A service‐aware transport layer framework for SDN‐enabled cellular core networks

Since futuristic cellular core networks are envisioned to accommodate emerging vertical domain applications with diverse QoS requirements, software‐defined networking (SDN) technology has played a vital role in improving the scalability and flexibility of network management. This paper presents the...

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Bibliographic Details
Published in:IET communications 2022-07, Vol.16 (11), p.1279-1289
Main Authors: Xia, Nian, Tsai, Pang‐Wei, Ling, Teck Chaw, Yang, Chu‐Sing
Format: Article
Language:English
Subjects:
Algorithms
Autonomous vehicles
Broadband
Engineering
Heuristic
Mobile computing
Network latency
Optimization
Protocol
Quality of service architectures
Queues
Software-defined networking
Traffic congestion
Traffic control
Traffic flow
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Summary:Since futuristic cellular core networks are envisioned to accommodate emerging vertical domain applications with diverse QoS requirements, software‐defined networking (SDN) technology has played a vital role in improving the scalability and flexibility of network management. This paper presents the design and development of a service‐aware transport layer framework in SDN‐enabled cellular core networks. It aims to study and accommodate three typical traffic types: enhanced mobile broadband (eMBB), ultra‐reliable and low latency communications (URLLC), and massive machine‐type communications (mMTC) in optimal path selection. The proposed framework is able to dynamically allocate network resources to corresponding traffic of above types for satisfying the requirements of each identified flow, using a multi‐level queue management mechanism to alleviate the flow dropping problem when the network becomes congested. For experiment and verification, a testbed platform was built to evaluate the functionalities of developed modules, the performance of the diffserv‐based optimal path selection, and the operation of multi‐level queue management. The experiment results demonstrate that the proposed algorithms could obtain a higher accepting ratio than the other ones in different network conditions.
ISSN:1751-8628
1751-8636
DOI:10.1049/cmu2.12287