车载 DTN 上的数据卸载:名古屋全市可行性研究

IF 5.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Open Journal of Vehicular Technology Pub Date : 2024-07-15 DOI:10.1109/OJVT.2024.3427326
Takamasa Higuchi;Lei Zhong;Ryokichi Onishi
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引用次数: 0

摘要

联网车辆带来的网络流量不断增加,给蜂窝网络有限的带宽资源造成了压力。车对车(V2V)通信中的容错网络(DTN)被认为是卸载蜂窝数据流量的有效手段,但其在城市道路交通中的量化性能在许多方面仍不明确。本文通过在日本名古屋进行城市规模的网络模拟,揭示了车载 DTN 的数据卸载优势。模拟场景包括连续五天超过 800 万次的车辆出行。车辆路线根据道路交通量的公共统计数据进行了仔细校准,以真实模拟道路上车辆之间的 V2V 通信机会。结果表明,在由公共交通和私家车组成的混合城市道路交通中,车载 DTN 具有强大的潜力--即使参与车载 DTN 的车辆比例有限,也能将大量数据流量从蜂窝网络卸载到 V2V 通信网络。
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Data Offloading Over Vehicular DTNs: City-Wide Feasibility Study in Nagoya
The increasing network traffic from connected vehicles is putting a strain on the limited bandwidth resources of cellular networks. Delay-tolerant networking (DTN) over vehicle-to-vehicle (V2V) communications has been considered as an effective means of offloading the cellular data traffic, while its quantitative performance in urban road traffic remains unclear in many aspects. In this paper, we unveil the benefits of data offloading over vehicular DTNs by city-scale network simulations in Nagoya, Japan. The simulation scenario embraces more than 8 million vehicle trips over five consecutive days. The vehicle routes are carefully calibrated against public statistics on the road traffic volume to enable realistic simulations of V2V communication opportunities between vehicles on the road. The results indicate the strong potential of vehicular DTNs in mixed urban road traffic, comprised of both public transport and privately owned vehicles – a large amount data traffic can be offloaded from cellular networks to V2V communication networks even with the limited ratio of vehicles participating the vehicular DTNs.
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CiteScore
9.60
自引率
0.00%
发文量
25
审稿时长
10 weeks
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