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相关概念视频

Communication01:03

Communication

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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Communication01:28

Communication

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Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
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Mean free path and Mean free time01:22

Mean free path and Mean free time

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Consider the gas molecules in a cylinder. They move in a random motion as they collide with each other and change speed and direction. The average of all the path lengths between collisions is known as the "mean free path."
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Path Between Thermodynamics States01:21

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Consider the two thermodynamic processes involving an ideal gas that are represented by paths AC and ABC in Figure 1:
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Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
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Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion03:48

Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion

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Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target. At room temperature, a gaseous molecule will experience billions of collisions per second. The mean free path is the average distance a molecule travels between collisions. The mean free path increases with decreasing pressure; in general, the mean free path for a gaseous molecule will be...
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相关实验视频

Updated: Feb 14, 2026

Author Spotlight: 3D Scanning and Augmented Reality for Enhanced Cancer Surgery Communication
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通过节地利用连接汽车中的V2N2V路径来增强V2V通信.

Songmu Heo1, Yoo-Seung Song2, Seungmo Kang1

  • 1Department of Computer Science and Engineering, College of Informatics, Korea University, Anam-Dong, Sungbuk-gu, Seoul 02841, Republic of Korea.

Sensors (Basel, Switzerland)
|February 13, 2026
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概括

本研究介绍了连接车辆的混合通信框架,使用车辆到车辆 (V2V) 和蜂网络,以降低成本实现可靠,低延迟的安全应用视频流.

关键词:
在QoE QoE.在V2N2V中,V2N2V是V2N2V.这是一个V2V通信.蜂成本优化 蜂成本优化连接的车辆连接的车辆.混合多路径多路径.视频流媒体视频流.

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科学领域:

  • 计算机科学 计算机科学
  • 电气工程 电气工程
  • 运输系统 运输系统

背景情况:

  • 联网汽车使用车辆对车辆 (V2V) 和蜂 (车辆对网络对车辆或V2N2V) 接口进行实时应用.
  • 由于成本和可靠性限制,对于安全关键的车辆应用,实现具有低延迟的超可靠通信是具有挑战性的.

研究的目的:

  • 开发一个具有成本效益的超可靠车辆间视频流的框架,以满足严格的服务水平目标 (SLO).
  • 为了解决V2V的不完善可靠性和V2N2V的高延迟变化的局限性,用于安全应用,如通过路过的透视和受阻视图辅助.

主要方法:

  • 通过城市首尔环境测量,描述了V2V和V2N2V通信路径.
  • 提出了一个混合框架,使用V2V作为主要路径和V2N2V来选择性转发丢失的数据包.
  • 实施了一种使用实时协议 (RTP) 头进行高效的数据包丢失识别的双损失检测机制.

主要成果:

  • 混合框架实现了99.96%的数据包接收率和99.71%的回放率,接近无损传输.
  • 蜂利用率保持在5.54%,比V2V损失率增加很少.
  • 与数据包丢失率 (PLR) 交换相比,成本降低了7倍,视频摊位减少了10倍.

结论:

  • 在混合V2V和V2N2V方法中的数据包级别选择冗余使成本效益高,超可靠的V2X通信成为可能.
  • 拟议的框架成功地满足了对安全关键车辆应用的严格延迟和可靠性要求.
  • 该解决方案提供了一种可扩展和高效的方法,用于提高车辆通信可靠性,同时管理蜂成本.