OpeNB: A framework for virtualizing base stations in LTE networks

Costanzo, Salvatore; Xenakis, Dionysis; Passas, Nikos; Merakos, Lazaros

doi:10.1109/icc.2014.6883805

Cited by 16 publications

(27 citation statements)

References 7 publications

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“…Another approach for resource sharing was proposed in [52,53], which create virtual base stations from the shared physical base stations of multiple network operators. Zaki et al [53] proposed a sharing solution based on the virtualization of eNodeB in the LTE access network.…”

Section: Virtual Base Stationmentioning

confidence: 99%

“…A key component is called Hypervisor, which is located on top of the physical eNodeB resources and is in charge of allocating these resources to each virtual eNodeB (VeNB) according to the request of different MVNOs. Costanzo et al [52] presented OpeNB, which is also based on the virtualization of eNodeB in the LTE access network. However, the OpeNB architecture is more flexible by leveraging SDN and Openflow technologies.…”

Section: Virtual Base Stationmentioning

confidence: 99%

See 1 more Smart Citation

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

Nguyen

Kim

2015

Wireless Pers Commun

104

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Software-defined networking (SDN) features the decoupling of the control plane and data plane, a programmable network and virtualization, which enables network infrastructure sharing and the ''softwarization'' of the network functions. Recently, many research works have tried to redesign the traditional mobile network using two of these concepts in order to deal with the challenges faced by mobile operators, such as the rapid growth of mobile traffic and new services. In this paper, we first provide an overview of SDN, network virtualization, and network function virtualization, and then describe the current LTE mobile network architecture as well as its challenges and issues. By analyzing and categorizing a wide range of the latest research works on SDN and virtualization in LTE mobile networks, we present a general architecture for SDN and virtualization in mobile networks (called SDVMN) and then propose a hierarchical taxonomy based on the different levels of the carrier network. We also present an in-depth analysis about changes related to protocol operation and architecture when adopting SDN and virtualization in mobile networks. In addition, we list specific use cases and applications that benefit from SDVMN. Last but not least, we discuss the open issues and future research directions of SDVMN.

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Section: Virtual Base Stationmentioning

confidence: 99%

Section: Virtual Base Stationmentioning

confidence: 99%

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

Nguyen

Kim

2015

Wireless Pers Commun

104

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“…An SDN-based framework is proposed in [9], to enable efficient on-demand sharing of base stations that belong to different operators. The key idea is to allow the cellular users to attach to the nearest base station.…”

Section: Related Workmentioning

confidence: 99%

“…The local controller manages the processes inside a 127 single network, while the global controller handles the events throughout the HetN et and coordinates the RAN s through the backhaul. Different from [9]- [11], in this paper we focus on the resource sharing problem in a multi-operator integrated FDD macrocell and TDD picocell LTE-A system, employing network programmability through re-configuration of the TDD frames at the pico 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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“…However, there are many challenges related to the implementation of SERVICE. Although existing literatures are available for mobile SDN [8] [9], to the best of our knowledge, there have been few studies reported to address the communications challenges from vehicular communication point of view. The scope of this article is thus to present the preliminary study on the cloud-based heterogeneous vehicular network.…”

mentioning

confidence: 99%

Soft-defined heterogeneous vehicular network: architecture and challenges

et al. 2016

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Heterogeneous Vehicular NETworks (HetVNETs) can meet various quality-of-service (QoS) requirements for intelligent transport system (ITS) services by integrating different access networks coherently. However, the current network architecture for HetVNET cannot efficiently deal with the increasing demands of rapidly changing network landscape. Thanks to the centralization and flexibility of the cloud radio access network (Cloud-RAN), soft-defined networking (SDN) can conveniently be applied to support the dynamic nature of future HetVNET functions and various applications while reducing the operating costs. In this paper, we first propose the multi-layer Cloud RAN architecture for implementing the new network, where the multi-domain resources can be exploited as needed for vehicle users. Then, the high-level design of soft-defined HetVNET is presented in detail. Finally, we briefly discuss key challenges and solutions for this new network, corroborating its feasibility in the emerging fifth-generation (5G) era.

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OpeNB: A framework for virtualizing base stations in LTE networks

Cited by 16 publications

References 7 publications

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

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

Soft-defined heterogeneous vehicular network: architecture and challenges

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