Socially Aware V2X Networks With RIS: Joint Resource Optimization

doi:10.1109/TVT.2022.3158955

Socially Aware V2X Networks With RIS: Joint Resource Optimization

2022-06-01

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DOI：10.1109/TVT.2022.3158955

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Inspired by the promising potentialof reconfigurable intelligent surface (RIS)-based transmission, this paper investigates the RIS-aided vehicle-to-everything (V2X) communication system with the social trust, where multiple vehicle-to-infrastructure (V2I) links share the spectrum with vehicle-to-vehicle (V2V) links. Subject to the reliability constraint of V2V links, the sum V2I link capacity is maximized, through jointly optimizing the power allocation, RIS reflection coefficients and spectrum allocation. The formulated mix-integer and non-convex problem is effectively converted into three subproblems, which can be iteratively solved by our proposed three-stage joint resource allocation and RIS optimization (JRARO) algorithm. Simulation results demonstrate the effectiveness of the proposed algorithm, and that the RIS can significantly improve the quality of vehicular communications in terms of the sum V2I capacity.

Keywords:

Resource management

Device-to-device communication

Optimization

Vehicle-to-everything

Quality of service

Interference channels

Uplink

Reconfigurable intelligent surface

V2X

social trust

resource optimization

Socially Aware V2X Networks With RIS: Joint Resource Optimization

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