TY - BOOK A1 - König, Hartmut T1 - Protocol Engineering Y1 - 2012 SN - 978-3-642-29144-9 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Paul, Andreas A1 - Schuster, Franka A1 - König, Hartmut T1 - Towards the Protection of Industrial Control Systems - Conclusions of a Vulnerability Analysis of Profinet IO T2 - Detection of Intrusions and Malware, and Vulnerability Assessment, 10th International Conference, DIMVA 2013, Berlin, Germany, July 18-19, 2013, proceedings Y1 - 2013 SN - 978-3-642-39234-4 SP - 160 EP - 176 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Gäbler, Jan A1 - König, Hartmut T1 - Moversight: A Group Communication Protocol for Mobile Collaborative Applications T2 - Proceedings of the 6th Joint IFIP Wireless and Mobile Networking Conference (WMNC 2013), Dubai, United Arab Emirates, 23 - 25th April 2013 Y1 - 2013 SN - 978-1-4673-5615-2 SN - 978-1-4673-5614-5 SP - 72 EP - 79 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Gäbler, Jan A1 - König, Hartmut T1 - Moversight: An Approach to Support Mobility in Collaborative Applications Y1 - 2013 UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6578331 UR - http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6573245 SN - 978-1-4799-0747-2 N1 - 10th Annual Conference on Wireless On-demand Network Systems and Services (WONS), 2013 SP - 110 EP - 112 PB - IEEE ER - TY - GEN A1 - Kirsche, Michael A1 - Hartwig, Jonas T1 - A 6LoWPAN Model for OMNeT++ Y1 - 2013 UR - http://dl.acm.org/citation.cfm?id=2512781 SN - 978-1-4503-2464-9 N1 - SimuTools '13, Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques SP - 330 EP - 333 ER - TY - CHAP A1 - Klauck, Ronny A1 - Kirsche, Michael T1 - Enhanced DNS Message Compression - Optimizing mDNS/DNS-SD for the Use in 6LoWPANs T2 - Proceedings,9th IEEE International Workshop on Sensor Networks and Systems for Pervasive Computing 2013 (PerSeNS 2013), co-located with the 11th IEEE Conference on Pervasive Computing and Communication (PerCom 2013), San Diego, Calif., USA, 2013 Y1 - 2013 SN - 978-1-4673-5075-4 SN - 978-1-4673-5076-1 U6 - https://doi.org/10.1109/PerComW.2013.6529565 SP - 596 EP - 601 PB - IEEE ER - TY - CHAP A1 - Schuster, Franka A1 - Paul, Andreas A1 - König, Hartmut T1 - Towards Learning Normality for Anomaly Detection in Industrial Control Networks T2 - Proceedings of the 7th IFIP WG 6.6 International Conference on Autonomous Infrastructure, Management, and Security (AIMS 2013), Barcelona, Spain, June 25-28, 2013 Y1 - 2013 SN - 978-3-642-38997-9 SP - 61 EP - 72 PB - Heidleberg CY - Berlin [u.a.] ER - TY - CHAP A1 - Rietz, René A1 - Vogel, Michael A1 - Schuster, Franka A1 - König, Hartmut ED - Dietrich, Sven T1 - Parallelization of Network Intrusion Detection Systems under Attack Conditions T2 - Detection of Intrusions and Malware, and Vulnerability Assessment, 11th International Conference, DIMVA 2014, Egham, UK, July 10-11, 2014 Y1 - 2014 SN - 978-3-319-08508-1 SP - 172 EP - 191 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Mehner, Stefan A1 - Klauck, Ronny A1 - König, Hartmut ED - Makedon, Fillia ED - Betke, Margrit ED - Seif El-Nasr, Magy ED - Maglogiannis, Ilias T1 - Location-independent fall detection with smartphone T2 - The 6th International Conference on PErvasive Technologies Related to Assistive Environments, PETRA '13, Island of Rhodes, Greece, May 29-31, 2013 N2 - Due to demographic changes in developed industrial countries and a better medical care system, the number of elderly people who still live in their home environment is rapidly growing because there they feel more comfortable and independent as in a clinical environment or in a residential care home. The elderly often live alone and receive only irregular visits. Due to impaired physical skills the probability of falls significantly increases. The detection of falls is a crucial aspect in the care of elderly. Falls are often detected very late with severe consequential damages. There are existing approaches for automatic fall detection. They usually deploy special external devices. Elderly people often do not accept these devices because they expose their frailty. In this paper, we present a location-independent fall detection method implemented as a smartphone application for an inconspicuous use in nearly every situation of the daily life. The difficulty of our approach is in the low resolution range of integrated acceleration sensors and the limited energy supply of the smartphone. As solution, we apply a modular threshold-based algorithm which uses the acceleration sensor with moderate energy consumption. Its fall detection rate is in the average of current relevant research. Y1 - 2013 SN - 978-1-4503-1973-7 U6 - https://doi.org/10.1145/2504335.2504346 PB - ACM CY - New York, NY ER - TY - CHAP A1 - Gäbler, Jan A1 - Klauck, Ronny A1 - Pink, Mario A1 - König, Hartmut T1 - uBeeMe - a Platform to Enable Mobile Collaborative Applications T2 - Proceedings of the 9th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2013), Austin, Texas, USA, October, 2013 Y1 - 2013 SP - 188 EP - 196 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - König, Hartmut A1 - Gäbler, Jan A1 - Klauck, Ronny A1 - Pink, Mario A1 - Sprejz, Michael T1 - uBeeMe - A Platform for Mobile Collaborative Applications T2 - PIK - Praxis der Informationsverarbeitung und Kommunikation Y1 - 2013 U6 - https://doi.org/10.1515/pik-2012-0058 SN - 0930-5157 VL - 36 IS - 1 SP - S. 43 ER - TY - CHAP A1 - Gäbler, Jan A1 - König, Hartmut T1 - Enhancing Group Communication Systems with Mobility Support T2 - Proceedings of the 19th IEEE International Conference on Networks (ICON 2013), Singapore, December 2013 Y1 - 2014 SN - 978-1-4799-2085-3 SP - 342 EP - 347 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Pink, Mario A1 - Sprejz, Michael A1 - König, Hartmut T1 - A Coordinated Group Decision for Vertical Handovers in Heterogeneous Wireless Networks T2 - 2013 International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications, Bologna, Italy, November 11-13, 2013 N2 - Cooperation and interactions of mobile users is a characteristic feature of mobile collaborative applications. The users are located in different mobile communication networks or move in or among them, respectively. This requires horizontal and vertical handovers. The latter is required when the networks use different network technologies. Usually each mobile device independently chooses the most appropriate network for its purposes to switch to. In group-oriented applications this may lead to an uncoordinated network selection and as consequence to increased energy consumption. In this paper, we present a distributed vertical handover decision algorithm that coordinates the selection of the network among the mobile devices in order to ensure an optimal quality of service for the collaborative application and a low energy consumption of the involved mobile devices. The network selection is based on the calculation of a group benefit for each alternative network using the Simple Additive Weighting (SAW) algorithm. The feasibility of the algorithm is evaluated regarding varying group sizes and resource requirements. Y1 - 2013 U6 - https://doi.org/10.1109/Mobilware.2013.20 SP - 130 EP - 137 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Opitz, Stefanie Judith A1 - Todtenberg, Nicole A1 - König, Hartmut T1 - Mobile bandwidth prediction in the context of emergency medical service T2 - Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA '14) Y1 - 2014 UR - http://doi.acm.org/10.1145/2674396.2674411 SN - 978-1-4503-2746-6 U6 - https://doi.org/10.1145/2674396.2674411 PB - ACM CY - New York, NY ER - TY - GEN A1 - Gäbler, Jan A1 - König, Hartmut T1 - Moversight: a group communication protocol for mobile scenarios T2 - Telecommunication systems : modeling, analysis, design and managementversion N2 - The increasing mobility of Internet users and the growing need to collaborate with staff travelling on business belong to the key characteristics of the future Internet. Mobile collaborative applications require novel schemes for group communication that actively support collaborations in wireless scenarios. An intrinsic problem of collaborations in wireless scenarios is the temporary connection loss with the group due to user mobility and network issues. Existing group communication protocols do not sufficiently support this situation. In this paper, we present a new peer-to-peer group communication protocol, called Moversight, that was specifically designed to support closed group cooperation in mobile environments with varying churn rates. It applies a new group communication paradigm, called mobile optimistic virtual synchrony, to handle churn-related peer failures. It enhances the virtual synchrony paradigm for mobile scenarios. The paper introduces the paradigm and describes the main protocol features of Moversight. Finally we present simulation results to demonstrate the applicability of the protocol. KW - Mobile group communication, Mobility support, Mobile collaborative applications, Closed groups, Group communication system, Virtual synchrony Y1 - 2016 UR - http://link.springer.com/article/10.1007%2Fs11235-015-0062-1 U6 - https://doi.org/10.1007/s11235-015-0062-1 SN - 1572-9451 SN - 1018-4864 VL - 61 IS - 4 SP - 695 EP - 716 ER - TY - GEN A1 - Klauck, Ronny A1 - Kirsche, Michael T1 - Combining Mobile XMPP Entities and Cloud Services for Collaborative Post-Disaster Management in Hybrid Network Environments T2 - Mobile Networks and Applications : the journal of special issues on mobility of systems, users, data and computing N2 - Crises such as the Fukushima incident in Japan showed the demand for flexible and easy-to-use monitoring and communication systems to support post-disaster management (i.e. the organization of actions in the follow-up of disasters), especially when critical infrastructure is affected. Such systems can effectively only be realized with a merging of various device classes and the integration of mobile actors and wireless communication technologies to provide the necessary flexibility. This article introduces a system design that combines portable hand-held devices as well as autonomous sensors through XMPP with the flexibility of cloud services to support post-disaster management. This combination provides the communication between the different involved parties (e.g., rescue teams, relief forces, NGOs) and enables a global view on sensed data through the use of cloud-based storage and analysis services. Along with a discussion about requirements and a description of appropriate solutions and initial evaluations, we present new insights on the practical appliance of XMPP and potential enhancements for XMPP-based real life collaboration applications in hybrid (ad hoc and infrastructure) networkscenarios.We also show that resource constrained devices can run the XMPP protocol to extend smartphones with sensors or to connect different device classes in a seamless way. Y1 - 2013 UR - http://link.springer.com/article/10.1007%2Fs11036-012-0391-1 U6 - https://doi.org/10.1007/s11036-012-0391-1 SN - 1383-469X SN - 1572-8153 VL - 18 IS - 2 SP - 253 EP - 270 ER - TY - CHAP A1 - Schuster, Daniel A1 - Grubitzsch, Philipp A1 - Renzel, Dominik A1 - Klauck, Ronny A1 - Kirsche, Michael T1 - Global-scale Federated Access to Smart Objects Using XMPP T2 - 2014 IEEE International Conference on Internet of Things (iThings 2014), and IEEE green computing and communications (GreenCom 2014) and IEEE cyber, physical and social computing (CPSCom 2014), Taipei, Taiwan, 1 - 3 September 2014 N2 - Communication with smart objects currently only works in isolated, sometimes even proprietary islands. This lack of interoperability limits the value of smart objects connected to the Internet of Things (IoT). We propose to use the eXtensible Messaging and Presence Protocol (XMPP) to connect IoT islands. XMPP is inherently federated, secure, globally scalable and designed for collaboration. We use XMPP Multi-User Chat (MUC) to build a secure and accessible platform for sensor data exchange between organizations. We demonstrate a scenario of three distributed and interconnected XMPP-driven sites, whereas different client types access sensor data from all sites. Our evaluation results confirm that the architectural pattern presented in this work can easily be used in any XMPP-based system without the need to enhance or to extend the standards. Y1 - 2014 UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7059660 SN - 978-1-4799-5967-9 SP - 185 EP - 192 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Kirsche, Michael A1 - Schnurbusch, Matti T1 - A new IEEE 802.15.4 Simulation Model for OMNeT++ / INET T2 - Proceedings of the 1st International OMNeT++ Community Summit (OMNeT 2014) N2 - This paper introduces a new IEEE 802.15.4 simulation model for OMNeT++ / INET. 802.15.4 is an important underlying standard for wireless sensor networks and Internet of Things scenarios. The presented implementation is designed to be compatible with OMNeT++ 4.x and INET 2.x and laid-out to be expandable for newer revisions of the 802.15.4 standard. Y1 - 2014 UR - http://arxiv.org/abs/1409.1177 ER - TY - CHAP A1 - Kirsche, Michael A1 - Kremmer, Roman T1 - uIP Support for the Network Simulation Cradle T2 - Proceedings of the 2nd International OMNeT++ Community Summit (OMNeT 2015) N2 - We introduce the ongoing integration of Contiki’s uIP stack into the OMNeT++ port of the Network Simulation Cradle (NSC). The NSC utilizes code from real world stack implementations and allows for an accurate simulation and comparison of different TCP/IP stacks and a validation of thereby connected simulation models. uIP(v6) provides resource-constrained devices with an RFC-compliant TCP/IP stack and promotes the use of IPv6 in the vastly growing field of Internet of Things scenarios. This work-in-progress report discusses our motivation to integrate uIP into the NSC, our chosen approach and possible use cases for the simulation of uIP in OMNeT++. Y1 - 2015 UR - http://arxiv.org/abs/1509.03101 ER - TY - CHAP A1 - Dacier, Marc C. A1 - Kargl, Frank A1 - König, Hartmut A1 - Valdes, Alfonso T1 - Network Attack Detection and Defense: Securing Industrial Control Systems for Critical Infrastructures T2 - Report from Dagstuhl Seminar 14292, 13. – 16. Juli 2014, N2 - This report documents the program and the outcomes of Dagstuhl Seminar 14292 “Network Attack Detection and Defense: Securing Industrial Control Systems for Critical Infrastructures”. The main objective of the seminar was to discuss new approaches and ideas for securing industrial control systems. It is the sequel of several previous Dagstuhl seminars: (1) the series “Network Attack Detection and Defense” held in 2008 and 2012, and (2) the Dagstuhl seminar “Securing Critical Infrastructures from Targeted Attacks”, held in 2012. At the seminar, which brought together members from academia an industry, appropriate methods for detecting attacks on industrial control systems (ICSs) and for limiting the impact on the physical components were considered. A central question was whether and how reactive security mechanisms can be made more ICS- and process-aware. To some extent it seems possible to adopt existing security approaches from other areas (e. g., conventional networks, embedded systems, or sensor networks). The main question is whether adopting these approaches is sufficient to reach the desired level of security for ICSs. Detecting attacks to the physical components and appropriate reactions to attacks are new aspects that need to be considered as well. The main result of the seminar is a list of recommendations for future directions in ICS security that is presented in this report. KW - Security, Intrusion Detection, Critical Infrastructures, Industrial Control Systems, SCADA, Vulnerability Analysis, Malware Assessment, Attack Response and Countermeasures Y1 - 2014 UR - http://www.dagstuhl.de/14292 U6 - https://doi.org/10.4230/DagRep.4.7.62 SP - 62 EP - 79 PB - Dagstuhl Publishing CY - Schloss Dagstuhl, Wadern ER -