Scholarly Works, Electrical and Computer Engineering
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Research articles, presentations, and other scholarship
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REQIBA: Regression and Deep Q-Learning for Intelligent UAV Cellular User to Base Station Association
(IEEE, 2021)Unmanned Aerial Vehicles (UAVs) are emerging as important users of next-generation cellular networks. By operating in the sky, UAV users experience very different radio conditions than terrestrial users, due to factors ... -
AIRTIME: End-to-end Virtualization Layer for RAN-as-a-Service in Future Multi-Service Mobile Networks
(IEEE, 2020)Future mobile networks are envisioned to become multi-service systems, enabling the dynamic deployment of services with vastly different performance requirements, accommodating the needs of diverse service providers. ... -
AI-Powered Real-Time Channel Awareness and 5G NR Radio Access Network Scheduling Optimization
(IEEE, 2021-04-19)As with any other wireless technology, 5G is not immune to jamming. To achieve consistent performance, network resource scheduling must be optimized in a way that reacts to jamming in the NR channel environment. This paper ... -
Impact Angle Control of Local Intense dB/dt Variations During Shock-Induced Substorms
(American Geophysical Union, 2021-12-01)The impact of interplanetary shocks on the magnetosphere can trigger magnetic substorms that intensify auroral electrojet currents. These currents enhance ground magnetic field perturbations (dB/dt), which in turn generate ... -
Characterization of multi-scale ionospheric irregularities using ground-based and space-based GNSS observations
(2021-07-12)Ionospheric irregularities can adversely affect the performance of Global Navigation Satellite System (GNSS). However, this opens the possibility of using GNSS as an effective ionospheric remote sensing tool. Despite ... -
SDR Virtualization in Future Mobile Networks: Enabling Multi-Programmable Air-Interfaces
(IEEE, 2018-01-01)The fifth generation of mobile networks is envisioned to provide connectivity services to a multitude of devices with vastly different requirements. Current mobile systems rely on inflexible hardware-based RF front-end ... -
When optical networks meet wireless systems: experiments at the boundary
(IEEE, 2018-01-01)One of the most important announced assets of the forthcoming 5G network is the capability to merge different technologies in an overarching much more effective telecommunication system. At the verge of 5G deployment, it’s ... -
The Internet of Things, Fog and Cloud continuum: Integration and challenges
(Elsevier, 2018-10-01)The Internet of Things needs for computing power and storage are expected to remain on the rise in the next decade. Consequently, the amount of data generated by devices at the edge of the network will also grow. While ... -
Towards Enabling RAN as a Service - The Extensible Virtualisation Layer
(IEEE, 2019-01-01)Network slicing is one of the key enabling techniques for 5G, allowing Mobile Network Operators (MNOs) to support services with diverging requirements on top of their infrastructure. The MNOs should be able to offer network ... -
Flexible fine-grained baseband processing with network functions virtualization: Benefits and impacts
(Elsevier, 2019-03-14)The increasing demand for wireless broadband connectivity is leading mobile network operators towards new means to expand their infrastructures efficiently and without increasing the cost of operation. Network Functions ... -
Customization and Trade-offs in 5G RAN Slicing
(IEEE, 2019-04-01)The heterogeneity of the requirements for 5G necessitate a versatile 5G radio access network (RAN); slicing offers a way of realising a flexible RAN through customised virtual subnetworks. In this paper, we focus on how ... -
UAVs as Mobile Infrastructure: Addressing Battery Lifetime
(IEEE, 2019-06-01)Unmanned Aerial Vehicles (UAVs) can play an important role in next generation cellular networks, acting as flying infrastructure which can serve ground users when regular infrastructure is overloaded or unavailable. As ... -
FUTEBOL Control Framework: Enabling Experimentation in Convergent Optical, Wireless, and Cloud Infrastructures
(IEEE, 2019-10-01)Large-scale testing and evaluation of network solutions are complex and typically involve multiple domains (e.g., optical, wireless, and cloud). The FUTEBOL project has deployed geographically distributed testbeds in Brazil ... -
Gated Recurrent Unit Neural Networks for Automatic Modulation Classification With Resource-Constrained End-Devices
(IEEE, 2020-01-01)The continuous increase in the number of mobile and Internet of Things (IoT) devices, as well as in the wireless data traffic they generate, represents an essential challenge in terms of spectral coexistence. As a result, ... -
Intelligent Base Station Association for UAV Cellular Users: A Supervised Learning Approach
(IEEE, 2020-01-01)Fifth Generation (5G) cellular networks are expected to provide cellular connectivity for vehicular users, including Unmanned Aerial Vehicles (UAVs). When flying in the air, these users experience strong, unobstructed ... -
Mandate-driven Networking Eco-system: A Paradigm Shift in End-to-End Communications
(IEEE, 2020-01-01)The wireless industry is driven by key stakeholders that follow a holistic approach of “one-system-fits-all” that leads to moving network functionality of meeting stringent End-to- End (E2E) communication requirements ... -
Network Sharing for Reliable Networks: A Data-Driven Study
(IEEE, 2020-01-01)The next generation of mobile networks will bring an appetite for reliable communication, which enables emerging critical-communication services. In this paper, we present network sharing between operators as a way to ... -
Market-Driven Stochastic Resource Allocation Framework for Wireless Network Virtualization
(IEEE, 2020-03-01)Wireless network virtualization is emerging as a potential game-changer for fifth-generation wireless networks. Virtualization of network resources (e.g., infrastructure and spectrum) brings several advantages. One key ... -
Indoor Millimeter-Wave Systems: Design and Performance Evaluation
(IEEE, 2020-06-01)Indoor areas, such as offices and shopping malls, are a natural environment for initial millimeter-wave (mmWave) deployments. Although we already have the technology that enables us to realize indoor mmWave deployments, ... -
Breaking Down Network Slicing: Hierarchical Orchestration of End-to-End Networks
(IEEE, 2020-10-01)Network slicing is one of the key enabling techniques for 5G, allowing Network Providers (NPs) to support services with diverging requirements on top of their physical infrastructure. In this paper, we address the limited ...
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