Base station virtualization for OFDM air interfaces with strict isolation

Kieß, Wolfgang; Weitkemper, Petra; Khan, Ashiq

doi:10.1109/iccw.2013.6649334

Cited by 10 publications

(12 citation statements)

References 12 publications

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“…Among others, the proposed mechanisms are shown to balance the traffic load among the eNBs involved in the sharing process. The authors in [7] propose a multi-tenant solution that enables resource isolation and coexistence of independent policies among different eNBs' instances. To achieve this, they propose a two-layer resource-scheduler composed of a global and a local resource scheduler that permits to implement different scheduling policies to different eNBs.…”

Section: Related Workmentioning

confidence: 99%

An SDN-based framework for elastic resource sharing in integrated FDD/TDD LTE-A HetNets

Shrivastava

Costanzo

Samdanis³

et al. 2014

2014 IEEE 3rd International Conference on Cloud Networking (CloudNet)

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Spectrum and infrastructure sharing among multiple mobile network operators have recently drawn significant attention from the industry and the academia sectors. Recent advances in the area of Software Defined Networking (SDN) launch the design of innovative SDN-based solutions for resource sharing in multi-tier networks of macrocell and small sized base stations, a.k.a. HetNet. In this paper, we present a novel SDN-based framework that enables efficient and elastic spectrum utilization among multiple operators in 3GPP L TE-A HetNet scenario. Assuming a multi-operator environment of Frequency Division Duplex (FDD) macrocells complemented by multi-tenant Time Division Duplex (TDD) pico cells, we present a SDN-based architecture that allows efficient resource sharing among the TDD and FDD systems in a dynamic way. A TDD frame re-configuration mechanism is also employed, to optimize the ratio of uplink and downlink slots in the TDD frame of picocells. System-level simulation results demonstrate that the combination of these two functional enhancements in the L TE-A HetNet, significantly reduces the application layer delay for both the FDD macrocell and TDD picocell systems, leading to highly efficient and dynamic spectrum sharing among multiple network operators.

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Section: Related Workmentioning

confidence: 99%

An SDN-based framework for elastic resource sharing in integrated FDD/TDD LTE-A HetNets

Shrivastava

Costanzo

Samdanis³

et al. 2014

2014 IEEE 3rd International Conference on Cloud Networking (CloudNet)

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“…The system architecture of V-CRAN has been thoroughly explored in [103], [151], [153], [154], [155]- [158]. Reference [103] surveys virtualization technology in next generation of wireless networks considering its recent advancement in the SDN and C-RAN.…”

Section: ) System Architecturementioning

confidence: 99%

A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System

et al. 2019

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The fifth generation (5G) of mobile communication system aims to deliver a ubiquitous mobile service with enhanced quality of service (QoS). It is also expected to enable new use-cases for various vertical industrial applications-such as automobiles, public transportation, medical care, energy, public safety, agriculture, entertainment, manufacturing, and so on. Rapid increases are predicted to occur in user density, traffic volume, and data rate. This calls for novel solutions to the requirements of both mobile users and vertical industries in the next decade. Among various available options, one that appears attractive is to redesign the network architecture-more specifically, to reconstruct the radio access network (RAN). In this paper, we present an inclusive and comprehensive survey on various RAN architectures toward 5G, namely cloud-RAN, heterogeneous cloud-RAN, virtualized cloud-RAN, and fog-RAN. We compare them from various perspectives, such as energy consumption, operations expenditure, resource allocation, spectrum efficiency, system architecture, and network performance. Moreover, we review the key enabling technologies for 5G systems, such as multi-access edge computing, network function virtualization, softwaredefined networking, and network slicing; and some crucial radio access technologies (RATs), such as millimeter wave, massive multi-input multi-output, device-to-device communication, and massive machinetype communication. Last but not least, we discuss the major research challenges in 5G RAN and 5G RATs and identify several possible directions of future research.

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“…The concept of active sharing brings further disturbance of the traditional business model: instead of single mobile network operator and owner, the networks becomes open and mobile network operators contribute to an overall shared network ( [17], [18], [19]). Fig.…”

Section: Architecture For Active Ran Sharing Amongmentioning

confidence: 99%

Radio access sharing strategies for multiple operators in cellular networks

Avramova

Iversen

2015

2015 IEEE International Conference on Communication Workshop (ICCW)

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Mobile operators are moving towards sharing network capacity in order to reduce capital and operational expenditures, while meeting the increasing demand for mobile broadband data services. Radio access network sharing is a promising technique that leads to reduced number of physical base station deployments (required for coverage enhancement), increased base station utilization, and reduced overall power consumption. Today, network sharing in the radio access part is passive and limited to cell sites. With the introduction of Cloud Radio Access Network and Software Defined Networking adoption to the radio access network, the possibility for sharing baseband processing and radio spectrum becomes an important aspect of network sharing. This paper investigates strategies for active sharing of radio access among multiple operators, and analyses the individual benefits depending on the sharing degree. The model used to assess the sharing strategies is based on multidimensional loss systems, and blocking probability is considered as performance metrics.

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Base station virtualization for OFDM air interfaces with strict isolation

Cited by 10 publications

References 12 publications

An SDN-based framework for elastic resource sharing in integrated FDD/TDD LTE-A HetNets

An SDN-based framework for elastic resource sharing in integrated FDD/TDD LTE-A HetNets

A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System

Radio access sharing strategies for multiple operators in cellular networks

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