Adaptive Data Transmission Control for Reliable and Efficient Spatio-Temporal Data Retention by Vehicles
Adaptive Data Transmission Control for Reliable and Efficient Spatio-Temporal Data Retention by Vehicles
复制标题
自适应数据传输控制，实现车辆可靠、高效的时空数据保留
作者：
Hiroki Teshiba;Daiki Nobayashi;K. Tsukamoto;T. Ikenaga
车辆已经深入社会，成为我们日常生活中必不可少的东西，它有两大特点可以与传统的通信设备（如蜂窝电话）相媲美。首先，由于每辆现代汽车现在都配备了强大的计算能力和巨大的数据存储容量，它们可以轻松地收集、处理和单独存储大量数据。其次，它们具有非常高的移动性，因此可以非常有效地将存储的数据传输和传播到任何地方。因此，在这项研究中，我们专注于车辆自组织网络（VANESTO）只与车辆构建，没有任何外部基础设施的支持。一方面，虽然用户通常可以通过互联网接收各种应用服务，但一些特定的服务，如处理交通和当地天气信息的服务，强烈依赖于地理位置和时间（因此，这些信息在本文中被称为时空数据），这是不容易通过互联网获得的。因此，作为一种手段，以提供时空数据可靠和有效地利用VANET，我们提出了一种自适应传输控制方法，其中每个车辆控制数据传输概率，通过考虑相邻车辆的数据保留密度。通过仿真，我们发现我们提出的方法是有效的保留时空数据。关键词-车载自组网，数据保持，自适应数据传输控制
Vehicles, which have penetrated deeply into society and have become essential to our daily lives, have two major characteristics that are comparable with conventional communication devices (such as cellular phones). First, since each modern vehicle is now equipped with large computational power and vast data storage capacity, they can easily collect, process, and individually store vast amounts of data. Second, they have remarkably high mobility, and can thus transport and spread stored data to everywhere very effectively. Therefore, in this study, we focus on vehicular ad-hoc networks (VANETs) constructed solely with vehicles, and without any support from outside infrastructure. On one hand, although users can usually receive various application services through the Internet, some specific services, such as those handling traffic and local weather information, are strongly dependent on geographical location and time (and so this information is referred to as spatio-temporal data in this paper), which is not readily available via the Internet. Therefore, as a means to providing spatio-temporal data reliably and effectively by exploiting VANET, we propose an adaptive transmission control method in which each vehicle controls data transmission probability by considering the data retention density of neighboring vehicles. Through simulations, we found that our proposed method is effective for retaining spatio-temporal data. Keywords–VANET, Data retention, Adaptive data transmission control