_applied sciences_  
_Article_  
**Optimizing V2X Communication: Spectrum Resource Allocation and Power Control Strategies for Next-Generation Wireless Technologies**  
**[PERSON] 1, [PERSON] 1,\({}^{\star}\), [PERSON] 2, [PERSON] 3 and [PERSON] 1**  
Footnote 1: [[https://www.mdpi.com/journal/applsci](https://www.mdpi.com/journal/applsci)]([https://www.mdpi.com/journal/applsci](https://www.mdpi.com/journal/applsci))  
Footnote 2: [[https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/)]([https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/))  
Footnote 3: [[https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/)]([https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/))  
Footnote 4: [[https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/)]([https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/))  
Footnote 5: [[https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/)]([https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/))  
Footnote 6: [[https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/)]([https://www.mdpi.com/journals/pdfs/](https://www.mdpi.com/journals/pdfs/))  
Footnote 7:  
role in enhancing road safety, optimizing traffic efficiency, and facilitating the provision of information services [13; 14]. The V2X communication network is designed to accommodate various applications, each with its specifications. It includes vehicle-to-infrastructure (V2I) communication, vehicle-to-vehicle (V2V) communication, and vehicle-to-pedestrian (V2P) communication [15; 16; 17]. However, the transition to 6G communications introduces a formidable challenge to the resource-allocation system, particularly when autonomous distributed vehicles are in operation, given the stringent requirements for extremely high throughput, low latency, and unwavering dependability [18; 19]. This necessitates a comprehensive reassessment of the resource-management strategies to ensure the seamless integration of these cutting-edge technologies into the future landscape of connected and autonomous vehicles [20; 21].  
The primary objective of vehicular networks is to facilitate cooperative automated driving, thereby minimizing accidents and optimizing the efficient use of existing roadways [22; 23]. However, achieving this goal poses significant challenges in terms of resource management and power control [24; 25; 26]. In the implementation of V2X communication, the critical issue of resource allocation naturally comes to the forefront, prompting researchers to devote considerable attention to the intricacies of V2X resource allocation [27; 28]. One possible solution to the resource-allocation problem is to use device-to-device (D2D) technology, which supports direct communication between devices and can reuse the spectrum resources of cellular users, with many advantages such as low latency and high spectral efficiency [29]. Consequently, its application in V2X communication has evolved into an indispensable scenario in the next-generation mobile communication system [30; 31]. The challenge of resource allocation in V2X communication stems from the reliance on conventional D2D technology. However, the unique attributes of vehicle communication, notably its capability for high-speed mobility, render resource-allocation methodologies tailored for D2D technology unsuitable for direct implementation in V2X communication [32]. Therefore, in light of the constraints posed by limited spectrum resources, the paramount objective is to devise an appropriate strategy for resource management that can effectively cater to the rigorous demands of V2X communication, particularly in meeting high-speed requirements.