Improving efficiency of network resources in elastic optical transport network by using in-network cache functions

IF 1.9 4区计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

Optical Switching and Networking Pub Date : 2021-11-01 DOI:10.1016/j.osn.2021.100629

Takashi Miyamura , Akira Misawa

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引用次数: 6

Abstract

We developed a network architecture called information-centric elastic optical transport network (i-CEON) that enables efficient content delivery. Increasing the volume of video traffic consumes network resources, so it is necessary to establish optical transport network architectures suitable for content delivery. For this purpose, we extend existing information-centric networking to be applicable to elastic optical networks. The main focus of this paper is presenting the method in i-CEON of optimizing optical-path routing by effectively using an in-network cache function to efficiently accommodate content traffic. This reduces redundant use of network resources. We formulate the joint optimization problem of elastic optical-path routing and content-replication placement as a mixed integer linear programming problem and also develop a heuristic algorithm. We conducted intensive numerical experiments to demonstrate the effectiveness of our method and confirmed that it reduced network cost by 21% and server load by 32%.

查看原文本刊更多论文

利用网内缓存功能提高弹性光传输网络的网络资源利用率

我们开发了一种称为信息中心弹性光传输网络(i-CEON)的网络架构，可以实现高效的内容传输。视频流量的增加会消耗网络资源，因此有必要建立适合内容分发的光传输网络体系结构。为此，我们对现有的以信息为中心的网络进行了扩展，使其适用于弹性光网络。本文的主要重点是介绍i-CEON中通过有效地利用网络内缓存功能来优化光路路由的方法，以有效地容纳内容流量。这减少了网络资源的冗余使用。我们将弹性光路路由和内容复制放置的联合优化问题表述为一个混合整数线性规划问题，并提出了一种启发式算法。我们进行了大量的数值实验来证明我们的方法的有效性，并证实它将网络成本降低了21%，服务器负载降低了32%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Switching and Networking COMPUTER SCIENCE, INFORMATION SYSTEMS-OPTICS

CiteScore

5.20

自引率

18.20%

发文量

审稿时长

77 days

期刊介绍： Optical Switching and Networking (OSN) is an archival journal aiming to provide complete coverage of all topics of interest to those involved in the optical and high-speed opto-electronic networking areas. The editorial board is committed to providing detailed, constructive feedback to submitted papers, as well as a fast turn-around time. Optical Switching and Networking considers high-quality, original, and unpublished contributions addressing all aspects of optical and opto-electronic networks. Specific areas of interest include, but are not limited to: • Optical and Opto-Electronic Backbone, Metropolitan and Local Area Networks • Optical Data Center Networks • Elastic optical networks • Green Optical Networks • Software Defined Optical Networks • Novel Multi-layer Architectures and Protocols (Ethernet, Internet, Physical Layer) • Optical Networks for Interet of Things (IOT) • Home Networks, In-Vehicle Networks, and Other Short-Reach Networks • Optical Access Networks • Optical Data Center Interconnection Systems • Optical OFDM and coherent optical network systems • Free Space Optics (FSO) networks • Hybrid Fiber - Wireless Networks • Optical Satellite Networks • Visible Light Communication Networks • Optical Storage Networks • Optical Network Security • Optical Network Resiliance and Reliability • Control Plane Issues and Signaling Protocols • Optical Quality of Service (OQoS) and Impairment Monitoring • Optical Layer Anycast, Broadcast and Multicast • Optical Network Applications, Testbeds and Experimental Networks • Optical Network for Science and High Performance Computing Networks