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Software-Defined Access Networks
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DOI：10.1109/MCOM.2014.6894466.png)
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Abstract
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Control-plane functions are migrating from dedicated network equipment into software running on commodity hardware. The Software-Defined Access Network (SDAN) concept introduced here extends the benefits of Software-Defined Networking and Network Function Virtualization (NFV) into broadband access. In a SDAN, access-network control and management functions for broadband access are virtualized, to streamline operations, speed services creation, and enhance broadband customer satisfaction, particularly in multi-operator environments. This article examines industry drivers, identifies software-definable control and management functions for broadband access, and presents some specific usage scenarios for the SDAN.
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