Cost-Effective Vehicular Communication Networking

经济高效的车载通信网络

• 批准号: RGPIN-2014-03806
• 负责人: Shen, Xuemin
• 金额: $ 3.72万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=587424
• 关键词: Cost; Effective; Vehicular; Communication; Networking

Vehicular communication networks are envisioned to support various applications for road safety, smart transportation, in-vehicle Internet access, and location dependent services. The paradigm has received strong support from government agencies (especially in allocating radio spectrum), academia, and industry in both telecommunication and automotive sectors. The highly dynamic network topology with intermittent links, due to high user mobility, not only poses significant technical challenges in network operation and service provisioning, but also potentially offers new opportunities for networking solutions to achieve performance optimization. As a result, significant R&D efforts are required to ensure efficient and reliable end-to-end information delivery via both vehicle-to-vehicle and vehicle-to-infrastructure multi-hop connections. The long-term goal of this research program is to develop innovative cost-effective wireless networking solutions for delivering broadband Internet services to users in vehicles. The short-term objectives in the next five years are to study fundamental issues in vehicular networking, to establish new mathematical models to capture network dynamics, and to gain an in-depth understanding of network performance trade-offs. In particular, we consider a heterogeneous networking paradigm, where the wireless network infrastructure includes cellular networks and roadside WiFi networks. We focus on cost-effective downlink Internet data services to vehicle users, in terms of per-user throughput per unit cost for the network infrastructure deployment and operation. The research includes three thrusts: (1) Network capacity and service delay analysis - We will develop a cost-effective networking architecture for vehicle users to access the Internet, via establishing fundamental relations between network capacity, average service delay, and infrastructure deployment and operation cost; (2) Cooperative drive-thru access - Vehicles on a road segment form a linear cluster and can cooperatively download contents from the Internet via WiFi access points upon consecutive drive-thru. We will develop a cooperative WiFi drive-thru communication framework to maximize the data volume delivered to vehicle users, taking account of temporal and spatial dynamics in vehicle traffic density, randomness in user mobility and radio propagation channels; (3) Opportunistic WiFi offloading - We will establish an interworking framework between WiFi and cellular networks for opportunistic data traffic offloading from cellular networks to WiFi networks, while satisfying service quality requirements. The framework should take advantage of vehicle high speed in coping with the service coverage gaps between neighboring WiFi access points.The research outcomes are expected to have a profound scientific, technological, and social impact, in providing in-depth understanding and guidelines for developing cost-effective vehicular networking algorithms and protocols, and in providing many potential new on-road services and applications. This research program will train a large pool of highly qualified personnel, providing the trainees with valuable knowledge and research experiences in wireless networking, and enabling them to emerge as expert additions to the Canadian high technology industry labor force.

车载通信网络被设想为支持道路安全、智能交通、车载互联网接入和位置相关服务的各种应用。这一模式得到了政府机构(特别是在分配无线电频谱方面)、学术界以及电信和汽车行业的大力支持。由于用户的高移动性，具有间歇性链路的高度动态的网络拓扑不仅在网络运营和服务提供方面提出了重大的技术挑战，而且潜在地为网络解决方案提供了实现性能优化的新机会。因此，需要进行大量的研发工作，以确保通过车辆到车辆和车辆到基础设施的多跳连接提供高效和可靠的端到端信息。这项研究计划的长期目标是开发创新的、具有成本效益的无线网络解决方案，为车载用户提供宽带互联网服务。未来五年的短期目标是研究车载网络的基本问题，建立新的数学模型来捕获网络动态，并深入了解网络性能的权衡。特别是，我们考虑了一种异类网络模式，其中无线网络基础设施包括蜂窝网络和路边WiFi网络。我们专注于为车辆用户提供具有成本效益的下行互联网数据服务，即每用户单位吞吐量的网络基础设施部署和运营成本。研究包括三个方面：(1)网络容量和服务延迟分析-通过建立网络容量、平均服务延迟和基础设施部署和运营成本之间的基本关系，我们将为车辆用户接入互联网开发具有成本效益的网络架构；(2)协同得来速接入-路段上的车辆形成线性集群，可以在连续得来速时通过WiFi接入点从互联网上协同下载内容。我们将开发一个协作WiFi得来速通信框架，以最大限度地向车辆用户提供数据量，同时考虑到车辆交通密度的时空动态、用户移动性和无线电传播渠道的随机性；(3)机会性WiFi分流-我们将建立WiFi和蜂窝网络之间的互通框架，在满足服务质量要求的同时，将机会性数据流量从蜂窝网络分流到WiFi网络。该框架应利用车载高速处理相邻WiFi接入点之间的服务覆盖差距，研究成果有望产生深远的科学、技术和社会影响，为开发具有成本效益的车载网络算法和协议提供深入的理解和指导，并提供许多潜在的新的道路服务和应用。这项研究计划将培养一大批高素质的人才，为学员提供宝贵的无线网络知识和研究经验，并使他们成为加拿大高科技产业劳动力的专家补充。