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Electrical Engineering and Systems Science > Signal Processing

arXiv:2001.03344 (eess)
This paper has been withdrawn by Yashuai Cao
[Submitted on 10 Jan 2020 (v1), last revised 12 Mar 2025 (this version, v2)]

Title:Sum Rate Maximization for Reconfigurable Intelligent Surface Assisted Device-to-Device Communications

Authors:Yashuai Cao, Tiejun Lv
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Abstract:In this letter, we propose to employ reconfigurable intelligent surfaces (RISs) for enhancing the D2D underlaying system performance. We study the joint power control, receive beamforming, and passive beamforming for RIS assisted D2D underlaying cellular communication systems, which is formulated as a sum rate maximization problem. To address this issue, we develop a block coordinate descent method where uplink power, receive beamformer and refection phase shifts are alternatively optimized. Then, we provide the closed-form solutions for both uplink power and receive beamformer. We further propose a quadratic transform based semi-definite relaxation algorithm to optimize the RIS phase shifts, where the original passive beamforming problem is translated into a separable quadratically constrained quadratic problem. Numerical results demonstrate that the proposed RIS assisted design significantly improves the sum-rate performance.
Comments: I have mistakely submit a new version earlier as given by arXiv:2108.07091, without the use of replacement
Subjects: Signal Processing (eess.SP); Information Theory (cs.IT)
Cite as: arXiv:2001.03344 [eess.SP]
  (or arXiv:2001.03344v2 [eess.SP] for this version)
  https://doi.org/10.48550/arXiv.2001.03344

Submission history

From: Yashuai Cao [view email]
[v1] Fri, 10 Jan 2020 08:31:03 UTC (257 KB)
[v2] Wed, 12 Mar 2025 04:29:43 UTC (1 KB) (withdrawn)
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