适应性框架结构设计用于车辆到基础设施场景中的传感辅助下链通信
Junliang Yao1, Ze Wang1, Chunli Zhang1
1Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing, Xi'an University of Technology, Xi'an 710048, China.
Sensors (Basel, Switzerland)
|August 10, 2024
概括
本研究介绍了车辆到一切 (V2X) 通信的自适应框架结构,减少了智能运输系统中通道估计需求. 新设计通过最大限度地减少高速车辆的开销来提高通信吞吐量.
科学领域:
- 无线通信是一种无线通信.
- 智能运输系统 智能运输系统
- 信号处理 信号处理
背景情况:
- 车辆到一切 (V2X) 系统中的高速移动性导致快速的无线通道变化,由于频繁的通道估计和反,增加了通信开销.
- 车辆的机动性需要通过路边单位 (RSU) 进行先进的光束预测和跟踪,以保持可靠的通信.
研究的目的:
- 在V2X场景中为传感辅助下行链路 (DL) 通信提出适应性框架结构.
- 通过优化频道估计频率来减少通信上空成本,并提高高速移动环境中的效率.
主要方法:
- 开发了一种传感辅助的适应性框架结构,用于DL通信.
- 建立了符号错误率 (SER),车辆起始位置和行驶距离之间的理论关系.
- 利用RSU检测到的车辆位置数据来计算实时SER并动态调整通道估计要求.
主要成果:
- 拟议的自适应框架结构消除了当实时SER低于设置值时不必要的通道估计.
- 这种减少通道估计释放了框架结构中的宝贵时间和频率资源.
- 与传统框架结构相比,模拟显示通信吞吐量提高了6%,同时保持了SER性能.
结论:
- 适应式框架结构有效地减少了V2X系统中的通信开销.
- 该方法提高了智能交通的通信吞吐量和资源利用率.
- 感应辅助的自适应框架设计是未来高速移动通信的一个有希望的方法.
相关概念视频
Frames
544
Frames are essential components of various mechanical and structural systems used daily. These structures are known for their stability and ability to bear heavy loads. A frame is constructed using two-force and multi-force members, interconnected using pin joints. In contrast, trusses are made entirely of two-force members.
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
544
Design Example: Alignment of a Road Line Using GIS
47
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
47
Cable Subjected to a Distributed Load
664
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
664
Design Example
321
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
321
Indeterminate Structure
515
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium. Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...
515
Field Application of Global Positioning System
41
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
41


