Enhanced SB-SPS Scheme to Mitigate Half Duplex Problem for C-V2X Relay Transmission in Vehicle Platooning

IF 0.3 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC IEICE Communications Express Pub Date : 2024-07-09 DOI:10.23919/comex.2024COL0006

Akito Ohshima;Kohei Murata;Kosuke Sanada;Hiroyuki Hatano;Kazuo Mori

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Abstract

In vehicle platooning, one of the typical applications of Vehicle-to-Vehicle (V2V) communications using C-V2X (Cellular Vehicle-to-Everything), the vehicles need to exchange information such as the velocity and position of a vehicle leading the platoon to achieve safe platoon driving. Relay transmission using sidelink communications, specified by the C-V2X standard, is considered as a potential approach for information exchange in vehicle platooning. The autonomous resource management scheme, SB-SPS (Sensing Based Semi Persistent Scheduling), has been standardized for sidelink communications. However, half duplex problem, one of major problems in the SB-SPS, is not sufficiently resolved for the relay transmission in vehicle platooning. This work proposes an enhanced SB-SPS scheme to mitigate half duplex problem and improve the transmission performance for the relay transmission in vehicle platooning. The performance evaluation through computer simulation demonstrates the effectiveness of the proposed scheme.

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改进SB-SPS方案缓解车辆队列中C-V2X中继传输的半双工问题

在车辆队列中，使用C-V2X （Cellular vehicle -to- everything）的车辆对车辆（V2V）通信的典型应用之一是车辆对车辆（vehicle -to- everything），车辆需要交换引导队列的车辆的速度和位置等信息，以实现安全的队列驾驶。使用C-V2X标准规定的旁链通信的中继传输被认为是车辆队列中信息交换的潜在方法。自主资源管理方案SB-SPS（基于感知的半持久调度）已被标准化用于副链路通信。半双工问题是SB-SPS的主要问题之一，但在车辆队列中继传输中没有得到充分解决。针对车辆队列中继传输中出现的半双工问题，提出了一种增强的SB-SPS方案，提高了传输性能。通过计算机仿真对该方案进行了性能评估，验证了该方案的有效性。

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IEICE Communications Express ENGINEERING, ELECTRICAL & ELECTRONIC-

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33.30%

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114