A5039352682- Advanced Wireless Communication Technologies
- Advanced MIMO Systems Optimization
- IoT and Edge/Fog Computing
- Energy Efficient Wireless Sensor Networks
- Mobile Ad Hoc Networks
- Security in Wireless Sensor Networks
- Millimeter-Wave Propagation and Modeling
- IoT Networks and Protocols
- Satellite Communication Systems
- Software-Defined Networks and 5G
- UAV Applications and Optimization
- Electromagnetic Compatibility and Measurements
- Electromagnetic Compatibility and Noise Suppression
- Cloud Computing and Resource Management
- Energy Harvesting in Wireless Networks
- Microwave Engineering and Waveguides
- Cooperative Communication and Network Coding
- Lightning and Electromagnetic Phenomena
- Full-Duplex Wireless Communications
- Privacy-Preserving Technologies in Data
- Electromagnetic Simulation and Numerical Methods
- Advanced Optical Network Technologies
- Wireless Communication Security Techniques
- Antenna Design and Analysis
- Internet Traffic Analysis and Secure E-voting
National and Kapodistrian University of Athens
2007-2025
Infinity (United States)
2024
Queen's University Belfast
2023
Synelixis (Greece)
2020-2022
Technological Educational Institute of Central Greece
2008-2018
Hellenic Civil Aviation Authority
2010-2015
Technological Educational Institute of Thessaly
2014
National Technical University of Athens
1999-2006
Hellenic Aerospace Industry (Greece)
2003
Maritime activities represent a major domain of economic growth with several emerging maritime Internet Things use cases, such as smart ports, autonomous navigation, and ocean monitoring systems. The enabler for this exciting ecosystem is the provision broadband, low-delay, reliable wireless coverage to ever-increasing number vessels, buoys, platforms, sensors, actuators. Towards end, integration unmanned aerial vehicles (UAVs) in communications introduces an dimension connectivity going...
Abstract The range of applications wireless sensor networks is so wide that it tends to invade our every day life. In the future, a network will survey health, home, roads we follow, office or industry work in even aircrafts use, an attempt enhance safety. However, themselves are prone security attacks. list attacks, although already very long, continues augment impeding expansion these networks. trust management schemes consist powerful tool for detection unexpected node behaviours (either...
The digitization of manufacturing industry has led to leaner and more efficient production, under the Industry 4.0 concept. Nowadays, datasets collected from shop floor assets information technology (IT) systems are used in data-driven analytics efforts support informed business intelligence decisions. However, these results currently only isolated dispersed parts production process. At same time, full integration artificial (AI) all is lacking. In this context, goal manuscript present a...
Driven by the emerging trend for transparent, open and programmable communications, Open Radio Access Network (O-RAN) constitutes dominant architectural approach deploying future wireless networks. Towards standardizing specifying building blocks principles of O-RAN, a coordinated global effort has been observed, mainly comprised O-RAN Alliance, operators several research activities. This paper presents aspects current status deployments, integrating both existing ongoing activities from...
The full deployment of sixth-generation (6G) networks is inextricably connected with a holistic network redesign able to deal various emerging challenges, such as integration heterogeneous technologies and devices, well support latency bandwidth demanding applications. In complex environment, resource optimization, security privacy enhancement can be quite demanding, due the vast diverse data generation endpoints associated hardware elements. Therefore, efficient collection mechanisms are...
The deployment of maritime communication networks (MCNs) enables Internet-of-Things (IoT) applications, related to autonomous navigation, offshore facilities and smart ports. Still, the majority nodes, residing in MCNs lacks reliable connectivity. Towards this end, integrating unmanned aerial vehicles (UAVs) sixth generation (6G) MCN topologies results formation an segment, complementing shore base stations that may offer insufficient coverage, satellite communication, characterized by...
The diversity of applications that current and emerging Wireless Sensor Networks (WSNs) are called to support imposes different requirements on the underlying network with respect delay loss, while at same time WSN its own intricacies. satisfaction these highly depends metric upon which forwarding routes decided. In this view, IETF ROLL group has proposed RPL routing protocol, can flexibly work various metrics, as long they hold specific properties. system implementer/user is free decide...
Aerial networks represent a complementary technology for the provision of fifth-generation (5G) wireless communication services via high- and low-altitude platforms (HAPs/LAPs) or airborne vehicles. This paper proposes three-dimensional (3-D) regular-shaped geometry-based stochastic model (RS-GBSM) millimeter wave (mmWave) massive multiple-input-multiple-output (MIMO) aerial fading channels. A birth-death process is used to non-stationary properties clusters on both spatial temporal domains....
Ιn this review article, a comprehensive study is provided regarding the latest achievements in simulation techniques and platforms for fifth generation (5G) wireless cellular networks. In context, calculation of set diverse performance metrics, such as achievable throughput uplink downlink, mean Bit Error Rate, number active users, outage probability, handover rate, delay, latency, etc., can be computationally demanding task due to various parameters that should incorporated system link...
The goal of the study presented in this article is to provide a general overview various aspects related electric vehicles (EVs), along with all associated emerging challenges and perspectives. In context, basic types EVs corresponding charging technologies are analyzed. Since expected be key component future smart electrical grids (SEG), connection grid issues, advanced techniques (i.e., wireless power transfer), analyzed as well. To end, main features, requirements vehicle (V2G)...
5G is considered to be the technology that will accommodate development and management of innovative services with stringent diverse requirements from end users, calling for new business models industry. In this context, efficient Network Services (NS) serving specific vertical industries spanning across multiple administrative domains heterogeneous infrastructures challenging. The main challenges regard provision NSs considering Quality Service (QoS) per industry along optimal usage...
Energy efficiency (EE) constitutes a key target in the deployment of 5G networks, especially due to increased densification and heterogeneity. In this paper, Deep Q-Network (DQN) based power control scheme is proposed for improving system-level EE two-tier heterogeneous multi-channel cells. The algorithm aims maximize system by regulating transmission downlink channels reconfiguring user association scheme. To efficiently solve problem, DQN-based method established, properly modified ensure...
The provision of high data rate services to mobile users combined with improved quality experience (i.e., zero latency multimedia content) drives technological evolution towards the design and implementation fifth generation (5G) broadband wireless networks. To this end, a dynamic network approach is adopted whereby topology configured according service demands. In parallel, many private companies are interested in developing their own 5G networks, also referred as non-public networks...
Maritime activities are vital for economic growth, being further accelerated by various emerging maritime Internet of Things (IoT) use cases, including smart ports, autonomous navigation, and ocean monitoring systems. However, broadband, low-delay, reliable wireless connectivity to the ever-increasing number vessels, buoys, platforms sensors in communication networks (MCNs) has not yet been achieved. Towards this end, integration unmanned aerial vehicles (UAVs) MCNs provides an dimension...
The next generation of shipping industry, namely Shipping 4.0 will integrate advanced automation and digitization technologies towards revolutionizing the maritime industry. As conventional maintenance practices are often inefficient, costly, unable to cope with unexpected failures, leading operational disruptions safety risks, need for efficient predictive (PdM), relying on machine learning (ML) algorithms is paramount importance. Still, exchange training data might raise privacy concerns...
As the discussions on sixth generation (6G) wireless networks progress at a rapid pace, various approaches have emerged over last years regarding new architectural concepts that can support 6G vision. Therefore, goal of this work is to highlight most important technological efforts in relation definition concept. To end, primary challenges are firstly described, which be viewed as driving forces for standardization. Afterwards, novel discussed concept, such introduction artificial...
Hybrid cloud multi-access edge computing (MEC) deployments have been proposed as efficient means to support Internet of Things (IoT) applications, relying on a plethora nodes and data. In this paper, an overview the area hybrid clouds considering relevant research areas is given, providing technologies mechanisms for formation such MEC deployments, well emphasizing several key issues that should be tackled by novel approaches, especially under 5G paradigm. Furthermore, decentralized...
Smart homes, powered mostly by Internet of Things (IoT) devices, have become very popular nowadays due to their ability provide a holistic approach towards effective energy management. This is made feasible via the deployment multiple sensors, which enables predicting consumption machine learning approaches. In this work, we propose FedTime, novel federated for smart home takes into consideration age time series datasets each client. The proposed method based on averaging but aggregates...
The rapid growth in the number of interconnected devices on Internet (referred to as Things—IoT), along with huge volume data that are exchanged and processed, has created a new landscape network design operation. Due limited battery size computational capabilities IoT nodes, processing usually takes place external devices. Since latency minimization is key concept modern-era networks, edge servers close proximity nodes gather process related data, while some cases offloading cloud might...