Beamforming Design for Active IOS Aided NOMA Networks
Hao Luo, Lu Lv, Qingqing Wu, Zhiguo Ding, Naofal Al‐Dhahir, Jian Chen
Abstract
This letter investigates a new active intelligent omni-surface (IOS) aided non-orthogonal multiple access (NOMA) network. In particular, simple active devices are introduced into the IOS to overcome the “double-fading” effect. A sum achievable rate optimization problem is formulated, where the beamforming vector at the base station and the active IOS coefficients are jointly optimized while satisfying the quality of service requirements of the users. Then, an efficient alternating optimization algorithm is developed to obtain the stationary point solution. Numerical results demonstrate the performance advantage of the proposed active IOS aided NOMA design.
Topics & Concepts
NomaBeamformingComputer scienceComputer networkTelecommunicationsTelecommunications linkAdvanced Wireless Communication TechnologiesOptical Wireless Communication TechnologiesPAPR reduction in OFDM