Cooperative Multicell Downlink Joint Coordinated Switched Beamforming and User Pairing

Cellular networks encounter major challenges in terms of interference management and power consumption. To face these challenges, we present a new switched beamforming (SBF) scheme based on the combination of non-orthogonal multiple access (NOMA) and space division multiple access (SDMA) techniques....

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Bibliographic Details
Published in2022 4th Global Power, Energy and Communication Conference (GPECOM) pp. 611 - 616
Main Author Fakih, Youssef
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.06.2022
Subjects
Array signal processing
Cellular networks
coordinated beamforming
Multicell cooperation
NOMA
Power demand
Quality of service
SDMA
Simulation
switched beamforming (SBF)
Switches
total transmit power minimization
user pairing
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DOI10.1109/GPECOM55404.2022.9815672

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Summary:Cellular networks encounter major challenges in terms of interference management and power consumption. To face these challenges, we present a new switched beamforming (SBF) scheme based on the combination of non-orthogonal multiple access (NOMA) and space division multiple access (SDMA) techniques. Then, we formulate a joint coordinated SBF and user pairing scheme in order to minimize the transmit power subject to the quality of service (QoS) constraints and pairing constraints in a fully cooperative multicell network. To solve the problem, we first provide an efficient method to compute the optimal beamformers for a user group. Then, we propose an algorithm to find the optimal pairing strategy and the optimal beamforming scheme for each group. Simulation results highlight the effectiveness of the proposed scheme.
DOI:10.1109/GPECOM55404.2022.9815672