Software-Defined Wireless Transport Networks for Flexible Mobile Backhaul in 5G Systems

Bercovich, Dudu; Contreras, Luis M.; Haddad, Yoram; Adam, Ariel; Bernardos, Carlos J.

doi:10.1007/s11036-015-0635-y

Cited by 24 publications

(8 citation statements)

References 17 publications

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“…The main advantage of C-RAN is the possibility of implementing coordination features among BBUs to mitigate radio interference, especially in small-cell deployments where user equipment (UE) is often within reach of a number of BBUs [15]. The control plane centralization promoted by the SDN paradigm will facilitate not only the required architectural agility needed in C-RAN solutions, but also the provision of fast re-configurability and high capacity on-demand for certain locations [16]. In an extreme implementation, C-RANs could evolve toward cloud based infrastructures (Cloud RANs) and Virtualized RANs (V-RANs), where BBUs can be activated in general purpose servers following the concept of NFV and network slicing [14].…”

Section: G Radio Access Networkmentioning

confidence: 99%

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

Muciaccia

Passaro

2017

Photonics

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Abstract:In recent years, architectures, devices, and components in telecommunication networks have been challenged by evolutionary and revolutionary factors which are drastically changing the traffic features. Most of these changes imply the need for major re-configurability and programmability not only in data-centers and core networks, but also in the metro-access segment. In a wide variety of contexts, this necessity has been addressed by the proposed introduction of the innovative paradigm of software-defined networks (SDNs). Several solutions inspired by the SDN model have been recently proposed also for metro and access networks, where the adoption of a new generation of software-defined reconfigurable integrated photonic devices is highly desirable. In this paper, we review the possible future application scenarios for software-defined metro and access networks and software-defined photonics (SDP), on the base of analytics, statistics, and surveys. This work describes the reasons underpinning the presented radical change of paradigm and summarizes the most significant solutions proposed in literature, with a specific emphasis to physical-layer reconfigurable networks and a focus on both architectures and devices.

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Section: G Radio Access Networkmentioning

confidence: 99%

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

Muciaccia

Passaro

2017

Photonics

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“…With role based controls, only properly privileged administrators can make modifications to policies. On events of anomalous security threat, SDM automation reacts at a wire speed to send instant alerts and perform quarantining operations as predefined in the control policy [14]. Unlike the traditional monitoring systems that heavily depends on manual detection, action, and administration during such anomalies.…”

Section: Expected Advantages Of Sdmmentioning

confidence: 99%

Software Defined Monitoring (SDM) for 5G mobile backhaul networks

Liyanage

Okwuibe

Ahmed

et al. 2017

2017 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN)

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Defined Networking (SDN) and Network Function Virtualization (NFV) concepts [1], [2]. These concepts can also be used to overcome the limitations of the legacy monitoring systems.In this paper, we highlight the limitations of legacy monitoring systems in present mobile backhual networks. Then, we propose a novel Software Defined Monitoring (SDM) architecture to overcome these limitations in 5G networks. We propose necessary modifications to Software Defined Mobile Network (SDMN) architecture to implement the SDM framework. We also present specific opportunities, vulnerabilities as well as challenges related to SDM. Finally, we implement the proposed SDM architecture on a testbed to verify its feasibility.The rest of this paper is organized as follows, Section II discusses the limitations of legacy monitoring techniques and how SDN/NFV features can be used to solve these limitations. Section III presents the proposed SDM architecture and its key components. The experiment results and the expected advantages of SDM are discussed in Sections IV and V respectively. Section VI describes different challenges of SDM while Section VII concludes the article. II. LIMITATIONS OF CURRENT MONITORING TECHNIQUESThe legacy monitoring systems have a number of limitations, such as high complexity which makes them difficult to deploy and maintain, high provisioning and operational costs due to the distributed infrastructure. The currently used vendor-specific monitoring systems come with hardwired operational logic in their firmwares, this means that changes in such legacy monitoring system either require complex configurations or changes in the firmware. As a result, these systems lack flexibility and cannot cope with the dynamic changes in network conditions [3], [4].Traditional networks comprise many autonomous chunks of networked systems where a change in some parameters can induce undesirable effects on the overall network state. Moreover, there is no global visibility of the network state in current networks. This leads to localized decision-making at multiple points in the network. Hence, synchronizing a huge number of monitoring decisions is a daunting task for both network management and monitoring systems. Autonomous perimeter-based security policies further complicate deploying Abstract-Software Defined Network (SDN) is an advanced approach to designing dynamic, manageable, cost-effective, and adaptable network architectures. SDN will play a key role as an enabler for 5G and future networks. Transferring network monitoring functions to a software entity working in conjunction with configurable hardware accelerators through a scheme called Software Defined Monitoring (SDM) is one promising way to attain the dynamism necessary for the monitoring of the next generation-networks. In this paper, we propose a novel SDM architecture for future mobile backhual networks. As an SDN solution, the proposed architecture provides more granular and dynamic network management functions through its programmable interface, centralized con...

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“…While currently Wi-Fi APs do not normally communicate with each other by means of their wire line connections, the raising of Software Defined Network paradigm, this collaboration could now be more realistic [11], [12]. For instance [13] a realistic use case where SDN can be leveraged at the Base Station level to improve collaboration and interference reduction. Each AP can update its status to a controller via South-Bound Interface (SBI).…”

Section: A New Game For Shared Spectrum Usementioning

confidence: 99%

A New Game for Future Wi-Fi Spectrum Sharing

Cuzanauskas¹,

Haddad²

2017

ElAEE

Self Cite

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This article offers a vision for moving on from the paradigm of "constrained politeness" that has long governed Wi-Fi access to a shared spectrum-as embodied by the CSMA/CA mechanism and restricted EIRP limits. Instead, it is proposed to embrace a paradigm of a "cooperative game" where quasi-cognitive devices establish by themselves a mutually collaborative spectrum coexistence community, based on a unified set of simple rules, which operates on the basis of balancing individual transmits powers as a function of overall noise environment. It is shown that the proposed new mode of spectrum access, results in a significantly increased overall spectrum use efficiency, defined in terms of aggregate throughput carried in given bandwidth by a populace of devices over unit area. Most importantly, the new spectrum access would be still implicitly suitable for the Wi-Fi ethos of self-management and uncoordinated deployment. The proposed method, supported by both theoretical and practical simulations, represents one of the first practical implementations that prove feasibility and usefulness of Game Theory to the practice of wireless communications.

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Software-Defined Wireless Transport Networks for Flexible Mobile Backhaul in 5G Systems

Cited by 24 publications

References 17 publications

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

Software Defined Monitoring (SDM) for 5G mobile backhaul networks

A New Game for Future Wi-Fi Spectrum Sharing

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