2020/03/17 by Ali Bereyhi, Bereyhi, Ali, Vahid Jamali +9 · 1 citation
Engineering · #Advanced Antenna and Metasurface Technologies #Antenna Design and Analysis #Antenna Design and Optimization #FOS: Computer and information sciences #FOS: Electrical engineering #Information Theory (cs.IT) #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2003.07885
openalex publication_date 2020/03/17 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
In this work, we propose a new single-RF MIMO architecture which enjoys high\nscalability and energy-efficiency. The transmitter in this proposal consists of\na single RF illuminator radiating towards a reflecting surface. Each element on\nthe reflecting surface re-transmits its received signal after applying a\nphase-shift, such that a desired beamforming pattern is obtained. For this\narchitecture, the problem of beamforming is interpreted as linear regression\nand a solution is derived via the method of least-squares. Using this\nformulation, a fast iterative algorithm for tuning of the reflecting surface is\ndeveloped. Numerical results demonstrate that the proposed architecture is\nfully compatible with current designs of reflecting surfaces.\n