在模拟的5G环境中,对多媒体拥堵控制算法进行自我定时速率调整的实验分析和优化方法
Haider Dhia Zubaydi1, Ahmed Samir Jagmagji1,2, Sándor Molnár1
1Department of Telecommunications and Media Informatics, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary.
Sensors (Basel, Switzerland)
|November 25, 2023
概括
这项研究优化了5G网络的多媒体自定时速率适应 (SCReAM) 算法. 引导调整方法显著减少了网络队列延迟,并提高了实时视频流的吞吐量.
科学领域:
- 计算机科学 计算机科学
- 网络化 网络化 网络化
- 电信 电信服务 电信服务 电信服务
背景情况:
- 网络拥堵导致高延迟和数据包切换网络中的数据包丢失.
- 自动计时速率适应多媒体 (SCReAM) 算法解决了实时视频流的拥堵问题,但受到了复杂性和众多可调节的参数的困扰.
- 优化SCReAM对于现代网络中高效的多媒体交付至关重要.
研究的目的:
- 为SCReAM算法提出和评估一个指导参数调方法.
- 评估SCReAM在模拟的5G环境中的性能,重点关注网络队列延迟,平滑的往返时间 (sRTT) 和吞吐量.
- 为特定应用程序优化SCReAM行为提供明确的指南.
主要方法:
- 一个三阶段的方法:初始化,独立实验和混合实验.
- 单独研究SCReAM参数,以了解它们对网络性能指标的影响.
- 在模拟的5G环境中评估SCReAM,并无低延迟低损失可扩展 (L4S) /明确拥堵通知 (ECN) 启用.
主要成果:
- 与原来的SCReAM设计相比,在L4S/ECN被禁用时,网络队列延迟减少了63.36%,吞吐量增加了48.6%.
- 在支持L4S/ECN的模式下,网络队列延迟减少了16.17%,吞吐量增加了93%.
- 通过指导参数调整,显著提高了性能.
结论:
- 建议的指导参数调整方法有效地优化了5G环境中的SCReAM性能.
- 该研究为寻求提高实时视频流质量的研究人员和从业人员提供了宝贵的见解和指导方针.
- 优化的SCReAM配置可以大大减轻拥堵效应,改善用户体验.
相关概念视频
Upsampling
238
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
238
Design Example
331
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
331
Load-frequency control
166
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
166
Reconstruction of Signal using Interpolation
207
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
207


