A5067608247- Energy Harvesting in Wireless Networks
- UAV Applications and Optimization
- Energy Efficient Wireless Sensor Networks
- Software-Defined Networks and 5G
- Advanced Wireless Communication Technologies
- Opportunistic and Delay-Tolerant Networks
- Advanced MIMO Systems Optimization
- IoT and Edge/Fog Computing
- Mobile Ad Hoc Networks
- Wireless Networks and Protocols
- Wireless Body Area Networks
- Cooperative Communication and Network Coding
- Wireless Power Transfer Systems
- Satellite Communication Systems
- Metamaterials and Metasurfaces Applications
- Software System Performance and Reliability
- Context-Aware Activity Recognition Systems
- Radar Systems and Signal Processing
- Underwater Vehicles and Communication Systems
- Advanced Photonic Communication Systems
- Antenna Design and Analysis
- Distributed Sensor Networks and Detection Algorithms
- Distributed Control Multi-Agent Systems
- Caching and Content Delivery
- Advanced Wireless Network Optimization
Hilti (Liechtenstein)
2023-2024
Aristotle University of Thessaloniki
2021-2023
Iquadrat (Spain)
2018-2021
National and Kapodistrian University of Athens
2016-2018
Universitat Politècnica de Catalunya
2013-2017
Linnaeus University
2015
University of L'Aquila
2014
KTH Royal Institute of Technology
2013
The upcoming fifth generation (5G) mobile communications urge software-defined networks (SDNs) and network function virtualization (NFV) to join forces with the multiaccess edge computing (MEC) cause. Thus, reduced latency increased capacity at of can be achieved, satisfy requirements Internet Things (IoT) ecosystem. If not properly orchestrated, flexibility virtual functions (VNFs) incorporation, in terms deployment lifecycle management, may cause serious issues NFV scheme. As service level...
As industries are under pressure for shorter business and product life cycles, there is an extensive effort from the research community novel profitable automation processes. This has given rise to fifth-generation (5G) Tactile Internet, which characterized by extremely low latency communication in combination with high availability, reliability, security. In this paper, we discuss key technologies support Internet characteristics industrial environments then showcase implementation of a 5G...
Data collection in massive Internet of Things networks requires novel and flexible methods. Unmanned aerial vehicles (UAVs) are foreseen as a means to collect data rapidly even remote areas without static telecommunication infrastructure. In this direction, UAV-mounted reconfigurable intelligent surfaces (RISs) aid reducing the hardware requirements signal processing complexity at UAV side, while increasing network’s energy efficiency coverage. Hence, paper, we propose utilization RIS for...
In this letter, we study the performance of network coding (NC)-aided cooperative communications in large scale networks, where relays are able to harvest energy emitted by wireless transmissions. particular, derive theoretical expressions for key metrics, i.e., probability successful data exchange and lifetime gain. The proposed analytical verified via extensive Monte Carlo simulations, demonstrating potential benefits harvested
As large-scale dense and often randomly deployed wireless sensor networks (WSNs) become widespread, local information exchange between co-located sets of nodes may play a significant role in handling the excessive traffic volume. Moreover, to account for limited life-span devices, harvesting energy network transmissions provides benefits lifetime such networks. In this paper, we study performance communication with (WEH)-enabled nodes. particular, examine two different scenarios (direct...
In this letter, we study the performance of network coding (NC)-aided cooperative communications in large scale networks, where relays are able to harvest energy emitted by wireless transmissions. particular, derive theoretical expressions for key metrics, i.e., probability successful data exchange and lifetime gain. The proposed analytical verified via extensive Monte Carlo simulations, demonstrating potential benefits harvested
In the evolving landscape of sixth-generation (6G) wireless networks, unmanned aerial vehicles (UAVs) have emerged as transformative tools for dynamic and adaptive connectivity. However, dynamically adjusting their position to offer favorable communication channels introduces operational challenges in terms energy consumption, especially when integrating advanced technologies like reconfigurable intelligent surfaces (RISs) full-duplex relays (FDRs). To this end, by recognizing pivotal role...
Emerging 5G communication paradigms, such as machine-type communication, have triggered an explosion in ad-hoc applications that require connectivity among the nodes of wireless networks. Ensuring a reliable network operation under fading conditions is not straightforward, transmission schemes and topology, i.e., uniform or clustered deployments, affect performance should be taken into account. Moreover, number increases, exploiting natural energy sources harvesting (WEH) could key to...
Considering that cities are typically divided in residential and business districts, massive population migrations between different areas introduce considerable discrepancies the traffic distribution. However, although novel technologies constantly introduced to fulfill 5G requirements, current cellular networks raise some limitations due their static deployment. Aerial with unmanned aerial vehicles (UAVs) carry access points can flexibly overcome this issue by controlling effectively an ad...
In spite of the significant advancements in wireless connectivity, static form network infrastructure cannot guarantee an uninterrupted operation ever-growing consumer electronics emergency situations such as natural disasters. occasions, employing flexible aerial nodes can tackle this issue by recovering communication rapidly, when need for connectivity is utmost importance. paper, we study use recovery after a breakdown. We provide analytical model probability that demonstrates...
As technology progresses, cars can not only be considered as a transportation medium but also an intelligent part of the cellular network that generates highly valuable data and offers both entertainment security services to passengers. Therefore, forthcoming 5G networks are said enhance Ultra-Reliable Ultra-Low-Latency will allow for new breed disrupt industry we know it today. In this work, devise unique fusion Deep Learning based mobility prediction Genetic Algorithm assisted service...
A primary objective of the forthcoming sixth generation (6G) wireless networking is to support demanding applications, while ensuring energy efficiency. Programmable environments (PWEs) have emerged as a promising solution, leveraging reconfigurable intelligent surfaces (RISs), control propagation and deliver exceptional quality-of-service. In this paper, we analyze performance network supported by <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
People worldwide are getting older and this fact has pushed the need for designing new, more pervasive, possibly cost effective healthcare systems. In field, distributed networked embedded systems, such as wireless sensor networks (WSNs), most appealing technology to achieve continuous monitoring of aged people their own safety, without affecting daily activities. This paper proposes recent advancements in field by introducing WSN4QoL, a Marie Curie project which involves academic industrial...
We present a new approach to Extended Reality (XR), denoted as iCOPYWAVES, which seeks offer naturally low-latency operation and cost effectiveness, overcoming the critical scalability issues faced by existing solutions. iCOPYWAVES is enabled emerging PWEs, recently proposed technology in wireless communications. Empowered intelligent (meta)surfaces, PWEs transform wave propagation phenomenon into software-defined process. leverage to: i) create, then ii) selectively copy scattered RF...
Future mobile networks will offer high data rates based on high-capacity fronthaul. Current fronthaul design has two main components that communicate via the common public radio interface and fiber links, i.e., remote units (RUs) implement simple signal processing centralized baseband (CBBUs) in power-consuming centers perform complex network functions. Various functional splits between CBBUs RUs are feasible, inducing trade-offs centralization gains bandwidth demands. This lacks capacity...
In this paper, routing metrics for low power and lossy networks are designed evaluated. The cross-layer interactions between medium access control (MAC) explored, by considering the specifications of IETF RPL over IEEE 802.15.4 MAC. particular, experimental study a reliability metric that extends expected transmission count (ETX) to include effects level contention parameters at MAC layer is presented. Moreover, novel guarantees load balancing increased network lifetime fulfilling...
Contemporary technologies as implemented in the field of healthcare have provided everyday clinical practice with a plethora tools to be used various settings. In this field, distributed and networked embedded systems, such Wireless Sensor Networks (WSNs), are most promising technology achieve continuous monitoring aged people for their own safety, without affecting daily activities. WSN4QoL is Marie Curie project involving academic industrial partners from three EU countries, which aims...
This paper describes in detail the design of a 5G platform based on C-RAN architecture, with fully virtualized Radio Access Network (RAN) and an optical/wireless Fronthaul. The wireless optical domains are controlled by hierarchy Software Defined Networking (SDN) controllers, which responsible for end-to-end optimization platform, including Fronthaul air interfaces. proposed architecture adopts modular eNodeB (eNB) design, where BBU RRH entities implemented Commercial Off-Τhe-Shelf (COTS)...
Internet of Things (IoT) networks are expected to be a key enabler technology for smart cities, due their ability offer real-time monitoring. In this work, we propose novel medium access control (MAC) protocol, inspired by the synergy slotted ALOHA and hybrid automatic repeat request with code combining (HARQ-CC), termed as (CCSA), improve performance IoT multiple randomly deployed sensors. Specifically, provide analytical closed-form expressions network's outage probability well its average...
As the number of nodes in wireless sensor networks (WSNs) increases, new challenges have to be faced order maintain their performance. A fundamental requirement several applications is correct transmission measurements final destinations. Thus, it crucial guarantee a high probability connectivity, which characterizes ability every node report fusion center. This network metric strongly affected by both fading characteristics and different routing protocols that are used for dissemination...
The increasing demand for fast, reliable, and robust network services has driven the telecommunications industry to design novel architectures that employ Network Functions Virtualization Software Defined Networking. Despite advancements in cellular networks, there is a need an automatic, self-adapting orchestrating mechanism can manage placement of resources. Deep Reinforcement Learning perform such tasks dynamically, without any prior knowledge. In this work, we leverage Deterministic...
The standard for 5G communication exploits the concept of a network slice, defined as virtualized subset physical resources infrastructure. As large number slices is deployed over network, it necessary to determine resource demand each and how varies time. This serves increase efficiency infrastructure without degrading slice performance. Traffic prediction common approach this demand.State-of-the-art research has demonstrated effectiveness machine learning (ML) predictors traffic in...
Next generation networks, as the Internet of Things (IoT), aim to create open and global networks for connecting smart objects, network elements, applications, web services end-users. Research industry attempt integrate this evolving technology exponential growth IoT by overcoming significant hurdles such dynamicity, scalability, heterogeneity end-to-end security privacy. Motivated above, SEMIoTICS proposes development a pattern-driven framework, built upon existing platforms, enable...
As the demand for Network Function Virtualization accelerates, service providers are expected to advance way they manage and orchestrate their network services offer lower latency future users. Modern require complex data flows between Virtual Functions, placed in separate domains, risking an increase that compromises offered constraints. This shift requires high levels of automation deal with scale load networks. In this paper, we formulate Service Chaining (SFC) placement problem then...