SDN/NFV-Empowered Future IoV With Enhanced Communication, Computing, and Caching

Zhuang, Weihua; Ye, Qiang; Lyu, Feng; Cheng, Nan; Ren, Ju

doi:10.1109/jproc.2019.2951169

Cited by 219 publications

(62 citation statements)

References 77 publications

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“…Moreover, the BER curves of these two cases with different K -factors are also shown in Fig. 7, where K ∼ ln (15,8) and K ∼ ln (8,4) are the representative parameters of suburban and residential environments [43], respectively. It is easy to get the conclusion that the larger the LoS component, the better the channel and thus the BER performance.…”

Section: Numerical Simulations and Resultsmentioning

confidence: 99%

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OAM-Based Concentric Spatial Division Multiplexing for Cellular IoT Terminals

et al. 2020

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Internet of Things (IoT) is an emerging network that aims to connect massive devices for exchanging information with each other. There have been various IoT access techniques, such as RFID, Blue Tooth, WiFi, LoRa and cellular IoT, in which cellular IoT has advantages in wide coverage and the economical reuse of exsiting cellular infrastructure. However, cellular base station (BS) consumes most of the energy in wireless communication networks. Therefore, improving the energy efficiency (EE) of the BS is of great importance to make cellular IoT green. In this paper, we propose a novel orbital angular momentum (OAM)-based concentric spatial division multiplexing (CSDM) downlink transmission scheme for cellular IoT terminals. Specifically, the hybrid radio frequency (RF) and baseband CSDM scheme exploits analog OAM beamforming to generate concentric annular beams for covering cell-center, cell-mediate and cell-edge groups of users, and digital space-frequency vector perturbation (SFVP) precoding and orthogonal frequency division multiple access (OFDMA) to mitigate inter-and intra-group interferences. Mathematical analysis and numerical simulations validate that the IoT BS with the proposed CSDM-SFVP scheme has better bit error rate (BER) and EE performance than traditional massive multiple-input multiple-output (MIMO) BS with full-baseband zero-forcing (FBZF) precoding in a IoT cell. INDEX TERMS Internet of things (IoT), orbital angular momentum (OAM), uniform circular array (UCA), massive machine-type communications (mMTC), concentric spatial division multiplexing (CSDM).

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Section: Numerical Simulations and Resultsmentioning

confidence: 99%

“…Smart sensing devices in autonomous cars, surveillance cameras, smart meters, health monitors, etc. will interact with other devices without human interventions in the new era of internet of things (IoT) [2]- [4]. URLLC…”

Section: Introductionmentioning

confidence: 99%

OAM-Based Concentric Spatial Division Multiplexing for Cellular IoT Terminals

et al. 2020

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“…Therefore, SDN facilitates the pre-defining of slice blueprints as well as the on-demand creation of slice instances based on the corresponding service characteristics and requirements. NFV implements network functions, e.g., firewall, load balancing, address translation, etc., as software instances, known as virtual network functions (VNFs), running on virtual machines on top of general servers (referred to as NFV nodes) without requiring specialized hardware [21], [22]. Thus, a network service in NFV can be considered as a component of a network slice, while a network slice contains one or more VNFs [23].…”

Section: B Network-slicing Based Architecturementioning

confidence: 99%

AI-Assisted Network-Slicing Based Next-Generation Wireless Networks

Shen

Gao

et al. 2020

IEEE Open J. Veh. Technol.

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“…In [23], authors use Software-Defined Networking (SDN) techniques to manage a heterogeneous vehicular network. The work in [24] proposes a model for a future infrastructure of Internetof-vehicles using both SDN and NFV technologies. In [25], authors use SDN techniques to manage a flying ad-hoc network built by Unmanned Aerial Vehicles (UAVs).…”

Section: B Orchestration Of Nfv Services Over Constrained Devicesmentioning

confidence: 99%

A Multi-Site NFV Testbed for Experimentation With SUAV-Based 5G Vertical Services

et al. 2020

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With the advent of 5G technologies, vertical markets have been placed at the forefront, as fundamental drivers and adopters of technical developments and new business models. Small Unmanned Aerial Vehicles (SUAVs) are gaining traction in multiple vertical sectors, as key assets to generate, process, and distribute relevant information for the provision of value-added services. However, the enormous potential of SUAVs to support a flexible, rapid, and cost-effective deployment of vertical applications is still to be exploited. In this paper, we leverage our prior work on Network Functions Virtualization (NFV) and SUAVs to design and build a multi-site experimentation testbed based on open-source technologies. The goal of this testbed is to explore synergies among NFV, SUAVs, and vertical services, following a practical approach primarily governed by experimentation. To verify our testbed design, we realized a reference use case where a number of SUAVs, cloud infrastructures, and communication protocols are used to provide a multi-site vertical service. Our experimentation results suggest the potential of NFV and SUAVs to flexibly support vertical services. The lessons learned have served to identify missing elements in our NFV platform, as well as challenging aspects for potential improvement. These include the development of specific mechanisms to limit processing load and delays of service deployment operations.

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SDN/NFV-Empowered Future IoV With Enhanced Communication, Computing, and Caching

Cited by 219 publications

References 77 publications

OAM-Based Concentric Spatial Division Multiplexing for Cellular IoT Terminals

OAM-Based Concentric Spatial Division Multiplexing for Cellular IoT Terminals

AI-Assisted Network-Slicing Based Next-Generation Wireless Networks

A Multi-Site NFV Testbed for Experimentation With SUAV-Based 5G Vertical Services

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