Reconfigurable Intelligent Surface Empowered Underlaying Device-to-Device Communication

06/03/2020
by   Gang Yang, et al.
0

Reconfigurable intelligent surfaces (RIS) are a new and revolutionary technology to achieve spectrum-, energy- and cost-efficient wireless networks. This paper studies the resource allocation for RIS-empowered device-to-device (D2D) communication underlaying a cellular network, in which an RIS is employed to enhance desired signals and suppress interference between paired D2D and cellular links. We maximize the sum rate of D2D users and cellular users by jointly optimizing the resource reuse indicators, the transmit power and the RIS's passive beamforming. To solve the formulated non-convex problem, we first propose an efficient user-pairing scheme based on relative channel strength to determine the resource reuse indicators. Then, the transmit power and the RIS's passive beamforming are jointly optimized by an iterative algorithm, based on the techniques of alternating optimization, successive convex approximation, Lagrangian dual transform and quadratic transform. Numerical results show that the proposed design outperforms the traditional D2D network without RIS.

READ FULL TEXT

page 1

page 2

page 3

page 5

page 6

research
06/18/2020

Reconfigurable Intelligent Surfaces for Energy Efficiency in D2D Communication Network

In this letter, the joint power control of D2D users and the passive bea...
research
04/19/2023

Resource Allocation in the RIS Assisted SCMA Cellular Network Coexisting with D2D Communications

The cellular network coexisting with device-to-device (D2D) communicatio...
research
08/16/2021

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

This paper proposes to deploy multiple reconfigurable intelligent surfac...
research
07/02/2020

Reconfigurable Intelligent Surface Assisted Device-to-Device Communications

With the evolution of the 5G, 6G and beyond, device-to-device (D2D) comm...
research
01/05/2023

Sum-Rate Maximization in Active RIS-Assisted Multi-Antenna WPCN

In this paper, we propose an active reconfigurable intelligent surface (...
research
02/27/2020

Joint Optimization of Signal Design and Resource Allocation in Wireless D2D Edge Computing

In this paper, we study the distributed computational capabilities of de...
research
07/25/2020

Minimum Overhead Beamforming and Resource Allocation in D2D Edge Networks

Device-to-device (D2D) communications is expected to be a critical enabl...

Please sign up or login with your details

Forgot password? Click here to reset