School of Software, Soongsil University, Dongjak-gu, Seoul 06978, Korea.
Division of Electronics & Info-Communication Engineering at Yeungjin College, Buk-gu, Daegu 41527, Korea.
Sensors (Basel). 2018 Oct 25;18(11):3622. doi: 10.3390/s18113622.
Vehicular ad hoc networks (VANETs) provide information and entertainment to drivers for safe and enjoyable driving. Wireless Access in Vehicular Environments (WAVE) is designed for VANETs to provide services efficiently. In particular, infotainment services are crucial to leverage market penetration and deployment costs of the WAVE standard. However, a low presence of infrastructure results in a shadow zone on the road and a link disconnection. The link disconnection is an obstacle to providing safety and infotainment services and becomes an obstacle to the deployment of the WAVE standard. In this paper, we propose a cooperative communication protocol to reduce performance degradation due to frequent link disconnection in the road environment. The proposed protocol provides contention-free data delivery by the coordination of roadside units (RSUs) and can provide the network QoS. The proposed protocol is shown to enhance throughput and delay through the simulation.
车联网（VANETs）为驾驶员提供信息和娱乐，以实现安全和愉快的驾驶。无线访问车辆环境（WAVE）专为 VANETs 设计，可有效提供服务。特别是，信息娱乐服务对于利用 WAVE 标准的市场渗透率和部署成本至关重要。然而，基础设施的缺乏导致道路上出现阴影区域和链路中断。链路中断是提供安全和信息娱乐服务的障碍，也成为 WAVE 标准部署的障碍。在本文中，我们提出了一种协作通信协议，以减少道路环境中频繁链路中断导致的性能下降。该协议通过协调路边单元（RSU）提供无争用的数据传输，并可以提供网络服务质量。通过仿真表明，该协议可以提高吞吐量和延迟。
