Low-Complexity ADMM-Based Algorithm for Robust Multi-Group Multicast Beamforming in Large-Scale Systems

• Published in: IEEE transactions on signal processing Vol. 70; pp. 2046 - 2061
• Main Authors: Mohamadi, Niloofar, Dong, Min, ShahbazPanahi, Shahram
• Format: Journal Article
• Language: English
• Published: New York IEEE 2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; alternating direction method of multipliers (ADMM); Array signal processing; Beamforming; Closed form solutions; Complexity; Convergence; Covariance matrix; Exact solutions; Interference; Iterative algorithms; Iterative methods; large-scale systems; low-complexity; Multicast algorithms; Multicasting; Optimization; Optimization techniques; Quality of service; Robust multicast beamforming; Robustness; Signal processing algorithms; Signal to noise ratio

We design an efficient robust multi-group multicast beamforming scheme for massive multiple-input multiple-output (MIMO) systems. Assuming only estimates of the channel covariance matrices are available at the base station with a bounded error, we formulate the robust quality-of-service (QoS) proble...