Nikolaos D. Tselikas

Learn More
The term Internet of Things refers to the networked interconnection of objects of diverse nature, such as electronic devices, sensors, but also physical objects and beings as well as virtual data and environments. Although the basic concept of the Internet of Things sounds simple, its application is difficult and, so far, the respective existing(More)
Service oriented architectures (SOAs) are constantly gaining ground for the provision of business to business as well as user-centric services, mainly in the form of Web services technology. SOAs enable service providers to design and deploy new,composite service offerings out of existing component services. In order to match end-user expectations with(More)
We demonstrate a Moving Extended Cell concept that provides seamless communication with high end-user mobility in broadband 60 GHz Radio-over-Fiber networks. Mathematical and simulation-based performance analysis are presented, showing that this technique can guarantee seamless connectivity irrespective of the overlapping area between adjacent cells(More)
We describe the dominant handoff algorithms applied in vehicular Radio-over-Fiber (RoF) networks at 60 GHz, i.e., the Virtual Cellular Zone (VCZ) and the Moving Extended Cell (MEC), respectively. We also introduce the Moving Extended NCells (MENC) algorithm, in order to examine if it could be also a dominant candidate for high-speed vehicular 60GHz RoF(More)
We demonstrate a handover scheme for supporting high end-user mobility in a 60 GHz broadband picocellular Radio-over-Fiber network. The proposed scheme relies on a novel Moving Extended Cell (MEC) concept which is based on user-centric virtual groups of adjacent cells that transmit the same data content to the user. The MEC concept utilizes a mechanism for(More)
We present the handoff techniques required to support mobile end-users in 60GHz Radio-over-Fiber (RoF) networks. We analyze the dominant handoff algorithms proposed for 60GHz RoF networks in outdoor environments, by emphasizing to the corresponding handoff algorithms that can be applied in high speed vehicular communications, i.e. Moving Cell (MC), Moving(More)