A5073664844- Opportunistic and Delay-Tolerant Networks
- Caching and Content Delivery
- Software-Defined Networks and 5G
- IoT and Edge/Fog Computing
- Mobile Ad Hoc Networks
- Cloud Computing and Resource Management
- Distributed systems and fault tolerance
- Advanced MIMO Systems Optimization
- Age of Information Optimization
- Energy Efficient Wireless Sensor Networks
- Error Correcting Code Techniques
- Radar Systems and Signal Processing
- Wireless Signal Modulation Classification
- Electric Power Systems and Control
- Optical Wireless Communication Technologies
- Cooperative Communication and Network Coding
- Cognitive Radio Networks and Spectrum Sensing
- Space exploration and regulation
- Supply Chain and Inventory Management
- Personal Information Management and User Behavior
- Satellite Communication Systems
- Transportation and Mobility Innovations
- Full-Duplex Wireless Communications
- Real-time simulation and control systems
- Telecommunications and Broadcasting Technologies
Virginia Tech
2023-2024
Northeastern University
2019-2020
US Ignite
2020
Universidade Federal de Minas Gerais
2016-2019
University of Bristol
2019
Instituto Tecnológico de Aeronáutica
2014-2016
Universidade Estadual de Campinas (UNICAMP)
2016
In this article, we present the design and implementation of software-defined IoT management (SDIM) framework based on networking (SDN)-enabled architecture that is purposely built for edge computing multidomain wireless sensor networks (WSNs). This can dynamically provision devices to enable machine-to-machine (M2M) communication as well continuous operational fault detection WSNs. Unlike existing approaches in literature, SDIM mainly deployed at multiaccess (MEC) nodes integrated with...
The increasing integration of inverter-based resources (IBR) and various other devices in the power system requires fast, reliable, scalable communication technologies, such as 5G, for their stable control operation. Having a 5G-enabled real-time simulator (RTS) setup facilitates evaluating performance systems with 5G communication. This paper designs an experimental 5G-enable testbed. A microgrid testbed is developed at Virginia Tech (VT) Blacksburg, VA, to perform case studies. provided by...
In this paper, we propose a novel congestion control framework for delay- and disruption tolerant networks (DTNs). The proposed framework, called Smart-DTN-CC, adjusts its operation automatically as function of the dynamics underlying net- work. It employs reinforcement learning, machine learning technique known to be well suited problems in which environment, case network, plays crucial role; yet, no prior knowledge about target environment can assumed, i.e., only way acquire information is...
Blockchain technology relies on Peer-to-Peer (P2P) ledgers that require a mechanism to maintain security and ensure consensus. The Proof of Work (PoW) consensus algorithm requires participants dedicate significant computation solve cryptography puzzle. Difficulty (PoW-D) in large public blockchains, such as Ethereum, is adjusted based the time taken by winning miner mine last block since system unaware power blockchain. consortium private blockchains provide greater visibility nodes...
With the advance of Internet Things (IoT), interaction between humans and smart objects is already a reality. New applications that are expected to operate in dynamic environments must support different modes human/machine (e.g., voice sign language), exhibit same or better performance heterogeneous wireless optical networks, be able react real time. In particular, dispersed computing has arisen as an approach deal with latency issues this context. work described herein, we design lighting...
In this demonstration, we present the RIC Orchestrator (RIC-O), a system that optimizes deployment of Near Real-time RAN Intelligent Controller (Near-RT RIC) components across cloud and edge computing nodes. RIC-O quickly efficiently adapts to sudden changes redeploys as needed. We describe small-scale real-world experiments using disaggregated Near-RT within Kubernetes demonstrate its effectiveness.
In this paper, we propose a novel modeling framework to study congestion in delay- and disruption tolerant networks (DTNs). The proposed model is based on directed site-bond percolation where sites represent space-time positions of DTN nodes, bonds are contact opportunities, i.e. Communication links that can be established whenever nodes come range each other. To the best our knowledge, first using theory. simple yet general used evaluate different control mechanisms variety scenarios...
A crucial problem in distributed systems is the probability of failure occurrence resources. Recent studies have been searching different ways for improving execution time applications and enhancing fault-tolerant mechanisms. In many cases testing performed using simulated environments. This work presents implementation a simulator computational grids prone to resource failures. The presented allows evaluation topologies monitoring services on grid including job scheduling, automatic...
This article investigates the deployment of a Near-Real-Time Radio Access Network (RAN) Intelligent Controller (near-RT RIC) on distributed cloud infrastructure composed multiple physical sites with different amounts resources and associated costs. The challenge is dynamically adapting near-RT RIC to most cost-effective arrangement while meeting latency requirements between controlled nodes. We introduce an optimization model solve disaggregated placement problem, considering cloud-native...
Open Radio Access Network (O-RAN) introduced a common control and management overlay, allowing mobile network operators to embed networking intelligence using different types of third-party applications: xApps for real-time loops, rApps Artificial Intelligence (AI)/Machine Learning (ML)-based classification decision-making. However, the development reference implementations lags behind progress in other O-RAN-related standardization efforts. In this demonstration, we showcase...
Efficient spectrum management is crucial for the Citizen Broadband Radio Service (CBRS), promoting shared radio frequency use. The US Federal Communications Commission (FCC) designated range of 3550 MHz to 3700 three types users: incumbent users, Priority Access License (PAL) and General Authorized (GAA) users. Spectrum System (SAS) coordinates sharing among user tiers by using Environment Sensing Capabilities (ESC) sensors detect users prioritize their access while operating in uninformed...
Advanced wireless communication network testbeds are now widely being deployed around European and cross-continental. This represents an interesting opportunity for vertical industry academia to perform experimentation validation before a real deployment. In this paper, we present 5GinFIRE as suitably flexible platform towards open 5G (Network Function Virtualization (NFV) ecosystem playground. On top of platform, designed smart city safety system use case, exploring capabilities through...
In this demonstration, we explore the impact of optical-wireless network infrastructure when vary locus computing for Internet Things (IoT) services. Those services could involve devices ranging from low complexity sensors and actuators (e.g., smart light bulbs) to more advanced ones multimedia glasses); in our experiment, focus on former. We design a system that allows control bulbs (on/off, color, brightness) through voice sign language. location at which command processing (voice or...