相关实验视频
Updated: Jan 18, 2026

07:45
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
11.3K
在硬件故障的多天线合作NOMA网络中的短包通信
Xingang Zhang1,2,3, Dechuan Chen1,2, Jianwei Hu4
1School of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, China.
Sensors (Basel, Switzerland)
|September 13, 2025
概括
这项研究增强了使用短包通信的合作性非对角多重访问 (NOMA) 网络. 拟议的多天线NOMA方案在硬件损坏的情况下显著提高了240%的有效吞吐量.
科学领域:
- 无线通信网络是无线通信网络.
- 对于通信的信号处理.
- 信息理论是信息理论.
背景情况:
- 非对角多重接入 (NOMA) 是未来无线网络的关键技术,可实现更高效的频谱利用.
- 短包通信对于低延迟应用程序越来越重要.
- 硬件损坏可以显著降低无线系统的性能.
研究的目的:
- 分析多天线合作NOMA网络的性能,在硬件损坏的情况下进行短包通信.
- 导出平均块错误率 (BLER) 和有效吞吐量的封闭式表达式.
- 通过在延迟和可靠性约束下优化块长度来最大限度地提高有效吞吐量.
主要方法:
- 该研究使用多天线源传输叠加编码的NOMA信号.
- 使用一个具有连续干扰取消 (SIC) 的解码和转发 (DF) 继电器.
- 在源头采用最大比率传输 (MRT) 和远端用户采用选择组合 (SC).
- 对纳卡加米色通道进行分析.
主要成果:
- 平均BLER和有效吞吐量的封闭式表达式得到导出.
- 通过调整块长度来优化有效吞吐量.
- 模拟验证了分析结果.
结论:
- 拟议的多天线合作NOMA计划与短包提供了显著的性能改进.
- 与现有的NOMA方案相比,双天线配置可以实现高达240%的有效吞吐量.
- 区块长度的优化有效地平衡了延迟和可靠性,以提高吞吐量.
相关概念视频
Maximum Power Transfer
828
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...
828
Propagation Speed of Electromagnetic Waves
4.6K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
4.6K
Receiver Operating Characteristic Plot
471
A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...
471
The Antenna Complex
7.7K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
7.7K
Short-distance Transport of Resources
17.5K
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.
17.5K
Mesh Analysis for AC Circuits
669
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
669

