QoS-Balancing Algorithm for Optimal Relay Selection in Heterogeneous Vehicular Networks
QoS-Balancing Algorithm for Optimal Relay Selection in Heterogeneous Vehicular Networks
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DOI：
10.1109/tits.2021.3076901
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发表时间：
2021-04
影响因子：
8.5
通讯作者：
Aljawharah Alnasser;Hongjian Sun;Jing Jiang
中科院分区：
文献类型：
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作者：
Aljawharah Alnasser;Hongjian Sun;Jing Jiang
智能交通系统（ITS）可以促进各种道路实体之间的通信，以提高驾驶员的安全性和驾驶体验。这些通信被称为车辆到一切（V2X）通信，可以由LTE-V 2X协议支持。由于V2X中网络拓扑的频繁变化，源节点（例如，车辆）可能必须选择设备到设备（D2 D）中继节点来将其分组转发到目的地节点。在本文中，我们提出了一种新的方法来选择一个最佳的D2 D中继节点。所提出的方法考虑用于选择D2 D中继节点的服务质量（QoS）要求。它采用层次分析法（AHP）进行决策。决策准则与信道容量、链路稳定性和端到端时延有关。考虑到各种网络场景进行了一些模拟，以评估所提出的方法的性能。仿真结果表明，与现有方法相比，该方法的丢包率提高了30%，投递率提高了23%。
Intelligent Transportation System (ITS) could facilitate communications among various road entities to improve the driver’s safety and driving experience. These communications are called Vehicle-to-Everything (V2X) communications that can be supported by LTE-V2X protocols. Due to frequent changes of network topology in V2X, the source node (e.g., a vehicle) may have to choose a Device-to-Device(D2D) relay node to forward its packet to the destination node. In this paper, we propose a new method for choosing an optimal D2D relay node. The proposed method considers Quality of Service (QoS) requirements for selecting D2D relay nodes. It employs an Analytic Hierarchy Process (AHP) for making decisions. The decision criteria are linked with channel capacity, link stability and end-to-end delay. A number of simulations were performed considering various network scenarios to evaluate the performance of the proposed method. Simulation results show that the proposed method improves Packet Dropping Rate (PDR) by 30% and delivery ratio by 23% in comparison with the existing methods.