负载自适应多阈值调度可同时改善C-RAN的传输时间和等待时间性能

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-11-28 DOI:10.1016/j.yofte.2024.104065

Prasanna Dubey , Raksha Upadhyay , Uma Rathore Bhatt , Vijay Bhat

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引用次数: 0

摘要

5G网络的低延迟要求是支持延迟敏感应用的基本需求之一。集中式无线接入网（C-RAN）有线中程上行调度机制对网络的传输速度和时延性能有重要影响。传统调度算法的性能不足，需要改进以达到这些要求。为了同时减少传输时间和等待时间参数，提出了基于C-RAN架构的单阈值负载自适应调度算法（LAS-ST）和多阈值负载自适应调度算法（LAS-MT）。将所提算法与两种传统调度算法多调度域（MSD）和多调度域（amp）进行了比较。单调度域（SSD），并将其应用于C-RAN的前传和中传，对其进行综合分析。MSD和SSD在以太网无源光网络（EPON）体系结构中得到了广泛的应用。结果表明，与现有调度算法相比，本文提出的多阈值调度算法在传输时间和等待时间方面具有较好的适应性，能够更好地满足研究目标。此外，还观察了几个传输周期（tc）的资源利用率和资源可用性。分析了数据负载变化和可用资源数量变化对传输时间和等待时间的影响。

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Load adaptive multi-threshold scheduling to concurrently improvise transmission time and wait time performance of C-RAN

Low-latency requirements of 5G networks are one of the fundamental needs to support delay-sensitive applications. Uplink scheduling mechanism at wired midhaul of Centralized Radio Access Network (C-RAN) architecture significantly affects the transmission speed and delay performance of the network. Inadequate performance of conventional scheduling algorithms necessitates improvements to attain these requirements. In this paper, load adaptive scheduling with single threshold (LAS-ST) and load adaptive scheduling with multi-threshold (LAS-MT) algorithms on C-RAN architecture are proposed to reduce transmission time and wait time parameters concurrently. The proposed algorithms have been compared with two conventional scheduling algorithms, multi-scheduling domain (MSD) & single scheduling domain (SSD) and applied at fronthaul and midhaul of C-RAN for its comprehensive analysis. MSD and SSD are widely used in Ethernet Passive Optical Network (EPON) architectures. The results confirm that the proposed multi-threshold scheduling algorithm performs best in meeting the objectives of the study compared to the existing scheduling algorithms in terms of transmission time and wait time by adapting to conditions. Further, resource utilization and resource availability are observed for several transmission cycles (TCs). In addition, data load variation and variation in number of available resources is analysed and its effect on transmission time and wait time is studied.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.