推进非视线通信:对最先进技术的全面审查以及能源采集的作用
Yasir Al-Ghafri1, Hafiz M Asif1, Naser Tarhuni1
1Department of Electrical and Computer Engineering, College of Engineering, Sultan Qaboos University, Muscat 123, Oman.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
先进的无线网络使用非直角多重接入 (NOMA) 与合作中继和智能反射表面 (IRS) 等技术,以提高非视线 (NLoS) 环境中的光谱效率. 这些综合解决方案提高了连接性和可持续性.
科学领域:
- 无线通信系统无线通信系统
- 信号处理 信号处理
- 网络工程 网络工程
背景情况:
- 5G网络需要在非视线 (NLoS) 环境中提高光谱效率.
- 传统的直角多重访问 (OMA) 在NLoS场景中面临局限性.
- 先进的技术对于提高数据速率和减少干扰至关重要.
研究的目的:
- 为NLoS环境全面分析先进的无线通信技术.
- 评估与其他技术集成的非直角多重访问 (NOMA) 的潜力.
- 在具有挑战性的NLoS条件下提高通信可靠性和光谱效率.
主要方法:
- 分析NLoS中用户合作的合作中继策略.
- 对空间多样性的多输入多输出 (MIMO) 配置的检查.
- 研究智能反射表面 (IRS) 以提高覆盖率和减少干扰.
- 在灵活的通信基础设施中无人机 (UAV) 角色的调查.
- 对与NOMA集成的能源采集 (EH) 策略的审查.
主要成果:
- 合作中继通过用户合作提高了NLoS的可靠性和光谱效率.
- MIMO配置有效地利用空间多样性来应对NLoS的挑战.
- 通过改变信号路径,IRS设置可以增强覆盖范围并减轻干扰.
- 无人机在困难的环境中提供灵活的通信解决方案.
- 与NOMA集成的EH策略确保高效和可靠的能源通信网络.
结论:
- 将NOMA与合作中继,MIMO,IRS,无人机和EH集成,可以显著提高NLoS环境中的光谱效率和连接性.
- 这些综合技术促进了稳定,可靠和环境可持续的数据通信系统.
- 该研究强调了通往更强大和更有效的未来无线网络的途径.
相关概念视频
Field Application of Global Positioning System
41
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
41
Electronic Distance Measuring Instruments
31
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short...
31
Dual Nature of Electromagnetic (EM) Radiation
2.0K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
2.0K
Energy Carried By Electromagnetic Waves
2.9K
Anyone who has used a microwave oven knows there is energy in electromagnetic waves. Sometimes, this energy is obvious, such as in the summer sun's warmth. At other times, it is subtle, such as the unfelt energy of gamma rays, which can destroy living cells. Electromagnetic waves bring energy into a system through their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. However, there is energy in an electromagnetic wave,...
2.9K
Errors in Global Positioning System
41
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
41
Energy and Power Signals
277
In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
277


