George Kokkonis

George Kokkonis
University of Western Macedonia | UOWM · Business Administration

Doctor of Philosophy

About

66
Publications
28,733
Reads
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443
Citations
Citations since 2016
57 Research Items
428 Citations
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2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Additional affiliations
June 2011 - July 2016
University of Macedonia
Position
  • PhD
March 2011 - January 2019
University of Macedonia
Position
  • PostDoc Position

Publications

Publications (66)
Conference Paper
Enabling video, voice, and haptic communication over the sixth generation (6G) cellular networks is becoming a demand. Tactile Internet (TI) is expected to find many use cases over the 6G systems as it will enable the smooth transfer of haptic communications in real-time. TI will enable exceptional applications and transform both many industry sect...
Article
Full-text available
Accidents in highway tunnels involving trucks carrying flammable cargoes can be dangerous, needing immediate confrontation to detect and safely evacuate the trapped people to lead them to the safety exits. Unfortunately, existing sensing technologies fail to detect and track trapped persons or moving vehicles inside tunnels in such an environment....
Conference Paper
Full-text available
Novel technologies, new trends, brand-new protocols, more efficient algorithms, and smart systems have been used all over the globe by civilized countries to have better and more convenient living. In the present study, the aim was to develop and present the optimal IoT architecture for a "Smart" system. To achieve this, there were several challeng...
Conference Paper
The speedy development of immersive technologies and unexpected situations like the COVID-19 pandemic are expected to boost the application of extended reality (XR) in tourism. Virtualization techniques can create a virtual environment identical to the real one, giving to the user the feeling of actually being there. The aim of haptic systems is to...
Conference Paper
Nowadays, the need for more efficient video compression algorithms is growing, due to the increasing consumption of video content in higher resolutions. Thus, it is obvious that video compression technologies play a key role in the distribution of video content in broadcasting. In this paper, a comparative analysis and QoE assessment over the most...
Article
Full-text available
Sensory and haptic data transfers to critical real-time applications over the Internet require better than best effort transport, strict timely and reliable ordered deliveries. Multi-sensory applications usually include video and audio streams with real-time control and sensory data, which aggravate and compress within real-time flows. Such real-ti...
Chapter
Full-text available
Museum visitors are very focused and demanding. Immersive technologies as virtual and augmented reality, interactive haptics, 3D scanning and plotting, content digitization, and personalized automatic navigation must be exploited by museums in order to stimulate museum visitors and extract their attention. The authors of this work propose an open s...
Article
Full-text available
he growing acceptance of wireless ad hoc networks in war situations, emergency situations, research applications, and conference rooms has resulted in the massive growth of these networks. Interconnecting haptic interfaces in virtual environments is rather a demanding task. This paper presents the topology of the mobile ad hoc networks. Moreover, i...
Conference Paper
Full-text available
Internet of Things (IoT) is a new technological revolution which brings many advantages to its users. However, IoT devices and sensor nodes in Wireless Sensor Networks (WSNs) have limited resources, such as energy, memory, computational speed, and communication bandwidth. Thus, better utilization of energy is necessary to avoid problems like high e...
Conference Paper
In this paper, the authors investigate an energy detection scheme for Cognitive Radio (CR). The mathematical analysis of the probability density function (pdf) based Likelihood Ratio Test (LRT) statistic for deciding in favor of Primary User (PU) absence or presence proceeds by means of convolution statistics. Dynamic threshold is set for comparing...
Conference Paper
Full-text available
Critical and emergency incidents often lead to asset, infrastructure and human loss, all major concerns for companies, organizations and governments. Early prediction, emer-gency management plans and immediate dissemination of information can mitigate such events from occurring. To this end, early warning systems have been deployed. Early warning s...
Conference Paper
Full-text available
Sensory data originating from IoT devices, after being received as encrypted over wireless channels, are plaintext stored in databases. However, if database data integrity, validity and safety must be ensured and additionally, IoT operations or actions implicitly require of non-repudiation, database encryption is a one-way path. Focusing on big IoT...
Article
Full-text available
Nowadays, the audio and visual modalities are totally defined in terms of communication, computation and data storage on the internet, but what is lacking so far is a methodology to involve the sense of touch. A fundamental part of this is to have the capacity to transmit touch in perceived real-time, which is empowered by suitable hardware, like r...
Conference Paper
Full-text available
Encrypted data transmitted from secure wireless channels as part of Internet of Things (IoT) infrastructures are mainly stored in database tables using plaintext records. As IoT data content confidence in supportive A.I. actions radically increases, the selection and use of database encryption is essential in terms of data integrity safety as well...
Article
Full-text available
Data stored in Internet of Things (IoT) storage repositories radically increases. Database vendors struggle in order to gain more market share, develop new capabilities and overcome the disadvantages of previous releases, while providing new features for the IoT industry. Taking into consideration the vast amount of database capacity and processing...
Article
Full-text available
This paper describes the procedure for creating tactile interfaces for Android smart phones. It uses the HTML5 Vibration API and the Javascript programming language to create vibration patterns in order to increase the interaction between visually impaired people with their smart phones. Apart from vision, audio and haptics are used to maximize the...
Article
Full-text available
The growing acceptance of wireless ad hoc networks in war situations, emergency situations, research applications, and conference rooms has resulted in the massive growth of these networks. Interconnecting haptic interfaces in virtual environments is rather a demanding task. This paper presents the topology of the mobile ad hoc networks. Moreover,...
Chapter
Full-text available
This paper proposes a cloud application architecture called OLEA, for monitoring the olive oil production chain. OLEA system deployment follows a divide-and-conquer management logic, which maintains olive tree clusters. On each cluster, NFC technology is used for monitoring plant protection practices and fertilization. Apart from on-site monitoring...
Research
Full-text available
Data stored in Internet of Things (IoT) storage repositories radically increases. Database vendors struggle in order to gain more market share, develop new capabilities and overcome the disadvantages of previous releases, while providing new features for the IoT industry. Taking into consideration the vast amount of database capacity and processing...
Article
Full-text available
The amount of data stored in IoT databases increases as the IoT applications extend throughout smart city appliances, industry and agriculture. Contemporary database systems must process huge amounts of sensory and actuator data in real-time or interactively. Facing this first wave of IoT revolution, database vendors struggle day-by-day in order to...
Article
Full-text available
Real-time transferring of the haptic sense over the Internet is quite a challenging task. This paper outlines the proposed protocols for transferring haptic streams over the Internet. Moreover, it describes the Quality of Service requirements that a network has to fulfill in order to successfully use haptic interfaces with high update rates over th...
Article
Full-text available
This paper presents the design and development of an e-health jacket for healthcare monitoring, the architecture of which is based on commercially available and cost-effective hardware components, open-source software and a remote data repository for storage. In particular, the system utilizes a number of wearable medical sensors to measure differe...
Article
Full-text available
Data transmitted from sensors and actuators as part of the Internet of Things (IoT) infrastructure are stored either in database tables following relational schema and normalization forms or in schema less collections using JSON string or binary formulation. As data content in such repositories radically increases, the selection and use of the appr...
Article
Full-text available
This paper presents the design and development of Tactile Interfaces with Enhanced Images with Patterns and Textures for Visually Impaired People. In particular, haptic interfaces uses a number of predefine tactile texture and patterns to enhance the experience of the tactile feeling of images for visually. The open source OpenCv application is use...
Conference Paper
Full-text available
Nowadays, the behavior and needs of museum visitors are focused and demanding. New available technologies, innovative applications, museum exhibits digitization and exhibits information 3D content outlays, excite museum visitors who desire even more specific information through human-machine interactions. Based on the above, authors propose an open...
Preprint
Full-text available
Supermedia streams transfer video, audio, haptic and other sensory data. Real -time transfering of supermedia streams over the Internet is quite challenging. This paper outlines the proposed protocols for transferring supermedia streams over the Internet. Moreover, it describes the Quality of Service (QoS) requirements for supermedia applications t...
Conference Paper
Full-text available
This paper presents the high level architecture of a smart, modern, interactive laboratory-class called Smart Interconnected Interactive Classroom (SIIC). It describes the interoperability of telecommunication technologies, sensors and actuators over a virtual environment that enhances the learning process and experience. In the context of this wor...
Conference Paper
Several IoT middleware protocols have been proposed for the wireless transfer of IoT data. The main representatives are the CoAP, the SOAP, the MQTT, and the HTTP protocols. The main concerns on these technologies are the delay, packet loss, processing effort, and power consumption that IoT devices demand, in order to successfully transfer wireless...
Chapter
Full-text available
During the last decade, the Internet take-up rate in Greece among individuals is much lower compared with the EU average. This paper investigates issues of the digital divide in Greece, by analyzing micro-data from the Eurostat ICT survey on household and individuals in 2012. It aims to quantify and explain the influence of socio-economic and demo...
Article
Full-text available
The amount of data stored in IoT databases increase s as the IoT applications extend throughout smart c ity appliances, industry and agriculture. Contemporary database systems must process huge amounts of sensory and actuator data in real-time or interacti vely. Facing this first wave of IoT revolution, dat abase vendors struggle day-by-day in...
Article
Full-text available
Modern irrigation systems utilize sensors and actuators, interconnected together as a single entity. In such entities, A.I. algorithms are implemented, which are responsible for the irrigation process. In this paper, the authors present an irrigation Open Watering System (OWS) architecture that spatially clusters the irrigation process into autonom...
Conference Paper
Full-text available
Wireless communications play a significant role in the spread of the Internet of Things. Power consumption, Long range coverage, bandwidth and security are critical factors for the blossom of each wireless technology. This paper presents authors experimentation and implementation journey to open source IoT for animal tracking. Focusing on cows, it...
Conference Paper
Full-text available
Index Terms—Big Data, Cloud Computing, IoT, Healthcare https://bi.hse.ru/en/announcements/202626319.html
Chapter
Full-text available
This paper deals with the wireless transfer of real-time high update rate supermedia data over the Internet of Things. It presents the related work on supermedia data transferring and QoE requirements. It proposes a high-level architectural design for the transport of wireless multiple supermedia streams over IoT. The most known compression techniq...
Conference Paper
Full-text available
As the Internet spreads, new web applications come to light. One promising sector that is still in its infancy is supermedia applications. Supermedia applications process video, audio, haptic and other sensory data. Quite a few protocols have been suggested for the transfer of real-time supermedia data over the Internet. This paper outlines the rel...
Conference Paper
Full-text available
This paper proposes a novel neuro-fuzzy computational algorithm for embedded irrigation systems called FITRA. It presents a new system architecture for the process of continuously monitoring environmental conditions and efficient irrigation of arable areas. The system includes microcontroller equipment with multiple sensors interspersed all over th...
Article
Full-text available
This paper presents the design of a novel, real-time, wireless, multisensory, smart surveillance system with 3D-HEVC features. The proposed high-level system architecture of the surveillance system is analyzed. The advantages of HEVC encoding are presented. Methods for synchronization between multiple streams are presented. Available wireless stand...
Conference Paper
Full-text available
This paper proposes a new system architecture and HTTP communication mechanism called Smart Barrel System (Wine-SBS) for the process of monitoring Debina varietal sparkling wine fermenting conditions, produced at the area of Zitsa Epirus, Greece. The system includes microcontroller equipment with sensors that monitor wine attributes and storage con...
Conference Paper
Full-text available
In this paper, we propose a new protocol for sensors Frequency Shift Keying data transmission named RF-Tania protocol and a mobile application in order to test our protocol. This protocol focuses on Energy Efficiency and it is based on an existent open source protocol stack. RF-Tania protocol is an Ad-Hoc On Demand Protocol (Tania-AHOD). RF-Tania p...
Conference Paper
Full-text available
In this paper, we propose a new protocol for sensors Frequency Shift Keying data transmission named RF-Tania protocol framework. This protocol focuses on Energy Efficiency and it is based on an existent open source protocol stack. Tania protocol framework includes a set of three protocols: The Sensors Data Transmission Protocol (Tania-SDTP), the Ad...
Article
Full-text available
This contribution describes the design and implementation of a novel Wireless Body Area Network system for healthcare monitoring, the architecture of which is based on commercially available and cost-effective hardware components, open-source software and a remote data repository for storage. In particular, the system utilizes a number of wearable...
Article
Full-text available
Wireless Body Area Networks (WBAN) is the recent trend for localized and personalized medical services. For that purpose, several tele-medicine architectures and WBAN frameworks for patient monitoring have been proposed. This paper presents a new medical protocol MESETP (Medical Services Transport Protocol), that underlies data delivery for both re...
Conference Paper
The improvement of the Internet's network conditions have made possible for the real time Haptic data transferring over the Internet. With the word Haptic we refer to the sense of touch that the user feels when he uses a Haptic service. This paper deals with the transfer of real time Haptic data over the Internet. It presents the related work on Ha...
Article
Full-text available
Wireless Body Area Networks (WBAN) is the recent trend for localized and personalized medical services. For that purpose, several tele-medicine architectures and WBAN frameworks for patient monitoring have been proposed. This paper presents a new medical protocol MESETP (Medical Services Transport Protocol), that underlies data delivery for both re...
Conference Paper
Full-text available
A Wearable Health Monitoring system is described that uses low-cost off the shelf sensors and computing components, along with custom made software, to provide an economical solution to personalized health care monitoring problems, while retaining all the functionality and flexibility of more expensive systems. Cloud technology is used to store sen...