Context-Based Dynamic Meshed Backhaul Construction for 5G Heterogeneous Networks

Tran, Gia Khanh; Santos, Reginaldo Bezerra dos; Ogawa, H.; Nakamura, Makoto; Sakaguchi, Kei; Kassler, Andreas

doi:10.20944/preprints201809.0056.v1

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…Software-Defined Wireless Networks (SDWNs) [47] and Software-Defined Mobile Networks (SDMNs) [48]. One of the prospective applications is context-based dynamic meshed backhaul construction for 5G heterogeneous networks [49]. In order to compensate for the drawbacks of VANETs, research pioneers start throwing their eyes at the adaptation of SDN for vehicular networks, which is so-called Software-Defined Vehicular Networks (SDVNs).…”

Section: B Sdn Approach For Vanetsmentioning

confidence: 99%

Towards Safe Automated Driving: Design of Software-Defined Dynamic MmWave V2X Networks and PoC Implementation

Tao

Fukatsu

et al. 2021

IEEE Open J. Veh. Technol.

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Section: B Sdn Approach For Vanetsmentioning

confidence: 99%

Towards Safe Automated Driving: Design of Software-Defined Dynamic MmWave V2X Networks and PoC Implementation

Tao

Fukatsu

et al. 2021

IEEE Open J. Veh. Technol.

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A Multi-Layer Multi-Timescale Network Utility Maximization Framework for the SDN-Based LayBack Architecture Enabling Wireless Backhaul Resource Sharing

et al. 2019

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With the emergence of small cell networks and fifth-generation (5G) wireless networks, the backhaul becomes increasingly complex. This study addresses the problem of how a central SDN orchestrator can flexibly share the total backhaul capacity of the various wireless operators among their gateways and radio nodes (e.g., LTE enhanced Node Bs or Wi-Fi access points). In order to address this backhaul resource allocation problem, we introduce a novel backhaul optimization methodology in the context of the recently proposed LayBack SDN backhaul architecture. In particular, we explore the decomposition of the central optimization problem into a layered dual decomposition model that matches the architectural layers of the LayBack backhaul architecture. In order to promote scalability and responsiveness, we employ different timescales, i.e., fast timescales at the radio nodes and slower timescales in the higher LayBack layers that are closer to the central SDN orchestrator. We numerically evaluate the scalable layered optimization for a specific case of the LayBack backhaul architecture with four layers, namely a radio node (eNB) layer, a gateway layer, an operator layer, and central coordination in an SDN orchestrator layer. The coordinated sharing of the total backhaul capacity among multiple operators lowers the queue lengths compared to the conventional backhaul without sharing among operators.

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Backhaul-Aware Dimensioning and Planning of Millimeter-Wave Small Cell Networks

et al. 2020

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The massive deployment of Small Cells (SCs) is increasingly being adopted by mobile operators to face the exponentially growing traffic demand. Using the millimeter-wave (mmWave) band in the access and backhaul networks will be key to provide the capacity that meets such demand. However, dimensioning and planning have become complex tasks, because the capacity requirements for mmWave links can significantly vary with the SC location. In this work, we address the problem of SC planning considering the backhaul constraints, assuming that a line-of-sight (LOS) between the nodes is required to reliably support the traffic demand. Such a LOS condition reduces the set of potential site locations. Simulation results show that, under certain conditions, the proposed algorithm is effective in finding solutions and strongly efficient in computational cost when compared to exhaustive search approaches.

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Context-Based Dynamic Meshed Backhaul Construction for 5G Heterogeneous Networks

Cited by 5 publications

References 30 publications

Towards Safe Automated Driving: Design of Software-Defined Dynamic MmWave V2X Networks and PoC Implementation

Towards Safe Automated Driving: Design of Software-Defined Dynamic MmWave V2X Networks and PoC Implementation

A Multi-Layer Multi-Timescale Network Utility Maximization Framework for the SDN-Based LayBack Architecture Enabling Wireless Backhaul Resource Sharing

Backhaul-Aware Dimensioning and Planning of Millimeter-Wave Small Cell Networks

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