| Title | Active Reconfigurable MIMO Communications: Capacity Maximization Pattern Design |
| Authors | Wang, Haonan Li, Ang Liu, Ya-Feng Qin, Qibo Song, Lingyang Li, Yonghui |
| Affiliation | Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian, Shaanxi, Peoples R China Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China Shanghai Huawei Technol Co Ltd, Wireless Network RAN Res Dept, Shanghai, Peoples R China Peking Univ, Sch Elect Engn & Comp Sci, Beijing, Peoples R China Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia |
| Keywords | INTELLIGENT SURFACES INTERFERENCE EXPLOITATION MULTIUSER COMMUNICATIONS STATE TRANSMISSION SYSTEM |
| Issue Date | 2022 |
| Publisher | 2022 IEEE 12TH SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP (SAM) |
| Abstract | Reconfigurable Intelligent Surface (RIS) can improve the channel quality by smartly reconfiguring the wireless communication environment and has therefore received extensive research attention. In this paper, we propose to deploy the programmable metasurface at the base station of a cellular wireless communication system to formulate an active RIS system termed the pattern reconfigurable multi-input multi-output (PRMIMO), which can modify the propagation environment actively by reconfiguring the radiation pattern of the transmit antenna array. We focus on the capacity maximization pattern design in PR-MIMO systems, where SDR-based solutions with Gaussian randomization are first discussed. We further propose an eigenvalue optimization based pattern design scheme and a heuristic closed-form scheme based on the physical mechanism of the reconfigurable pattern on the wireless channel. Numerical results demonstrate that active radiation pattern design leads to an improved capacity performance for PR-MIMO over traditional MIMO systems with fixed radiation characteristics. |
| URI | http://hdl.handle.net/20.500.11897/670215 |
| ISBN | 978-1-6654-0633-8 |
| DOI | 10.1109/SAM53842.2022.9827894 |
| Indexed | CPCI-S(ISTP) |
| Appears in Collections: | 信息科学技术学院 |
