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Author (down) Konstantinos Koufos; Krisztina Cziner; Pekka Parviainen pdf  isbn
openurl 
  Title Multicast video performance evaluation for emergency response communications Type Conference Article
  Year 2007 Publication Intelligent Human Computer Systems for Crisis Response and Management, ISCRAM 2007 Academic Proceedings Papers Abbreviated Journal ISCRAM 2007  
  Volume Issue Pages 595-604  
  Keywords Ad hoc networks; Image communication systems; Mobile ad hoc networks; Multicasting; Network routing; Routing algorithms; Telecommunication links; Telecommunication networks; Edge effect; Multicast routing; Network simulators; On-demand multicast routing protocols; Random Waypoint mobility model; Unidirectional links; Emergency services  
  Abstract Group-oriented services including data dissemination, group calls and real-time video transmission are considered as an important application in public safety communications. The main interest is in one-way real-time video transmission from the hot spot to multiple recipients. This is important for efficient emergency response. The changing topology of the multi-hop communication links in a public safety environment makes routing and multicasting extremely challenging task. The purpose of this paper is to study the performance of wireless mobile ad-hoc networks with one-way multicast video traffic. To consider a realistic public safety scenario, the effect of extensive unidirectional links is investigated. The system performance study of various ad-hoc network configurations is done by simulations. For wireless multicast routing, the On Demand Multicast Routing Protocol is used. The performance results are compared with the requirements provided by Statement of Requirement document of standardization project MESA.  
  Address Teknillinen Korkeakoulu, TKK, Finland  
  Corporate Author Thesis  
  Publisher Information Systems for Crisis Response and Management, ISCRAM Place of Publication Delft Editor B. Van de Walle, P. Burghardt, K. Nieuwenhuis  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2411-3387 ISBN 9789054874171; 9789090218717 Medium  
  Track MSCT Expedition Conference 4th International ISCRAM Conference on Information Systems for Crisis Response and Management  
  Notes Approved no  
  Call Number Serial 660  
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Author (down) Aamir Mahmood; Konstantinos Koufos; Krisztina Cziner pdf  isbn
openurl 
  Title Multicast voice performance within a public safety cell Type Conference Article
  Year 2008 Publication Proceedings of ISCRAM 2008 – 5th International Conference on Information Systems for Crisis Response and Management Abbreviated Journal ISCRAM 2008  
  Volume Issue Pages 18-24  
  Keywords Computer simulation; Equipment testing; Information systems; Reliability analysis; Voice/data communication systems; Distributed Coordination Function; Emergency scenario; Initial deployments; Mobility model; Public safety communications; Simulation studies; Statistical properties; Voice over Internet protocol; Multicasting  
  Abstract In public safety communications the first responders are getting directions about the tactical action plan with multicast voice whereas they can report back to the dispatcher with unicast voice. In this paper, the aim is to find the maximum number of voice calls for situation reporting in the presence of multicast voice for tactical coordination. In order to increase the reliability of our analysis we verify our simulator against a test bed prototype consisting of three 802.11 terminals. The simulation study is applied within a mobile cell. The proposed mobility model applies for initial deployment in emergency scenarios. We investigate the statistical properties of the model by simulations.  
  Address Teknillinen Korkeakoulu, TKK, Finland  
  Corporate Author Thesis  
  Publisher Information Systems for Crisis Response and Management, ISCRAM Place of Publication Washington, DC Editor F. Fiedrich, B. Van de Walle  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2411-3387 ISBN 9780615206974 Medium  
  Track Communication Systems and Technologies for Crisis and Disaster Response Expedition Conference 5th International ISCRAM Conference on Information Systems for Crisis Response and Management  
  Notes Approved no  
  Call Number Serial 735  
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