Publications

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Book Chapter
A. Sfairopoulou, C. Macian, and B. Bellalta, "Adaptive codec selection for VoIP in multi-rate WLANs", Handbook of Research on Wireless Multimedia: Quality of Service and Solutions: Idea Group Inc., 2008.
Conference Paper
A. Sfairopoulou, C. Macian, and B. Bellalta, "Architecture of a VoIP Traffic Exchange Point", EUNICE Summer School, Stuttgart, Germany, 09/2006.
C. Macian, J. Barceló, A. Sfairopoulou, M. Oliver, and J. Infante, "Arquitectura de gestión de un operador neutral Wi-Fi", V Jornadas de Ingenieria Telematica (JITEL) 2005, Vigo, Spain, 09/2005.
C. Macian, A. Sfairopoulou, and M. Oliver, "Arquitectura para un punto de intercambio de trafico de voz sobre IP", XV Jornadas Telecom I+D, Madrid, Spain, 11/2005.
C. Macian, J. Barceló, A. Sfairopoulou, M. Oliver, and J. Infante, "Barcelona's Open Access Network Testbed", IEEE TridentCom, Barcelona, Spain, 03/2006.
J. Infante, R. Sagarra, C. Macian, and M. Oliver, Ducts, fibers, municipalities, barriers to entry and effective competition: A case study of successful public-private partnership in the provision of neutral FTTX infrastructure in Barcelona, , 12/2008.
J. Infante, M. Oliver, and C. Macian, "Neutral Networks: A real alternative to achieve both effective competition and social benefits?", ITS Conference on Regional Economic Development, Beijing, China, 06/2006.
J. Barceló, E. Aragó, C. Macian, P. Novell, and M. Isidre, "Offering VoIP Services in a Wireless Neutral Operator Environment", MCWC'06, Aman, Jordan, 09/2006.
M. Oliver, J. Infante, and C. Macian, "Operador Neutro Wi-Fi en Catalunya", Internet Global Congress, Barcelona, 06/2005.
J. Infante, M. Oliver, and C. Macian, "P2PSIP: A new scenario for deploying collaborative Internet based services", 36th Telecomunications Policy Research Conference, Washington, USA, 09/2008.
A. Sfairopoulou, J. Barceló, B. Bellalta, C. Macian, and M. Oliver, "Position Information for VoIP Emergency Calls", Web Information Systems and Technologies, Barcelona, Spain, 03/2007.
A. Sfairopoulou, C. Macian, and B. Bellalta, "QoS adaptation in SIP-based VoIP calls in multi-rate 802.11 environments", ISWCS 2006, Valencia, 09/2006.
C. Macian, and J. Infante, "The tragedy of the commons vs P2P success: An analysis of the conditions for cooperative sustainability in the file-sharing world", ITS 2008, International Telecommunications Society, 17th Biennial Conference, Montreal, Canada, 06/2008.
A. Sfairopoulou, C. Macian, and B. Bellalta, "VoIP Codec Adaptation Algorithm in Multirate 802.11 WLANs: Distributed vs. Centralized Performance Comparison", Lecture Notes in Computer Science, vol. 4606: Springer, pp. 52, 2007.
C. Macian, M. Oliver, and J. Infante, "VoIP Traffic exchange points: An emerging new service in a framework of uncertainty", ITS Conference on Regional Economic Development, Beijing, 06/2006.
J. Infante, C. Macian, and M. Oliver, "Which way to a (judicious) municipal wireless network? An assessment of the different alternatives for municipal participation in wireless local networks", 35th Research Conference on Communication, Information and Internet Policy (TPRC): Virginia, USA, 09/2007.
J. Infante, M. Oliver, and C. Macian, "Wi-Fi Neutral Operator: Promoting cooperation for network and service growth", ITS Conference on Regional Economic Development, Pontevedra, Spain, 07/2005.
IETF Internet Draft
X. Jiang, H. Zheng, C. Macian, and V. Pascual, Service Extensible P2P Peer Protocol, : Internet Draft draft-jiang-p2psip-sep-01, 02/2008.
Journal Article
A. Sfairopoulou, B. Bellalta, C. Macian, and M. Oliver, "A Comparative Survey of Adaptive Codec Solutions for VoIP over Multi-rate WLANs: a Capacity vs Quality performance Trade-off", EURASIP Special Issue on Multiple Access Communications in Future-Generation Wireless Network, 2011.
A. Sfairopoulou, B. Bellalta, and C. Macian, "How to tune VoIP codec selection in WLANs?", IEEE Communicattion Letters, vol. 12, issue 8, 08/2008.
J. Infante, R. Sagarra, C. Macian, and M. Oliver, "Public private partnership in FTTX passive infrastructure deployment: the 22@BCN case", International Journal of Management and Network Economics, vol. 3, issue 342, 03/2009. Abstract
Report
A. Sfairopoulou, C. Macian, and B. Bellalta, "Dynamic measurement-based codec selection for VoIP in multirate IEEE 802.11 WLANs", The 8th COST 290 Management Committee Meeting, no. TD(07)018, Malaga, University of Malaga, 02/2007.
A. Sfairopoulou, B. Bellalta, and C. Macian, "Joint Admission Control and Adaptive VoIP Codec Selection Policies in Multi-rate WLANs", The 10th Cost290 Meeting, no. TD(07)042, Vienna, 10/2007.