相关实验视频

Updated: Jan 29, 2026

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

Published on: November 7, 2017

在3GPP兼容的无线通道中用于Uplink MU-SIMO的无监督神经光束形成

Cemil Vahapoglu^1,2, Timothy J O'Shea², Wan Liu²

¹Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA.

Sensors (Basel, Switzerland)

|January 28, 2026

概括

深度学习光束成型为无线系统提供了适应性解决方案. 基于变压器的模型在复杂的场景中表现出色,而更简单的神经网络则为不那么苛刻的条件提供了高效的替代方案,优于传统方法.

科学领域:

无线通信系统无线通信系统
信号处理信号处理
机器学习机器学习

背景情况:

传统的线性光束成型 (ZFBF,MMSE) 与不完美的CSI和高维度等非理想条件作斗争.
深度学习通过利用神经网络功能提供了适应性,数据驱动的束形解决方案.
现有的深度学习方法缺乏在现实的无线环境中进行系统的比较和分析.

研究的目的:

系统地比较两个无监督的深度学习波束成形架构用于上链接接收波束成形.
在多用户系统中对传统方法 (ZFBF,MMSE) 进行性能评估.
分析这些深度学习模型的计算复杂性和可扩展性.

主要方法:

开发并比较了一个简单的神经网络光束成形 (NNBF) 模型 (CNNs,完全连接的层) 和基于变压器的NNBF模型.
在使用3GPP TDL-A和UMa通道模型的多用户单输入多输出 (MU-SIMO) 系统中评估模型.
进行了基于FLOP的复杂性分析,以表征推理时间缩放行为.

主要成果:

基于变压器的NNBF在现实条件下 (不完善的CSI,移动性) 实现了卓越的性能,尽管计算成本更高.
简单的NNBF显示了比ZFBF/MMSE具有相似或更好的性能,在简化假设下 (完美的CSI,静态UE) 的复杂性明显较低.
这两种NNBF架构都显示出适应性和可扩展性束形解决方案的潜力.

结论:

深度学习光束成型,特别是基于变压器的模型,为传统的无线通信方法提供了强大而适应性的替代方案.
简单和基于变压器的NNBF之间的选择取决于性能要求和计算约束之间的权衡.
这项研究为深度学习在光束成形中的实际应用和性能扩展提供了宝贵的见解.

关键词:

这就是"MIMO MIMO".神经束形成神经束形成吞吐量最大化吞吐量最大化没有监督的学习学习.上升链路光束形成

更多相关视频

A GMP-Compliant Procedure for the Generation of Gene-Modified T cells

A GMP-Compliant Procedure for the Generation of Gene-Modified T cells

Published on: October 6, 2023

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

Published on: November 24, 2016

相关概念视频

Ion Channels

Ion Channels

The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...

Neural Regulation

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

Non-gated Ion Channels

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....

Channels of Non-Verbal Communication

Channels of Non-Verbal Communication

Non-verbal communication plays a critical role in human interaction, influencing how individuals perceive emotions and psychological states. It operates through four primary channels: facial expressions, eye contact, body language, and touch. These non-verbal cues help convey meaning beyond spoken language and are often culturally influenced.Facial Expressions and Emotional RecognitionFacial expressions are among the most powerful and universal forms of non-verbal communication. Research has...

G-Protein Gated Ion Channels

G-Protein Gated Ion Channels

GPCRs are primarily responsible for our sense of smell, taste, and vision. The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory...