Enhanced SPS Velocity-adaptive Scheme: Access Fairness in 5G NR V2I Networks

• URL: http://arxiv.org/abs/2501.08037v2
• Date: Thu, 16 Jan 2025 06:44:29 GMT
• Title: Enhanced SPS Velocity-adaptive Scheme: Access Fairness in 5G NR V2I Networks
• Authors: Xiao Xu, Qiong Wu, Pingyi Fan, Kezhi Wang,
• Abstract summary: Vehicle-to-Infrastructure (V2I) technology enables information exchange between vehicles and road infrastructure. This paper formulates an optimization problem for vehicular networks. It proposes a multi-objective optimization scheme to address it by adjusting the selection window in the SPS mechanism of 5G NR V2I mode-2.
• Score: 20.986636246659685
• License:
• Abstract: Vehicle-to-Infrastructure (V2I) technology enables information exchange between vehicles and road infrastructure. Specifically, when a vehicle approaches a roadside unit (RSU), it can exchange information with the RSU to obtain accurate data that assists in driving. With the release of the 3rd Generation Partnership Project (3GPP) Release 16, which includes the 5G New Radio (NR) Vehicle-to-Everything (V2X) standards, vehicles typically adopt mode-2 communication using sensing-based semi-persistent scheduling (SPS) for resource allocation. In this approach, vehicles identify candidate resources within a selection window and exclude ineligible resources based on information from a sensing window. However, vehicles often drive at different speeds, resulting in varying amounts of data transmission with RSUs as they pass by, which leads to unfair access. Therefore, it is essential to design an access scheme that accounts for different vehicle speeds to achieve fair access across the network. This paper formulates an optimization problem for vehicular networks and proposes a multi-objective optimization scheme to address it by adjusting the selection window in the SPS mechanism of 5G NR V2I mode-2. Simulation results demonstrate the effectiveness of the proposed scheme

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