Coupling cellular communication networks with vehicular ad hoc networks (VANET) can be a very interesting way out for providing Internet access to vehicles in the road. However, due to the several specific characteristics of VANETs, making an efficient multi-hop routing from vehicular sources to the Internet gateways through Long Term Evolution (LTE) technology is still challenging. In this paper, an Internet mobile gateway selection scheme is proposed to elect more potential vehicles to behave as gateways to Internet in VANETs. Therefore, the discovery and the selection of route to those mobiles gateways is carried out via an efficient multiple metrics-based relay selection mechanism. The objective is to select the more reliable route to the mobile gateways, by reducing the communication overhead and performing seamless handover. The proposed protocol is compared with one recent protocol based on packet delivery ratio, average end-to-end delay and overhead. The results show that the proposed protocol ameliorates significantly the network performance in the contrast of the other protocol.

翻译：中文摘要： 将蜂窝通信网络与车辆自组网（VANET）相结合，可以为道路上的车辆提供互联网接入。 然而，由于VANET的多个特殊性质，通过长期演化（LTE）技术实现从汽车源到互联网网关的高效多跳路由仍然具有挑战性。 本文提出了一种互联网移动网关选择方案，以选举更多潜在的车辆作为VANET中的互联网网关。因此，通过有效的基于多种度量的中继选择机制实现发现和选择到这些移动网关的路由。目的是选择更可靠的路由到移动网关，以通过减少通信开销和执行无缝切换来提高网络性能。将所提出的协议与基于数据包传递率，平均端到端延迟和开销的最近协议进行比较。结果表明，相对于其他协议，所提出的协议显着改善了网络性能。