Sofoklis Kyriazakos

• Aalborg University

Today’s IoT deployments are highly complex, heterogeneous and constantly changing. This poses severe security challenges such as limited end-to-end security support, lack of cross-platform cross-vertical security interoperability as well as the lack of security services that can be readily applied by security practitioners and third party developer...

The expanded deployment of smart objects in IoT applications is pushing existing IoT platform architectures and their security functionalities to their limits. Indeed, smart objects exhibit semi-autonomous behaviours, are not centrally controlled all the time and therefore need more dynamic approaches in protecting them against vulnerabilities and...

The trends in healthcare are continuously evolving towards a virtually rich personalized experience that involves human-to-human (H2H), human-to-machine (H2M) and machine-to-machine (M2M) interactions. This article proposes a platform that fosters an ecosystem of games and applies them to real-life situations to motivate an active lifestyle in elde...

It is important to motivate older adults to lead an active lifestyle. Mobile games and applications can motivate older adults to increase physical, social and cognitive activity. Such a mobile application platform is developed within the GOAL project (H2020 project no. 731656). The aim of this paper is to introduce GOAL, to provide an overview of o...

The Internet of Things (IoT) is the communications paradigm that can provide the potential of ultimate communication. The IoT paradigm describes communication not only human to human (H2H) but also machine to machine (M2M) without the need of human interference. The Smart Grid (SG) is the new paradigm that enables highly efficient energy production...

A modern way of life needs a modern way of coaching. Despite the proliferation of ICT solutions for personalized health care, there is still no easy way to provide older adults with integrated coaching services. In this paper we introduce the concept of Council of Coaches — a radically new virtual coaching concept based on multiple autonomous, embo...

The Internet of Things (IoT) is the communications paradigm that can provide the potential of ultimate communication. The IoT paradigm describes communication not only human to human (H2H) but also machine to machine (M2M) without the need of human interference. In this paper, we examine, review and present the current IoT technologies starting fro...

Independent living of older adults is one of the main challenges linked to the ageing population. Especially those living with diseases like COPD, MCI or frailty, need more support in everyday life and this is by itself a big societal challenge with impact in multiple sectors. In this paper we present eWALL, an innovative open-source eHealth platfo...

The sector of telecommunications is one of the flagships of engineering from the time that has been invented, as it was enabling communication that is a major need of humans. In the decades of ‘90s and early 2000 the rapid development of telecommunications with the parallel evolution of Internet, have significantly influenced people, communities an...

The integration of everyday objects into the Internet represents the foundation of the forthcoming Internet of Things (IoT). Smart objects will be the building blocks of the next generation of applications that will exploit interaction between machines to implement enhanced services with minimum or no human intervention in the loop. A crucial facto...

Wireless radio-based communication technologies have drastically evolved over the past decades to deliver lower cost, higher efficiency, enhanced quality of experience and diversified smart services (e.g., ambient assisted living, smart grid, e-health). The future development of these technologies faces multi-fold challenges, which are determined b...

Independent living of senior citizens is one of the main challenges linked to the ageing population. Senior citizens may suffer from a number of diseases, including the decline in cardiopulmonary conditions, weaker muscle functions and a declined neuromuscular control of the movements, which result in a higher risk of fall and a higher vulnerabilit...

Building the Environment for Things as a Service (BETaaS) is a novel platform for the deployment and execution of content-centric Machine-to-Machine (M2M) applications, which relies on a local cloud of gateways. BETaaS platform provides a uniform interface and services to map content with things in a context-aware manner. Deployment of services for...

The challenges faced by standardization in relation to the potential of wireless communication technologies to deliver lower cost, higher efficiency, enhanced quality of experience and diversified smart e-Health services, are multi-fold and determined by the complexity of the myriad of emerging user and usage scenarios. In addition, there is the ch...

Characterization of a home water-flow signal, as an outcome of an analysis of the most appropriate representation in time, frequency and time-frequency domain, has not been adequately studied; mainly due to lack of such specific need. Nevertheless, being able to characterize a water-flow signal in the home-environment can support Ambient Assisted L...

Building the Environment for Things as a Service (BETaaS) is a novel platform for the deployment and execution of content-centric M2M applications, which relies on a local cloud of gateways. BETaaS platform provides a uniform interface and services to map content with things in a context-aware manner. Deployment of services for the execution of app...

With the advent of high efficacy light emitting diode directional lamps as a key component in focal lighting, new possibilities emerge for re-designing the smart home scenario. A smart home scenario is characterized by enabled intelligent interworking of various wireless and wired technologies to provide inhabitants with ease of use of appliances,...

Independent living of senior citizens is one of the main challenges linked to the ageing population, due to the impact on: (1) the life of the elderly people, (2) the national health systems, (3) the insurance companies, (4) the relatives and (5) the care-givers. Senior citizens may suffer from a number of diseases, including the decline in cardiop...

EPIKOUROS is an innovative project where methodologies and tools will be developed for designing, building and deploying Internet-of-Things applications on Virtual Environments. EPIKOUROS main goal is to design and develop a virtualized middleware platform that would allow easily creating and structuring environments. In turn, it would allow the co...

In this paper we present a novel Building Management System (BMS) that is based on advanced pattern matching algorithms and is utilizing a cloud-based Service Oriented Architecture (SOA) to offer a number of rich personalized applications for Ambient Living. The novelty presented in this paper is deriving from the evolution of a proprietary BMS pro...

Recent advances of device manufacturing and communication technologies create the basis for an exponential grow of new devices with Internet connection in the next years. This will provide an unprecedented opportunity to create applications and services that go far beyond the mere purpose of each participant, as enabled by the interactions in this...

One of the major functions of telemedicine is the prompt delivery of modern healthcare to the remotest areas with reduced cost and efficient use of communication resources. The establishment of a well organized telemedicine system is therefore exigent for the developing countries like Bangladesh where there are extreme paucities of efficient health...

Health workers in rural health care serve most of the population in Nepal, but are isolated from specialist support and access to current medical information. Fortunately, the advent of Information and Communication Technologies (ICT) has unleashed new opportunities for the delivery of health services. In Nepal, there are very remote and less devel...

Delivery of eHealth and eInclusion services is a topic that has already been addressed the last decades. The evolution of Internet and technology in general, enable the deployment of reliable infrastructures to even run life critical services, while inclusion of people who live in remote places is achieved through different channels available. Neve...

One of the most popular situation that the telecommunications market is ­experiencing is the merging of operators vendors and manufactures. The list of famous mergers is not limited to the list below; it is extended into a large number that has both advantages and disadvantages. It is difficult to judge the result of a merger as this should cover a...

According to the 2009 World Alzheimer Report, the number of people living with Alzheimer's and dementia is predicted to double almost every 20 years, and people will experience their first symptoms of dementia at an earlier age. In Europe the number of people with dementia is conservatively anticipated to increase by 40% over the next 20 years main...

The main objective of this deliverable is to provide a short overview of 4 communities involved in the pilots, envisaged type of solutions and architectures to be deployed (chapter 2) and market analysis at regional level (chapter 3) with related business cases. The Market analysis will provide an overview of market requirements, current status and...

This paper defines the requirements for cooperation of heterogeneous radio access networks (RANs) and proposes a novel radio resource management (RRM) framework for support of mobility and quality of service (QoS) in a heterogeneous communication environment comprising IMT-Advanced and legacy systems. The reference IMT-Advanced system is the one de...

One of the most important initial steps, inherent in the planning procedure of cellular networks, is their segmentation in operational parts that is performed at different levels corresponding to the hierarchy and topology of the network. The major goal of this procedure is the efficient deployment of the system and management of the distributed se...

Mobile and wireless communications are moving towards a new era that will be characterized by the seamless collaboration of heterogeneous systems, the need for high speed communications while on the move and for advanced services with quality guarantees. Recent market research studies show that most of the traffic in the future wireless networks wi...

Different user segments have various requirements and expectations towards the performance of mobile networks. Subscribers having experienced the high quality of UMTS networks desire to maintain high speech quality and excellent data throughput also ...

Admission control plays a very important role in wireless systems, as it is one of the basic mechanisms for ensuring the quality of service offered to users. Based on the available network resources, it estimates the impact of adding or dropping a new session request. In both 2G and 3G systems, admission control refers to a single network. As we ar...

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This paper describes an envisioned technology roadmap for the development of mobile and wireless communications until the year 2010. The roadmap description is based on a 3-years study (2001–2004) and monitoring of the technological developments of characteristically chosen mobile and wireless communication areas. The final definition of the techno...

One of the main challenges in CDMA networks is traffic generation and network overloading of a live-system in an efficient and realistic way. Network operators validate their network planning and dimensioning by numerous drive tests with special monitoring equipment, with several people setting up calls/sessions from different distances or by analy...

Location Based Services (LBS) is a new type of services for mobile phone users based on mobile terminal (MT) location. A large number of service providers is developing LBS, however, each service has different requirements on accuracy, response time, signaling overhead and number of subscribers that can be localized at the same time. Therefore, the...

How wireless technologies and devices are proliferating, finding wide acceptance and possibilities for deployment, is the key target of this report. Range, bandwidth and power constraints are, as in the civilian world, prominent issues and each technology described is placed for covering part of these conflicting requirements. The report starts wit...

Taking into account the recent advances in wireless communications with the deployment of various technologies that cover the same areas, secure interworking in multi-operator, multi-technology wireless communication environments is a critical issue that should be considered by all operators. This is primarily linked with risk analysis and it is th...

This report provides the baseline assumption related to environment, deployment, system design, and algorithms for the three test scenarios "base coverage urban", "microcellular", and "indoor" in which the WINNER system is exemplified and evaluated. Associated key assessment criteria are defined. The WINNER radio interface provides a versatile...

Over the last few years wireless local area networking (WLAN) has become a very important technology that offers high-speed communication services to mobile users in indoor environments. WLAN technology offers some very attractive characteristics such as high data rates, increased QoS capabilities, and low installation costs which has made many pro...

Congestion management in cellular networks is of prime importance for the mobile network operators of present and future generations. Nowadays cellular operators utilize improved planning techniques for enhanced capacity management, but on the other hand the number of mobile subscribers rapidly increases and additionally, new data-technologies for...

Mobile world's rapid growth has spurred development of new protocols and new algorithms to meet changing operation requirements such as mobile networking, and quality-of-service support. A key requirement in the bearer capabilities is the handover. The freedom to be able to make and receive calls anywhere, at any time, creating a totally new dimens...

The mobile world's rapid growth has spurred development of new protocols and new algorithms to meet changing operating requirements, such as mobile networking and quality-of-service support. Handoff is one of the most critical procedures in cellular systems. Network operators give emphasis to optimizing handover, since it is strongly related to dro...

Mobile world’s rapid growth has spurred development of new protocols and new algorithms to meet changing operation requirements- such as mobile networking, and quality-of-service support. Handoff is one of the most critical procedures in cellular systems. Network operators give emphasis to optimize handover, since it is strongly related to dropped...

A personal area network environment is a wireless ad hoc data communication system that allows a number of independent data devices to communicate. A more and more wireless devices will be used in the near future. These devices form an ad-hoc environment whose security issues are very critical. The robustness and adaptability will become the key is...

Future-generation mobile communications will provide broadband multimedia services to users, anywhere and anytime. On the other hand network performance should be guaranteed to support these applications and services. In existing cellular systems handover is one of the procedures that causes serious network shortcomings. This procedure is much more...

1 This paper describes work undertaken in the context of the IST-2001-34157 Power aware Communications for Wireless OptiMised personal Area Network (PACWOMAN). The IST program is partially funded by the EC. The author would like to acknowledge the contributions of their colleagues from Abstract-Current efforts in mobile communications are mainly ta...

Today we are moving toward the deployment of new services, mainly based on high-speed data communication. The circuit-switched networks are about to come to the end of their lifecycle and the rapidly increased number of subscribers give a boost to development of new technologies. GPRS is the first step towards this milestone and most cellular GSM o...

Localization of mobile terminals is one of the hottest topics, both for service providers and cellular operators. A large number of value added services can be offered to the users, increasing subscriber satisfaction, on the other hand network performance should be guaranteed to support these applications. In existing cellular systems handover is o...

A comprehensive study of the performance of GSM and GPRS is presented. The behavior of the network is classified into traffic load scenarios and key indicators are presented. Network response and logical channel occupation are discussed and the GPRS segment is evaluated according to a measurement campaign. Focus is given. on traffic overload and ne...

This paper describes an innovative application of Case-Based Reasoning methodologies for the dynamic management of wireless telecommunications systems. In spite of the very dynamic nature of mobile communications, wireless networks only possess limited adaptive management capabilities, which are unable to adequately follow traffic fluctuations thro...

In the light of the introduction of 3G systems, we present a comprehensive study of the performance of GSM and GPRS. UMTS is already in a few countries deployed, on the other hand it is expected that it will be limited to hot-spot areas, while voice calls will be preferably established with existing networks. At the early 80's, when GSM was introdu...

Traffic overload in wireless systems is one of the major network shortcomings which has a direct influence on the user satisfaction. In this paper we briefly describe the problem of traffic congestion and we propose an architecture that can be integrated in any cellular system of present generation and considering a set of modifications can also be...

Position location of mobile terminals is one of the most challenging issues nowadays. Apart from the large number of value added services that can be offered to the users, network support is one of the most useful applications for the cellular operators. The information used for positioning can be evaluated locally, so that the operator can enhance...

Traffic overload in wireless systems is one of the major network shortcomings which has a direct influence on the user satisfaction. In this paper we briefly describe the problem of traffic congestion and we propose an architecture that can be integrated in any cellular system of present generation and considering a set of modifications can also be...

Traffic congestion in cellular networks is a major issue for mobile network operators. Unfortunately it has been proved that today's infrastructures have failed to address this issue efficiently so far, a fact that was dramatically demonstrated during critical situations, e.g., earthquakes, New Year's eve, public events, etc. Mobile network operato...

Congestion management in cellular networks is of critical importance for mobile network operators of present and future generations. Nowadays cellular operators utilize improved planning techniques for enhanced capacity management, but on the other hand the number of mobile subscribers is rapidly increasing and additionally, the new data-technologi...

Handover is a critical feature in cellular systems and therefore handover algorithms are under extensive research. Problems in handover algorithm or its parameters may lead into call drops with a direct effect on user satisfaction. This is particularly critical for 3G systems, where high data rate users will be prime candidates for being dropped. U...

In this paper we discuss the possible position location architectures in cellular networks, their advantages and disadvantages. Localization of mobile terminals is an essential application for cellular networks. The ability to locate subscribers will give rise to developed networks, that will offer a variety of new services. Standardization groups...

The ability to locate the position of mobile terminals is emerging as a key facility to be provided by cellular network operators to their customers. There is already an important number of services enabled when position location support is present in the network, such as emergency-call assistance, fleet management location-based value added and mu...

The issue of how to tackle traffic congestion in cellular networks is of critical importance for mobile network operators. Unfortunately it has been proved that today's infrastructures have failed to address this issue efficiently so far, a fact that was dramatically demonstrated during critical situations, e.g. earthquakes, new year's eve, public...

In the previous years the number of mobile Internet subscribers has grown up, resulting in an increased demand for a reliable mobile IP protocol, that supports a variety of services, such as access to intranet, fixed IP address and the ability to receive multicast datagrams. The transition from IPv4 to IPv6 has led to a more stable protocol that fu...

Position location of mobile terminals is one of the key and vital services for enhanced network performance. A variety of services may be offered when position location is deployed, such as emergency-call assistance, fleet management, location-based value added and multimedia services, navigation, stolen vehicle monitoring, improved network managem...

Position location of mobile terminals is expected to be one of the key services for mobile network operators in the near future. A variety of services may be offered, such as emergency-call assistance, fleet management, location-based value added services, navigation, stolen vehicle monitoring, improved network management and differential billing....

located and which set of HMMs is to be used for the position estimation. To assess the accuracy of the proposed location method, calls have been performed from a car, driving through various streets and TA zones in a single GSM cell. The results are quite optimistic, our solution may fulfill the demand of many subscriber location applications, with...

Field trials of subscriber locations in a cellular network are discussed. The vehicular position location applied is a hybrid method based on pattern recognition and time of arrival (TOA) measurements. The pattern recognition is performed by hidden Markov models (HMMs) trained with prediction data to model the strength of the received signals for p...

This deliverable is the final resume of concepts and proposals of WP4 during the first phase of WINNER for the system description, with the aim cooperation schemes become an integral part of the WINNER system.