信息分析的时代为多重优先级队列和非整体多重访问 (NOMA) - 启用蜂车辆到车辆互联网中的一切
Zheng Zhang1, Qiong Wu1, Pingyi Fan2
1School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China.
Sensors (Basel, Switzerland)
|January 8, 2025
概括
本研究引入了一种新方法,通过使用优先排队和高级资源选择来减少连接车辆的消息延迟. 这提高了车辆网络中紧急数据的实时通信.
科学领域:
- 车辆通讯 车辆通讯
- 无线网络无线网络.
- 信息理论 信息理论
背景情况:
- 车辆互联网 (IoV) 要求实时数据处理,挑战传统方法.
- 蜂车辆到一切 (C-V2X) 模式4由于分布式资源选择而面临碰撞.
- 信息时代 (AoI) 对车辆网络可靠性和延迟至关重要.
研究的目的:
- 为C-V2X系统提出AOI估计方法.
- 分析多优先级队列和非直角多重访问 (NOMA) 对AOI的影响.
- 优化资源选择,减少车辆网络中的延迟.
主要方法:
- 开发了一种使用多优先级数据类型队列的AoI估计方法.
- 集成非直角多重接入 (NOMA) 以减轻碰撞效应.
- 在不同的资源储备区间 (RRI) 条件下评估系统性能.
主要成果:
- 多重优先级队列大大减少了紧急消息的 AoI.
- 在C-V2X系统中,NOMA进一步降低了消息AOI.
- 拟议的方法提高了关键数据的整体车辆网络服务质量.
结论:
- 优先考虑数据队列在C-V2X中的AoI管理中是有效的.
- NOMA 提高了 AoI 的性能,特别是在高流量条件下.
- 结合的方法为实时车辆通信提供了强大的解决方案.
更多相关视频
11:41Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
Published on: February 1, 2020
20.3K
07:49Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
Published on: November 26, 2019
8.0K
相关概念视频
Maximum Power Flow and Line Loadability
94
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
94
Transmission Line Design Considerations
119
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
119
Maximum Power Transfer
224
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
224
Network Function of a Circuit
255
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
255
Linear time-invariant Systems
209
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
209
Ampere-Maxwell's Law: Problem-Solving
536
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
536
