Papers by Dimitra Kaklamani
2009 IEEE Globecom Workshops, 2009
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This paper investigates the diversity performance of the on-body fading channels at 2.45 GHz, foc... more This paper investigates the diversity performance of the on-body fading channels at 2.45 GHz, focusing on the effect of the human body movement. This investigation is based on signal measurements conducted for mobile user cases in both an anechoic chamber and an indoor office environment, using bodyworn antennas. The effects of the body movement on the fading characteristics of the
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21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
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Lecture Notes in Computer Science, 1996
Abstract -A Parallel Method of Moments (PMoM) technique is introduced to analyse electri-cally la... more Abstract -A Parallel Method of Moments (PMoM) technique is introduced to analyse electri-cally large planar conducting structures. An integral equation is derived in terms of the in-duced conductivity currents, which is solved using entire domain Galerkin technique, with Chebyshev type ...
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Lecture Notes in Computer Science, 1995
Abstract There are two major advantages of applying High Performance Computing (HPC) to electroma... more Abstract There are two major advantages of applying High Performance Computing (HPC) to electromagnetic problems. Firstly, to reduce execution times of a given size of problem from days/hours to minutes/seconds. Secondly , the purpose of this paper, to investigate ...
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2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
In this paper the impact of the position of user's hand holding a multiple-input-... more In this paper the impact of the position of user's hand holding a multiple-input-multiple-output (MIMO) terminal on system performance and more specifically on channel capacity is investigated. We consider a 4times4 MIMO system with a personal digital assistant (PDA) equipped with a compact array of 4 patch elements. Radiation field patterns of the antenna elements in the presence of the
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Recent advances in mobile communications, location/sensing technologies and data processing are b... more Recent advances in mobile communications, location/sensing technologies and data processing are boosting the deployment of context-aware services and smart spaces creation. This is reflected in urban environments by the smart-city vision, a city with advanced ICT and surveillance infrastructures offering to citizens a diversity of services. Nevertheless, privacy risks and threats ambush, since collection and process of large amount of personal data occur. Although technology enables the collection of data, its protection against abuse is left to data protection legislation. However, privacy and security requirements, other than being general and abstract terms to be regarded as legislature issues, should be brought down in the technological reality and carefully accounted for in devising technical solutions. In order to limit the disclosure and misuse of citizens' personal data, this report introduces a distributed unit of trust, as a mediating entity that manages, in a privacy ...
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Proceedings of the Second International Symposium of Trans Black Sea Region on Applied Electromagnetism (Cat. No.00TH8519), 2000
Summary form only given. The notion of quaternions was conceived in the 19th century by the Irish... more Summary form only given. The notion of quaternions was conceived in the 19th century by the Irish theoretical Physicist G. Hamilton. The initial motivation was a mathematically compact expression of vector rotations in a four-dimensional space. Quaternions became a subject of theoretical algebra, but they were also used in problems of theoretical physics. In electromagnetics, quaternions have been used very
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2009 International Conference for Internet Technology and Secured Transactions, (ICITST), 2009
... We plan though to exploit this type in the future, in order to enable the definition of condi... more ... We plan though to exploit this type in the future, in order to enable the definition of conditional roles, and therefore it is mentioned here. ... [17] J.-W. Byun, E. Bertino, N. Li, “Purpose Based AccessControl of Complex Data for Privacy Protection”, in Proceedings of the 10th ACM ...
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2006 IEEE International Conference on Communications, 2006
The adoption of packet-switched technologies in mobile communication systems has enabled the prov... more The adoption of packet-switched technologies in mobile communication systems has enabled the provision of IP-based services to mobile users. Yet, these systems, such as the UMTS network, are not flexible enough to leave space for IP-oriented protocols to dominate nor are they able to meet the stringent QoS requirements imposed by multimedia services. This paper presents an innovative Beyond 3G
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2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
Page 1. The 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communi... more Page 1. The 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'07) 1-4244-1144-0/07/$25.00 ©2007 IEEE. TECHNICAL ENFORCEMENT OF PRIVACY LEGISLATION GV Lioudakis EA Koutsoloukas NL Dellas ...
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2009 International Conference on Advanced Information Networking and Applications Workshops, 2009
Page 1. Privacy Protection in Passive Network Monitoring: an Access Control Approach Georgios V. ... more Page 1. Privacy Protection in Passive Network Monitoring: an Access Control Approach Georgios V. Lioudakis, Fotios Gogoulos, Anna Antonakopoulou, Dimitra I. Kaklamani, Iakovos S. Venieris School of Electrical and Computer ...
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2007 16th IST Mobile and Wireless Communications Summit, 2007
... An open issue is whether a pure ontology based approach is realistic and feasible with regard... more ... An open issue is whether a pure ontology based approach is realistic and feasible with regard ... Also, in future work a performance comparison using other approaches and using the actual ... Council on the protection of individuals with regard to the processing of personal data and ...
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2010 10th IEEE International Conference on Computer and Information Technology, 2010
Page 1. Privacy-Aware Access Control and Authorization in Passive Network Monitoring Infrastructu... more Page 1. Privacy-Aware Access Control and Authorization in Passive Network Monitoring Infrastructures Fotios Gogoulos, Anna Antonakopoulou, Georgios V. Lioudakis, Aziz S. Mousas, Dimitra I. Kaklamani, Iakovos S. Venieris ...
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2010 14th Panhellenic Conference on Informatics, 2010
Page 1. Visualising Access Control: The PRISM Approach Aziz S. Mousas, Anna Antonakopoulou, Fotio... more Page 1. Visualising Access Control: The PRISM Approach Aziz S. Mousas, Anna Antonakopoulou, Fotios Gogoulos, Georgios V. Lioudakis, Dimitra I. Kaklamani, Iakovos S. Venieris School of Electrical and Computer Engineering ...
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2010 14th Panhellenic Conference on Informatics, 2010
Abstract As privacy is becoming a salient issue for both organizations that provide digital servi... more Abstract As privacy is becoming a salient issue for both organizations that provide digital services, as well as their users, access control shifts from traditional role-based models to more sophisticated paradigms that include additional provisions with respect to privacy. ...
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Proceedings of the First International ICST Conference on Simulation Tools and Techniques for Communications Networks and Systems, 2008
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2008 International Multiconference on Computer Science and Information Technology, 2008
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2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003., 2003
This paper describes a novel single feed dual-band inverted-F antenna (IFA) operating in the ISM ... more This paper describes a novel single feed dual-band inverted-F antenna (IFA) operating in the ISM and UNNI bands. The antenna is printed on a PC card and is suitable for Bluetooth and wireless LAN 802.11a applications. The three-dimensional finite element method (FEM) electromagnetic simulator, HFSS, is used in the design simulation of the IFA/PC card system. The results exhibit a
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2010 IEEE International Conference on Communications Workshops, 2010
Road traffic congestion constitutes a parameter that significantly affects quality of life in mod... more Road traffic congestion constitutes a parameter that significantly affects quality of life in modern cities, while it has a direct impact on the environmental pollution. Optimizing the traffic flows would bring considerable and multi-aspect gains. In this light, this paper proposes an intelligent traffic management system for the provision of a dynamic, in real-time fleet navigation service at large scale.
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Papers by Dimitra Kaklamani
is based on the conduction and analysis of signal measurements in an indoor
office environment using bodyworn antennas. Three principal combining
techniques, namely selection combining (SC), equal gain combining (EGC)
and maximal ratio combining (MRC) are considered. A statistical characterization of the fading experienced by dual diversity on-body channels is
performed in terms of first and second order statistics. Our investigations
have shown that among several distributions tested, the distribution provides sufficient fit to measured combined signal envelopes and also
offers a good approximation to second order statistics for the majority of
test cases.