Abstract
Reconfigurable intelligent surfaces (RIS) aided multiple user interference mitigation with constant modulus constraint (CMC) is a key issue in the future 6G communication systems. Usually, the existing methods solve this problem either by relaxing the CMC with performance degrading or by relaxing the cost function with huge computational cost. To achieve a good trade-off between the performance and the complexity, a Fast Successive Upper-bound Minimization (FSUM) method is proposed. In the proposed method, the problem is first reformulated as a penalty quadratic function with CMC. Then, by efficiently finding the surrogate function, a FSUM algorithm is derived to obtain the solution. Compared with the existing methods, the proposed method can achieve 0.4 bits/Hz/s average sum-achievable rate gain enhancement.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
