R. D. Oliveira

ORCID: 0000-0003-0083-469X
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About
Contact & Profiles
Research Areas
  • Quantum Information and Cryptography
  • Optical Network Technologies
  • Advanced Optical Network Technologies
  • Advanced Photonic Communication Systems
  • Quantum Computing Algorithms and Architecture
  • Software-Defined Networks and 5G
  • Quantum optics and atomic interactions
  • Quantum Mechanics and Applications
  • Interconnection Networks and Systems
  • Network Traffic and Congestion Control
  • Advanced Memory and Neural Computing
  • Quantum-Dot Cellular Automata
  • Optical Wireless Communication Technologies
  • Network Time Synchronization Technologies
  • Neural Networks and Reservoir Computing
  • Engineering and Test Systems
  • Advancements in Semiconductor Devices and Circuit Design
  • Network Security and Intrusion Detection
  • IoT and Edge/Fog Computing
  • Embedded Systems Design Techniques
  • Telecommunications and Broadcasting Technologies
  • Photonic and Optical Devices
  • Orbital Angular Momentum in Optics
  • Advancements in PLL and VCO Technologies
  • Caching and Content Delivery

University of Bristol
2021-2024

Universidade Estadual de Montes Claros
2021

Universidade Federal de Uberlândia
2019-2020

We have successfully demonstrated an on-demand programmable hardware encryptor for optical networks enabled by the software-defined network (SDN) and tested its application in a quantum key distribution (QKD) use case. believe our proposed is unique way that it combines encryption algorithms with 100G Ethernet interface to provide high-transmission capacity flexible security. formed library consisting of AES-256, AES-192, AES-128, Camellia-256, XOR, no-encryption configurations. Our system...

10.1364/jocn.439677 article EN Journal of Optical Communications and Networking 2021-10-20

A machine learning framework is presented for the coexistence of C-band quantum and classical channels over same fibre with various lengths, co-existence powers, channel allocations, identifying region where viable.

10.1364/ofc.2024.m2j.2 article EN Optical Fiber Communication Conference (OFC) 2022 2024-01-01

Next generation communications will require the exploration of alternatives to existing technologies enable end-to-end connections for secure data exchange. 5G presents advanced connectivity opportunities even remote rural areas. However, platforms benefit from complementary methods enhance network capabilities and fulfill trust requirements. Due high throughput links, high-beam directivity, energy efficiency, free-space optics (FSO) is an alternative solution with potential deliver...

10.1109/mcom.001.2300813 article EN IEEE Communications Magazine 2024-10-01

Although OpenFlow-based SDN networks make it easier to design and test new protocols, when you think of clean slate architectures, their use is quite limited because the parameterization its flows resides primarily in TCP/IP protocols. Besides, despite many benefits that offers, some aspects have not yet been adequately addressed, such as management plane activities, network startup, options for connecting data control plane. Based on these issues limitations, this work presents a bootstrap...

10.1109/icoin48656.2020.9016580 article EN 2022 International Conference on Information Networking (ICOIN) 2020-01-01

We successfully integrated FPGA-based low-cost high-precision timing scheme into an optical transport network solution. 16.2 ps synchronisation precision has been achieved across two devices while network-wise setup can sustain up to 21.2 precision.

10.1364/ofc.2023.m3g.7 article EN Optical Fiber Communication Conference (OFC) 2022 2023-01-01

10.1109/infocomwkshps57453.2023.10226129 article EN IEEE INFOCOM 2022 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) 2023-05-20

We have demonstrated a dynamic QKD network with latency-aware and QKD-capacity sensitive algorithm. This scheme negotiates the optimal key refresh period assigns priorities for preferred channels. Network reconfiguration time is within 49ms.

10.23919/ofc49934.2023.10117306 article EN 2023-03-01

Cloud Computing has brought a new vision about what applications might expect from underlying networks. Software Defined Networking, in this context, provides techniques to make networks more flexible application requirements as well virtual networks, which help implement the provisioning of physical resources support tenants. Cloud-hosted assume that have high throughput, but do not consider competition through medium, handled by switches. This paper aims present concept Workspace paradigm...

10.5220/0007753104640470 article EN cc-by-nc-nd 2019-01-01

We have successfully implemented a multilevel programmable network resilience and security for Time-Shared Optical Networks (TSON). A SDN controller enables flexible control of FPGA-based coding encryption/decryption cores secured resilient TSON.

10.1364/ofc.2022.m3z.5 article EN Optical Fiber Communication Conference (OFC) 2022 2022-01-01

We propose an orchestration framework to optimize network and computing resources minimize degradation from quantum classical communication in distributed interconnect networks.

10.1364/ofc.2024.th2a.8 article EN Optical Fiber Communication Conference (OFC) 2022 2024-01-01

We have successfully demonstrated the first 5G open radio access network (O-RAN)-enabled and quantum-secured optical solution tested its performance in a fronthaul use case. Our proposed is unique way that it combines quantum key distribution (QKD)-compatible on-demand programmable 100 Gbps Ethernet encryptor with multi-tenant operation while satisfying stringent timing requirements of O-RAN ultra-low pipeline latency. Moreover, our encryption cores provide fastest reconfiguration speeds...

10.1364/jocn.483644 article EN Journal of Optical Communications and Networking 2023-03-31

We successfully integrated FPGA-based low-cost high-precision timing scheme into an optical transport network solution. 16.2 ps synchronisation precision has been achieved across two devices while network-wise setup can sustain up to 21.2 precision. © 2022 The Author(s)

10.23919/ofc49934.2023.10117327 article EN 2023-03-01

We present an 8-user quantum network supporting entanglement distribution, prepare-andmeasure key Tbps level classical communication, their co-existence and switching capability in a metro with over 50 km of field-deployed fibre.

10.1049/icp.2023.2666 article EN IET conference proceedings. 2023-11-13

We reported a field trial of dynamic QKD-protected optical network for O-RAN fronthaul with FPGA-based encryption. The coexistence quantum and classical channels is enabled on deployed fibres 609.05ns latency one-way frame encryption 2 kbps key rate.

10.1049/icp.2023.2505 article EN IET conference proceedings. 2023-11-13

Distributed quantum computing (DQC) has emerged as a promising approach to overcome the scalability limitations of monolithic processors in terms capability. However, realising full potential DQC requires effective resource allocation. This involves efficiently distributing circuits across network by assigning each circuit an optimal subset processing units (QPUs), based on factors such their computational power and connectivity. In heterogeneous networks with arbitrary topologies...

10.48550/arxiv.2409.12675 preprint EN arXiv (Cornell University) 2024-09-19

We investigate how a dynamically reconfigurable network supports short-range distributed quantum computing in data center scenario by analysing the penalties and benefits of adopting such architecture NetSquid platform utilising two use cases.

10.1364/ofc.2023.tu2h.2 article EN Optical Fiber Communication Conference (OFC) 2022 2023-01-01

We have demonstrated a dynamic QKD network with latency-aware and QKD-capacity sensitive algorithm. This scheme negotiates the optimal key refresh period assigns priorities for preferred channels. Network reconfiguration time is within 49ms.

10.1364/ofc.2023.tu3h.5 article EN Optical Fiber Communication Conference (OFC) 2022 2023-01-01

We investigate how a dynamically reconfigurable network supports short-range distributed quantum computing in data center scenario by analysing the penalties and benefits of adopting such architecture NetSquid platform utilising two use cases.

10.23919/ofc49934.2023.10116412 article EN 2023-03-01

We demonstrate an FPGA-based architecture integrating QKD with MACsec Key Agreement protocol to quantum-secure the Open-RAN Fronthaul. This includes a for key synchronization in control plane. A rate of 1 key/sec was achieved providing high reliability critical applications.

10.1049/icp.2023.2361 article EN IET conference proceedings. 2023-11-13
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