在云无线电接入网络中进行5G网络切片的合作意识无线电资源分配方案
1New Emerging Technologies and 5G Networks and Beyond Research Chair, Department of Computer Engineering, College of Computer and Information Sciences, King Saud University, P.O. Box 51178, Riyadh 11543, Saudi Arabia.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
一个新的基于优先级的队列模型增强了云无线电接入网络 (C-RAN) 对5G服务的资源利用. 这种模式可以改善增强移动宽带 (eMBB) 和大规模机器类型通信 (mMTC) 的服务质量 (QoS),而不会影响超可靠的低延迟通信 (uRLLC).
科学领域:
- 电信工程 电信工程 电信工程
- 网络资源管理 网络资源管理
- 5G网络架构 5G网络架构
背景情况:
- 5G网络支持各种各样的用例:增强移动宽带 (eMBB),大规模机器类型通信 (mMTC) 和超可靠的低延迟通信 (uRLLC).
- 云无线接入网络 (C-RAN) 和网络切片是5G的关键推动因素,集成网络虚拟化和基带单元 (BBU) 集中.
- 网络切片允许C-RAN BBU池进行虚拟分割,每个池都需要特定的服务质量 (QoS) 指标,如响应时间和资源利用率.
研究的目的:
- 为C-RAN BBU提出一个以优先级为基础的资源分配和排队模式.
- 提高C-RAN资源利用率,同时确保5G切片共存的最低 QoS.
- 优先考虑uRLLC,其次是eMBB,然后是mMTC服务.
主要方法:
- 开发了一个基于优先级的队列模型,将最高优先级分配给uRLLC,其次是eMBB,然后是mMTC.
- 该模型允许eMBB和mMTC服务排队,并将中断的mMTC服务重新排队,以提高服务重新尝试的机会.
- 性能指标是使用连续时间马尔科夫链 (CTMC) 模型来定义和推导的,并通过各种方法来评估.
主要成果:
- 拟议的方案有效地增加了C-RAN资源利用率.
- 它保持了最高优先级的uRLLC切片的 QoS,而没有降解.
- 该模型通过启用重新排队来减少被中断的mMTC切片的强制终止,从而提高它们的服务重试概率.
结论:
- 提出的基于优先级的排队模式显著提高了C-RAN的利用率.
- 它成功地改善了eMBB和mMTC切片的 QoS,同时保留了 uRLLC 的 QoS.
- 该方案代表了优化C-RAN环境中5G网络资源管理的现有方法的进步.
相关概念视频
Radiation: Applications
1.2K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.2K
Short-distance Transport of Resources
16.2K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.2K
The Availability Heuristic
6.0K
A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):
6.0K
Network Function of a Circuit
328
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.
328
Cooperative Binding of Transcription Regulators
6.5K
Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome. Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form...
6.5K
Maximum Power Transfer
293
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...
293


