Aspirations, challenges, and open issues for software-based 5G networks in extremely dense and heterogeneous scenarios
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Data
2015
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Resumo
An upsurge of heterogeneous wireless devices and wide-ranging applications on extremely dense urban scenarios
has led to challenging conditions that cannot be easily handled by 4G systems, such as the inefficient use of the
frequency spectrum and the high energy consumption. In order to address those challenges, the 5G system design
demands new architectures to cope with specific requirements, such as scalability, resilience, and energy efficiency.
These requirements play a fundamental role in extremely dense scenarios. In addition, when jointly addressed, they
have distinct priorities depending mainly on the specific user application demands. In this context, this article
presents a management architecture for 5G system, called Wireless Software-basEd architecture for Extremely Dense
networks (WiSEED). It is grounded on a software-based perspective of management and jointly manages three key
operational services, as follows: routing, mobility, and spectrum usage. Such perspective of management is possible
due to programmable network technologies, i.e., network function virtualization and software-defined networking.
The architecture mainly intends to provide a better trade-off between the 5G requirements themselves and a high
quality ubiquitous and seamless services, as well as efficient mobile broadband Internet for end users. Trace-driven
simulation results from a case study show improvements when the management architecture is employed over
conflicting requirements.
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5G Networks, Software-defined networking, Extremely dense, Routing, Mobility, Spectrum management, Network function virtualization, Heterogeneous scenario
Citação
BORGES, Vinicius C. M.; CARDOSO, Kleber Vieira; CERQUEIRA, Eduardo; NOGUEIRA, Michele; SANTOS, Aldri. Aspirations, challenges, and open issues for software-based 5G networks in extremely dense and heterogeneous scenarios. EURASIP Journal on Wireless Communications and Networking, New York, v. 2015, n. 164, p. 1-13, 2015.