Energy Efficiency Maximization for C-RANs: Discrete Monotonic Optimization, Penalty, and [Formula Omitted]-Approximation Methods

• Published in: IEEE transactions on signal processing Vol. 66; no. 17; p. 4435
• Main Authors: Kien-Giang Nguyen, Vu, Quang-Doanh, Juntti, Markku, Le-Nam, Tran
• Format: Journal Article
• Language: English
• Published: New York The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 01.01.2018
• Subjects: Approximation; Beamforming; Cloud computing; Dependence; Energy efficiency; Energy transmission; Global optimization; Mathematical models; Power amplifiers; Power consumption; Power efficiency; Signal processing

We study downlink of multiantenna cloud radio access networks with finite-capacity fronthaul links. The aim is to propose joint designs of beamforming and remote radio head (RRH)-user association, subject to constraints on users’ quality-of-service, limited capacity of fronthaul links and transmit p...