• Login
    View Item 
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Software-Defined Networking-based Adaptive Resource Allocation in Optical Networks

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    azu_etd_17315_sip1_m.pdf
    Size:
    3.430Mb
    Format:
    PDF
    Download
    Author
    Yang, Mingwei
    Issue Date
    2019
    Keywords
    5G
    Data Centers
    FPGA
    LDPC
    SDN
    Advisor
    Djordjevic, Ivan B.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Programmable optical transmission based on software-defined networking (SDN) is being considered as a promising solution for the fifth-generation (5G) cellular networks, data center networks, and passive optical networks (PONs). In particular, the stringent capacity and latency requirements of the fronthaul segment call for innovations in the design of new architectures and transceivers that can adapt themselves to highly variable application traffic patterns and physical-layer conditions. We propose a software-defined pseudorandom sequence-based synchronization scheme, which enables us to in-band adapt the modulation type and code rate per connection. Based on this scheme, we further propose a cross-layer resource allocation framework for hybrid mobile fronthaul (MFH) networks that can support dynamic processing resource sharing and comprises both coherent detection (CD) and direct detection (DD) transceivers. We develop new modulation schemes to support simultaneous data delivery to both CD and DD terminals. Using theoretical analysis and two separate SDN-enabled downlink and uplink transmission testbeds, we demonstrate the advantages of adaptive transmission in MFH networks as well as the benefits of probabilistically shaped three-level pulse amplitude modulation (PAM-3) and five-point quadrature amplitude modulation (QAM-5) for multicast transmission in hybrid networking scenarios. As a step-forward towards the real-time implementation of proposed concepts, based on a high-speed FPGA, we design and implement a generic adaptive shortened and punctured irregular low-density parity check (LDPC) code emulation system using layered-decoding with iterative scaled min-sum algorithm. We evaluate the hard-decision, soft-decision, and burst-error performance of the irregular LDPC code that is under consideration for ITU’s 50G-PON standard and demonstrate high potential of properly designed irregular LDPC coding for PON, data-center, and 5G+ applications.
    Type
    text
    Electronic Dissertation
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Graduate College
    Electrical & Computer Engineering
    Degree Grantor
    University of Arizona
    Collections
    Dissertations

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.