "Distributed Beamforming and Power Allocation for Heterogeneous Networks with MISO Interference Channel" Sensors 21, no. 8: 2606. https://doi.org/10.3390/s21082606

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