Intelligent Reflecting Surface-Aided Wireless Communication with Movable Elements
Guojie Hu, Qingqing Wu, Dognhui Xu, Kui Xu, Jiangbo Si, Yunlong Cai,, and Naofal Al-Dhahir

TL;DR
This paper proposes a novel IRS design with movable elements and non-uniform discrete phase shifts, significantly enhancing wireless communication performance by eliminating phase distribution offsets and reducing manufacturing complexity.
Contribution
It introduces a movable IRS element design that enables unified non-uniform phase shifts, improving performance and lowering costs compared to fixed-position IRSs with uniform phase shifts.
Findings
Significant performance improvement over benchmarks
Unified non-uniform DPS pattern achieved with movable elements
Elimination of phase distribution offset across channels
Abstract
Intelligent reflecting surface (IRS) has been recognized as a powerful technology for boosting communication performance. To reduce manufacturing and control costs, it is preferable to consider discrete phase shifts (DPSs) for IRS, which are set by default as uniformly distributed in the range of in the literature. Such setting, however, cannot achieve a desirable performance over the general Rician fading where the channel phase concentrates in a narrow range with a higher probability. Motivated by this drawback, we in this paper design optimal non-uniform DPSs for IRS to achieve a desirable performance level. The fundamental challenge is the \textit{possible offset in phase distribution across different cascaded source-element-destination channels}, if adopting conventional IRS where the position of each element is fixed. Such phenomenon leads to different patterns of…
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 · Underwater Vehicles and Communication Systems
