Reconfigurable Intelligent Surface Enhanced NOMA Assisted Backscatter Communication System
Jiakuo Zuo, Yuanwei Liu, Liang Yang, Lingyang Song, Ying-Chang, Liang

TL;DR
This paper introduces a RIS-enhanced NOMA backscatter communication system, formulates a joint optimization problem, and proposes an efficient algorithm, demonstrating improved performance over traditional systems.
Contribution
It presents the first joint optimization framework for RIS-assisted NOMA backscatter communication and develops a low-complexity algorithm for phase and power reflection optimization.
Findings
RIS-NOMABC outperforms conventional NOMABC systems
The proposed algorithm effectively optimizes phase shifts and reflection coefficients
Numerical results validate the system's feasibility and enhanced performance
Abstract
A reconfigurable intelligent surface (RIS) enhanced non-orthogonal multiple access assisted backscatter communication (RIS-NOMABC) system is considered. A joint optimization problem over power reflection coefficients and phase shifts is formulated. To solve this non-convex problem, a low complexity algorithm is proposed by invoking the alternative optimization, successive convex approximation and manifold optimization algorithms. Numerical results corroborate that the proposed RIS-NOMABC system outperforms the conventional non-orthogonal multiple access assisted backscatter communication (NOMABC) system without RIS, and demonstrate the feasibility and effectiveness of the proposed algorithm.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced Wireless Communication Technologies · Satellite Communication Systems · UAV Applications and Optimization
