A Review of DSP-Based Enabling Technologies for Cloud Access Networks
Optical access networks, metro networks and mobile data networks are facing rapidly evolving demands, not only is it essential to satisfy the unyielding need for increased user bandwidths, but future networks must also support the growing wide variation in traffic dynamics and characteristics, due t...
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doaj-dc997c5f7927433bbf1cbb9b91acbcae2020-11-24T22:37:33ZengMDPI AGFuture Internet1999-59032018-11-01101110910.3390/fi10110109fi10110109A Review of DSP-Based Enabling Technologies for Cloud Access NetworksRoger Giddings0Xiao Duan1Ehab Al-Rawachy2Mingzhi Mao3School of Electronic Engineering, Bangor University, Dean Street, Bangor LL57 1UT, UKSchool of Electronic Engineering, Bangor University, Dean Street, Bangor LL57 1UT, UKSchool of Electronic Engineering, Bangor University, Dean Street, Bangor LL57 1UT, UKSchool of Electronic Engineering, Bangor University, Dean Street, Bangor LL57 1UT, UKOptical access networks, metro networks and mobile data networks are facing rapidly evolving demands, not only is it essential to satisfy the unyielding need for increased user bandwidths, but future networks must also support the growing wide variation in traffic dynamics and characteristics, due to various emerging technologies, such as cloud-based services, the Internet-of-Things (IoT) and 5G mobile systems, and due to growing trends, such as the proliferation of mobile devices and the rapidly increasing popularity of video-on-demand services. To be cost-effective and commercially sustainable, future optical networks must offer features, such as, dynamic reconfigurability, highly efficient use of network resources, elastic bandwidth provisioning with fine granularity, network sliceabilty and software defined networking (SDN). To meet these requirements Cloud Access Networks (CANs) are proposed which require a number of flexible, adaptive and reconfigurable networking elements. By exploiting digital signal processing (DSP) we have proposed a digital orthogonal filter-based multiplexing technique to implement CANs with multiplexed, independent optical channels at the wavelength, sub-wavelength, and orthogonal sub-band levels. This paper reviews the overall CAN concept, the operating principles of the various CAN network elements and presents an overview of the research work we have undertaken in order to validate the feasibility of the proposed technologies which includes real-time DSP-based demonstrations.https://www.mdpi.com/1999-5903/10/11/109fiber optic communicationsdigital signal processingcloud access networksreconfigurable optical transceiverssoft-ROADMsspectral converters |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Roger Giddings Xiao Duan Ehab Al-Rawachy Mingzhi Mao |
spellingShingle |
Roger Giddings Xiao Duan Ehab Al-Rawachy Mingzhi Mao A Review of DSP-Based Enabling Technologies for Cloud Access Networks Future Internet fiber optic communications digital signal processing cloud access networks reconfigurable optical transceivers soft-ROADMs spectral converters |
author_facet |
Roger Giddings Xiao Duan Ehab Al-Rawachy Mingzhi Mao |
author_sort |
Roger Giddings |
title |
A Review of DSP-Based Enabling Technologies for Cloud Access Networks |
title_short |
A Review of DSP-Based Enabling Technologies for Cloud Access Networks |
title_full |
A Review of DSP-Based Enabling Technologies for Cloud Access Networks |
title_fullStr |
A Review of DSP-Based Enabling Technologies for Cloud Access Networks |
title_full_unstemmed |
A Review of DSP-Based Enabling Technologies for Cloud Access Networks |
title_sort |
review of dsp-based enabling technologies for cloud access networks |
publisher |
MDPI AG |
series |
Future Internet |
issn |
1999-5903 |
publishDate |
2018-11-01 |
description |
Optical access networks, metro networks and mobile data networks are facing rapidly evolving demands, not only is it essential to satisfy the unyielding need for increased user bandwidths, but future networks must also support the growing wide variation in traffic dynamics and characteristics, due to various emerging technologies, such as cloud-based services, the Internet-of-Things (IoT) and 5G mobile systems, and due to growing trends, such as the proliferation of mobile devices and the rapidly increasing popularity of video-on-demand services. To be cost-effective and commercially sustainable, future optical networks must offer features, such as, dynamic reconfigurability, highly efficient use of network resources, elastic bandwidth provisioning with fine granularity, network sliceabilty and software defined networking (SDN). To meet these requirements Cloud Access Networks (CANs) are proposed which require a number of flexible, adaptive and reconfigurable networking elements. By exploiting digital signal processing (DSP) we have proposed a digital orthogonal filter-based multiplexing technique to implement CANs with multiplexed, independent optical channels at the wavelength, sub-wavelength, and orthogonal sub-band levels. This paper reviews the overall CAN concept, the operating principles of the various CAN network elements and presents an overview of the research work we have undertaken in order to validate the feasibility of the proposed technologies which includes real-time DSP-based demonstrations. |
topic |
fiber optic communications digital signal processing cloud access networks reconfigurable optical transceivers soft-ROADMs spectral converters |
url |
https://www.mdpi.com/1999-5903/10/11/109 |
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