• Conference Object  

      The airplace indoor positioning platform for Android smartphones 

      Laoudias, Christos; Constantinou, George; Constantinides, Marios; Nicolaou, Silouanos; Zeinalipour-Yazdi, Constantinos D.; Panayiotou, Christos G. (2012)
      In this demonstration paper, we present an indoor positioning system developed for Android smartphones, coined Airplace. To infer the unknown user location we rely on ubiquitous WLANs and exploit Received Signal Strength ...
    • Conference Object  

      Anyplace: A Crowdsourced Indoor Information Service 

      Georgiou, K.; Constambeys, T.; Laoudias, Christos; Petrou, L.; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      People do most of their activities, business, commerce, entertainment and socializing indoors. As all of these are increasingly aided by online services and indoor spaces are becoming bigger and more complex, there is a ...
    • Conference Object  

      Automating the development of device-aware Web Services: A model-driven approach 

      Achilleos, Achilleas P.; Paspallis, Nearchos; Papadopoulos, George Angelos (2011)
      The huge growth of the mobile devices market and the fast-changing requirements of mobile users, increase the need to develop native Web Service clients that can be deployed on both mobile and desktop devices. Existing ...
    • Conference Object  

      CLODA: A crowdsourced linked open data architecture 

      Larkou, G.; Metochi, J.; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (2013)
      In this paper we present our Crowdsourced Linked Open Data Architecture (CLODA), a first attempt to combine crowdsourcing, localization and location-based services to generate, collect, validate and relate real-world, ...
    • Conference Object  

      Context-aware Media Player (CaMP): Developing context-aware applications with separation of concerns 

      Paspallis, Nearchos; Achilleos, Achilleas P.; Kakousis, Konstantinos; Papadopoulos, George Angelos (2010)
      The constant advent of powerful mobile devices has raised the potential of building novel context-aware applications. These applications let the users enjoy a better experience by sensing their context and automating tasks ...
    • Article  

      Context-aware self-optimization in multiparty converged mobile environments 

      Antoniou, Josephina; Christophorou, C.; Neto, A.; Sargento, S.; Cabral Pinto, F.; Carapeto, N. F.; Mota, T.; Simoes, J.; Pitsillides, Andreas (2010)
      The increase of networking complexity requires the design of new performance optimization schemes for delivering different types of sessions to users under different conditions. In this scope, special attention is given ...
    • Conference Object  

      Crowdsourced indoor localization for diverse devices through radiomap fusion 

      Laoudias, Christos; Zeinalipour-Yazdi, Constantinos D.; Panayiotou, Christos G. (IEEE Computer Society, 2013)
      Crowdsourcing is an emerging field that allows to tackle difficult problems by soliciting contributions from common people, rather than trained professionals. In the post-pc era, where smartphones dominate the personal ...
    • Article  

      Crowdsourcing emergency data in non-operational cellular networks 

      Chatzimilioudis, Georgios; Costa, Constantinos; Zeinalipour-Yazdi, Constantinos D.; Lee, W. -C (2017)
      In overloaded or partially broken (i.e., non-operational) cellular networks, it is imperative to enable communication within the crowd to allow the management of emergency and crisis situations. To this end, a variety of ...
    • Conference Object  

      Crowdsourcing for mobile data management 

      Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (2013)
      Crowdsourcing refers to a distributed problemsolving model in which a crowd of undefined size is engaged in the task of solving a complex problem through an open call. This novel problem-solving model found its way into ...
    • Conference Object  

      Demonstration abstract: Crowdsourced indoor localization and navigation with Anyplace 

      Petrou, L.; Larkou, G.; Laoudias, Christos; Zeinalipour-Yazdi, Constantinos D.; Panayiotou, Christos G. (IEEE Computer Society, 2014)
      In this demonstration paper, we present the Anyplace system that relies on the abundance of sensory data on smartphones (e.g., WiFi signal strength and inertial measurements) to deliver reliable indoor geolocation information. ...
    • Conference Object  

      Emergency network design - saving lives by saving power 

      Hadaad, N.; Pitsillides, Andreas; Kolios, Panayiotis; Kuras, A.; Addie, R. G. (Institute of Electrical and Electronics Engineers Inc., 2017)
      In disasters and emergencies severity of trauma and loss of life can be reduced by more effective communication between emergency workers, volunteers, and survivors. Typically, almost all of these parties will hold mobile ...
    • Article  

      Evaluation metrics for ehealth services and applications within smart houses context 

      Georgiadis, Dimosthenis; Germanakos, Panagiotis; Andreou, Panayiotis G.; Samaras, George S. (2009)
      eHealth services is a continuously growing sector, driving the need for advances in both the network characteristics and infrastructure, as well as in the available mobile devices used. The same need requires the development ...
    • Conference Object  

      Explore and exploit in wireless ad hoc emergency response networks 

      Kolios, Panayiotis; Pitsillides, Andreas; Mokryn, O.; Papadaki, Katerina P. (IEEE Computer Society, 2014)
      This work is concerned with the problem of efficient and intelligent message forwarding in wireless networks. This problem arises in many diverse scenarios within ad-hoc networks and especially networks formed during and ...
    • Conference Object  

      Human Mobility Computing and Privacy: Fad or Reality? 

      Lee, A. J.; Pelechrinis, K.; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      The advent of mobile computing and sensing technologies, in conjunction with omni-present and high-speed mobile networks, allow nowadays the capture of human mobility data at an extremely high fidelity. Modern mobile ...
    • Conference Object  

      A hybrid peer-to-peer solution for context distribution in mobile and ubiquitous environments 

      Hu, X.; Ding, Y.; Paspallis, Nearchos; Bratskas, Pyrros; Papadopoulos, George Angelos; Vanrompay, Y.; Pinheiro, M. K.; Berbers, Y. (2009)
      With the proliferation of mobile devices such as PDAs and smart-phones, users get accustomed to using them in their daily life. This raises the expectations for user-customized and environment-aware services. However, ...
    • Article  

      MBMS Handover control: A new approach for efficient handover in MBMS enabled 3G cellular networks 

      Pitsillides, Andreas; Christophorou, C. (2007)
      With the introduction of Multimedia Broadcast Multicast Service (MBMS) system in 3rd Generation (3G) mobile cellular networks, the Radio Network Controller (RNC) for radio resource efficiency can use either Point-to-Point ...
    • Article  

      A model-driven framework for developing web service oriented applications 

      Achilleos, Achilleas P.; Kapitsaki, Georgia M.; Papadopoulos, George Angelos (2012)
      The advancements made in terms of the capabilities of mobile devices have shifted the interest of service engineering towards frameworks that are able to deliver applications rapidly and efficiently. The development of ...
    • Article  

      A peer-to-peer based infrastructure for context distribution in mobile and ubiquitous environments 

      Hu, X.; Ding, Y.; Paspallis, Nearchos; Papadopoulos, George Angelos; Bratskas, Pyrros; Barone, P.; Mamelli, Alessandro; Vanrompay, Y.; Berbers, Y. (2007)
      The increasing proliferation of mobile devices has raised the expectations for user-customized and environment-aware services. However, mobile context-aware systems inherently feature characteristics of distribution and ...
    • Article  

      A pluggable and reconfigurable architecture for a context-aware enabling middleware system 

      Paspallis, Nearchos; Rouvoy, R.; Barone, P.; Papadopoulos, George Angelos; Eliassen, F.; Mamelli, Alessandro (2008)
      Context awareness is a core feature of modern mobile and ubiquitous computing systems. Although it has not reached its full potential yet, one can already observe significant activity in the area of software engineering ...
    • Article  

      A pluggable middleware architecture for developing context-aware mobile applications 

      Paspallis, Nearchos; Papadopoulos, George Angelos (2014)
      The proliferation of powerful smartphone devices provides a great opportunity for context-aware mobile applications becoming mainstream. However, we argue that conventional software development techniques suffer because ...