使用有限反的ACCPM进行增强的MIMO CSI估计
Ahmed Al-Asadi1, Ibtesam R K Al-Saedi1,2, Saddam K Alwane1
1Communication Engineering Department, University of Technology, Baghdad P.O. Box 19006, Iraq.
Sensors (Basel, Switzerland)
|September 28, 2023
概括
本研究介绍了在多输入和多输出 (MIMO) 系统中获取通道状态信息 (CSI) 的改进方法,在学习过程中减少功耗,以实现更好的无线通信. 该方法在各种场景中有效地学习下行链接CSI,优于现有方法.
科学领域:
- 无线通信无线通信
- 信号处理 信号处理
背景情况:
- 多个输入和多个输出 (MIMO) 系统通过空间复杂化增强无线通信吞吐量.
- 在发射器上准确的通道状态信息 (CSI) 对于最佳的MIMO光束成形至关重要.
- 现有的CSI获取方法可能是不理想的或耗电的.
研究的目的:
- 提出和评估一种新的方法来学习MIMO系统中的下链CSI.
- 在CSI学习阶段减少电力消耗.
- 在单用户和多用户场景中证明拟议方法的有效性.
主要方法:
- 采用分析中心切割平面方法 (ACCPM) 进行CSI采集.
- 利用估计的CSI的零空间束成形向量来最大限度地降低学习过程中的功耗.
- 在分散和Winner II通道模型上测试该方法.
主要成果:
- 拟议的方法证明了学习下行链接CSI的趋同.
- 随着学习的CSI接近最佳性,电力使用量显著减少.
- 该方法在模拟结果方面优于以前的方法.
- 在不同道模型中验证有效性.
结论:
- 这种基于ACCPM的方法有效地学习了MIMO系统中的下行链路CSI.
- 节能功能使该方法对实际的无线网络非常有效.
- 拟议的技术为现有的CSI获取方法提供了更优质的替代方案.
相关概念视频
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation
556
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
On...
556
Effects of feedback
588
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
588


