This file was created by the TYPO3 extension bib --- Timezone: CEST Creation date: 2024-04-16 Creation time: 10-14-01 --- Number of references 43 inproceedings 2011-wirtz-kaleidoscope Cooperative Wi-Fi-Sharing: Encouraging Fair Play 2011 12 14 mobile_access fileadmin/papers/2011/2011-wirtz-kaleidoscope.pdf Online
ITU
Proceedings of the ITU-T Kaleidoscope Event 2011, Cape Town, South Africa Cape Town, South Africa ITU-T Kaleidoscope: The fully networked human? 2011-12-12 en 978-92-61-13651-2 1 HannoWirtz RenéHummen NicolaiViol TobiasHeer Mónica AlejandraLora Girón KlausWehrle
inproceedings 2011-12-conext-schmidt-refector Refector: Heuristic Header Error Recovery for Error-Tolerant Transmissions 2011 12 6 1--12 refector fileadmin/papers/2011/2011-schmidt-refector-conext.pdf Online ACM
New York, NY, USA
Proceedings of the 7th International Conference on emerging Networking EXperiments and Technologies (CoNEXT), Tokyo, Japan Tokyo, Japan 7th ACM International Conference on emerging Networking EXperiments and Technologies (CoNEXT) 6-9 December, 2011 en 978-1-4503-1041-3 10.1145/2079296.2079318 1 FlorianSchmidt Muhammad HamadAlizai IsmetAktas KlausWehrle
inproceedings 2011-globecom-bitsch-geodtn geoDTN: Geographic Routing in Disruption Tolerant Networks 2011 12 5 1 -- 5 In this paper we present a disruption tolerant routing algorithm based on geographic location information, which improves upon the hop count compared to the current state of the art by up to a factor of three in large scale human networks. Leveraging only the history of geographic movement patterns in the two-hop neighborhood, our algorithm is able to perform well in the absence of knowledge of social interaction between nodes and without detailed future schedule information. Representing previously visited locations as probability distributions encoded in an efficient vector, we formalize a heuristic for efficiently forwarding messages in disruption tolerant networks, implement a framework for comparing our approach with the state of the art, and evaluate key metrics, such as hop count and delivery rate, as well as energy consumption and battery depletion fairness on real world data. We are able to outperform the state of the art in human mobility based networks considerably in terms of energy usage per node, thereby extending data network availability further into areas devoid of otherwise necessary communication infrastructure. fileadmin/papers/2011/2011-GlobeCom-bitsch-geoDTN.pdf Online
Piscataway, NJ, USA
IEEE GLOBECOM 2011 - Next Generation Networking Symposium (GC'11 - NGN), Houston, Texas, USA IEEE Houston, Texas, USA IEEE GLOBECOM 2011 - Next Generation Networking Symposium (GC'11 - NGN) 5-9 December 2011 en 978-1-4244-9268-8 1930-529X 1 Jó AgilaBitsch Link DanielSchmitz KlausWehrle
inproceedings Varj1112:Secure Secure Resolution of <prt>End-Host</prt> Identifiers for Mobile Clients 2011 12 5 Many efforts of the network research community focus on the introduction ofa new identifier to relieve the IP address from its dual role of end-hostidentifier and routable locator. This identifier-locator split introduces anew identifier between human readable domain names and routable IPaddresses. Mapping between identifiers and locators requires additionalname mapping mechanisms because their relation is not trivial. Despite itspopularity and efficiency, the DNS system is not a perfect choice forperforming this mapping because identifiers are not hierarchicallystructured and mappings are frequently updated by users. In this paper wediscuss the features needed to resolve flat identifiers to locators in asecure manner. In particular, we focus on the features and the performancethat identifier-locator split protocols require from a mapping system. Tothis end, we consider a mapping system for an identifier-locator splitbased mobility solution and evaluate its performance. IndexTerms—Identifier-locator split, Name resolution, Host Identity Protocol,Security, DNS, DHT, OpenDHT DHT; DNS; Host Identity Protocol; Security; Identifier-locator split; Nameresolution fileadmin/papers/2011/2011-varjonen-secure.pdf Online IEEE
Piscataway, NJ, USA
IEEE GLOBECOM 2011 - Next Generation Networking Symposium (GC'11 - NGN), Awarded the NGN Best Paper Award accepted en 978-1-4244-9268-8 1930-529X 1 SamuVarjonen TobiasHeer KennethRimey AndreiGurtov
techreport 2011-draft-garcia-core-security-03 Security Considerations in the IP-based Internet of Things 2011 10 31 draft-garcia-core-security-03 A direct interpretation of the Internet of Things concept refers to the usage of standard Internet protocols to allow for human-to-thing or thing-to-thing communication. Although the security needs are well-recognized, it is still not fully clear how existing IP-based security protocols can be applied to this new setting. This Internet-Draft first provides an overview of security architecture, its deployment model and general security needs in the context of the lifecycle of a thing. Then, it presents challenges and requirements for the successful roll-out of new applications and usage of standard IP-based security protocols when applied to get a functional Internet of Things. Work in progress iotsec; ietf http://tools.ietf.org/html/draft-garcia-core-security-03 Online Internet Engineering Task Force Internet-Draft en OscarGarcia-Morchon Sye LoongKeoh Sandeep S.Kumar RenéHummen RenéStruik inproceedings Dombrowski2011LCN Hard Real-Time Wireless Medium Access in Action: Stop the Guillotine Within a Millisecond! 2011 10 4 1--3 http://www.ieeelcn.org/prior/LCN36/lcn36demos/lcn-demo2011_dombrowski.pdf http://www.ieeelcn.org/prior/LCN36/lcn36demos.html Proc. of Local Computer Networks Conference, Demonstrations, (LCN'11) Bonn, Germany 36th IEEE Conference on Local Computer Networks (LCN) 04/10/2011 1 ChristianDombrowski JamesGross article 2011-heer-iot-journal Security Challenges in the IP-based Internet of Things Springer Wireless Personal Communications Journal 2011 10 61 3 527-542 A direct interpretation of the term Internet of Things refers to the use of standard Internet protocols for the human-to-thing or thing-to-thing communication in embedded networks. Although the security needs are well-recognized in this domain, it is still not fully understood how existing IP security protocols and architectures can be deployed. In this paper, we discuss the applicability and limitations of existing Internet protocols and security architectures in the context of the Internet of Things. First, we give an overview of the deployment model and general security needs. We then present challenges and requirements for IP-based security solutions and highlight specific technical limitations of standard IP security protocols. iotsec fileadmin/papers/2011/2011-heer-iot-challenges.pdf Online Springer
Netherlands
en 0929-6212 10.1007/s11277-011-0385-5 1 TobiasHeer OscarGarcia-Morchon RenéHummen Sye LoongKeoh Sandeep S.Kumar KlausWehrle
inproceedings 2011-extremecom-bitsch-neighbordiscovery Perfect Difference Sets for Neighbor Discovery 2011 9 26 1--6 We present an energy efficient neighbor discovery framework that enables Linux and TinyOS based systems to discover and connect to neighbors via IEEE 802.11 and IEEE 802.15.4, which are only available sporadically. Using quorum schemes, we schedule on and off times of the wireless transmitters, to guarantee mutual discovery with minimum power given a specific latency requirement. Neighbor discovery is fundamental to intermittently connected networks, such as disruption and delay tolerant networks and optimizing it, can lead to significant overall energy savings. Using perfect difference sets, our results indicate that we reduce the latency by up to 10 times at a duty cycle of 2% compared to the state of the art. We further define and characterize our neighbor discovery scheme with respect to fairness for asymmetric energy scenarios. Using these results, we allow energy-harvesting applications to adjust neighbor discovery based on their current energy requirements as a well defined trade-off. Neighbor Discovery; Sporadic Connectivity; Wireless Networks fileadmin/papers/2011/2011-ExtremeCom-bitsch-NeighborDiscovery.pdf http://www.cl.cam.ac.uk/~fb375/extremecom/2011/program.html http://dl.acm.org/citation.cfm?id=2414398&CFID=194814085&CFTOKEN=73001357 Online Hui, Pan and Lindgren, Anders ACM Proceedings of the 3rd Extreme Conference of Communication (ExtremeCom 2011), Manaus, Brazil Manaus, Brazil ExtremeCom 2011 26-30 September 2011 en 978-1-4503-1079-6 1 Jó AgilaBitsch Link ChristophWollgarten StefanSchupp KlausWehrle inproceedings 2011-wirtz-chants Establishing Mobile Ad-Hoc Networks in 802.11 Infrastructure Mode 2011 9 23 fileadmin/papers/2011/2011-wirtz-chants.pdf Online ACM
New York, NY, USA
Proceedings of the ACM MobiCom Workshop on Challenged Networks (Chants 2011), Las Vegas, NV, USA Las Vegas, NV, USA ACM MobiCom Workshop on Challenged Networks (Chants 2011) 2011-09-23 en 978-1-4503-0870-0 10.1145/2030652.2030666 1 HannoWirtz TobiasHeer RobertBackhaus KlausWehrle
inproceedings 2011-ipin-bitsch-footpath-long FootPath: Accurate Map-based Indoor Navigation Using Smartphones 2011 9 21 1--8 We present FootPath, a self-contained, map-based indoor navigation system. Using only the accelerometer and the compass readily available in modern smartphones we accurately localize a user on her route, and provide her with turn-by-turn instructions to her destination. To compensate for inaccuracies in step detection and heading estimation, we match the detected steps onto the expected route using sequence alignment algorithms from the field of bioinformatics. As our solution integrates well with OpenStreetMap, it allows painless and cost-efficient collaborative deployment, without the need for additional infrastructure. footpath fileadmin/papers/2011/2011-IPIN-bitsch-footpath-long.pdf http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6071934&tag=1 Online IEEE Proceedings of the 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Guimaraes, Portugal Guimarães, Portugal 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN) 21-23 September 2011 en 978-1-4577-1803-8 http://dx.doi.org/10.1109/IPIN.2011.6071934 1 Jó AgilaBitsch Link PaulSmith NicolaiViol KlausWehrle inproceedings 2011-ipin-bitsch-footpath FootPath: Accurate Map-based Indoor Navigation Using Smartphones (short paper) 2011 9 21 1--4 We present FootPath, a self-contained, map-based indoor navigation system. Using only the accelerometer and the compass readily available in modern smartphones we accurately localize a user on her route, and provide her with turn-by-turn instructions to her destination. To compensate for inaccuracies in step detection and heading estimation, we match the de- tected steps onto the expected route using sequence alignment algorithms from the field of bioinformatics. As our solution integrates well with OpenStreetMap, it allows painless and cost-efficient collaborative deployment, without the need for additional infrastructure. short paper (long paper is also available) footpath fileadmin/papers/2011/2011-IPIN-bitsch-footpath.pdf http://ipin2011.dsi.uminho.pt/PDFs/Shortpaper/17_Short_Paper.pdf fileadmin/papers/2011/2011-IPIN-bitsch-footpath-slides.pdf Online IEEE Proceedings of the 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Guimaraes, Portugal Guimarães, Portugal 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN) 21-23 September 2011 en 978-972-8692-63-6 1 Jó AgilaBitsch Link PaulSmith KlausWehrle inproceedings 2011-wintech-wirtz Demo: Establishing Mobile Ad-Hoc Networks in 802.11 Infrastructure Mode 2011 9 19 89-90 Mobile Ad-Hoc Networks (MANETs) rely on the 802.11 ad- hoc mode to establish communication with nearby peers. In practice, this makes MANETs hard to realize. While 802.11-compliant mobile devices implement the ad-hoc mode on the hardware layer, the software layer typically does not implement support for ad-hoc networking in terms of ad-hoc routing and name resolution protocols. Modern mobile operating systems, such as Android and iOS, even hide the inherent ad-hoc functionality of the wireless card through restrictions in the OS. In contrast to this, support for the 802.11 infrastructure mode is a commodity. We propose establishing ad-hoc networks using the 802.11 infrastructure mode. In MA-Fi (Mobile Ad-Hoc Wi-Fi), a small core of mobile router nodes (RONs) provides infrastruc-ture mode network access to mobile station nodes (STANs). As RONs also act as a station in infrastructure networks of other RONs, MA-Fi achieves multi-hop communication between RON and STAN devices in the overall network. We show the creation and operation of mobile ad-hoc networks using MA-Fi. We focus on mobility of RONs and STANs as well as topology control in the overall network. fileadmin/papers/2011/2011-wirtz-wintech.pdf Online ACM
New York, NY, USA
Proceedings of the Sixth ACM International Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization (WiNTECH 2011), Las Vegas, NV, USA Las Vegas, Nevada, USA The Sixth ACM International Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization 2011-09-19 en 978-1-4503-0867-0 10.1145/2030718.2030737 1 HannoWirtz RobertBackhaus RenéHummen KlausWehrle
inproceedings VaegsABW2011 Efficient Power Management Using Out-of-Band Signaling 2011 9 16 77-80 A tremendous amount of energy is wasted today, because computing devices are left running all the time even though they are needed only sporadically. Especially in office environments many devices (e.g., printers) are very rarely turned off, because they need to be available from time to time and because it is inconvenient having to switch them on and off manually. Existing solutions, such as Wake-on-LAN (WoL), provide support for managing the power consumption of the network devices remotely using an always-on data channel. However, these solutions are inefficient, because power to the network interface has to be maintained even when the host system is asleep just to ensure remote accessibility. We propose a Wireless Sensor Network (WSN) based out-of-band signaling architecture for network interfaces which minimizes the systems’ power consumption during the large idle periods when nobody is using them. This is done by separating the data and control channels on the Internet-enabled devices using a low-power out-of-band signaling channel based on battery driven, energy scavenging devices. Unlike existing solutions, which only allow parts of the system to go in sleep modes, our architecture allows the whole system, including the main power supply, to be shut down. Our initial investigation indicates a significant reduction in energy consumption of devices during idle times compared to the existing in-band signaling mechanisms such as WoL. Energy Saving, Wireless Sensor Network, Out-of-Band Signalling https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-vaegs-fgsn-ecocom.pdf Online Proceedings of the 10th GI/ITG KuVS Fachgespräch Drahtlose Sensornetze (FGSN), Paderborn, Germany RWTH Aachen University Paderborn, Germany 10th GI/ITG KuVS Fachgespräch Drahtlose Sensornetze (FGSN11) September 15-16, 2011 en 1 TobiasVaegs Muhammad HamadAlizai Jó AgilaBitsch Link KlausWehrle conference 2011-lora-QoMEX-Cooperative-QoE-Abstract QoE in Collaborative Wireless Local Area Networks 2011 9 8 One of the major’s contributions of Collaborative Wi-Fi Networks is to provide a widely distributed Wi-Fi access network in a low cost and ubiquitous way. In order to promote the participation of more actors (both Wi-Fi providers and users) and the success of this kind of emerging solutions is important to satisfy the expectations that the user has regarding the network and the services, increasing the Quality of User Experience (QoE). As one might expect the wireless nature of the Collaborative Wi-Fi Networks imposes a set of challenges those have to be addresses in order to guarantee the QoE that the users are expecting. In this talk, we outline research challenges encountered to improve the overall experience of the user of Collaborative Wi-Fi Networks. Our approach is to study the effect of the user´s perception firstly modifying the way that the user picks the Access Point during the Wireless Association. We highlight how an association based on the selection of the Access Point with the largest RSSI does not guarantee the satisfaction of the expectations of the users. Second, we explain how avoiding duplicate data packets downloaded in the same BSS, improving the throughput of the BSS and the QoE. /fileadmin/papers/2011/2011-Lora-QoMex-Abstract.pdf Online Third International Workshop on Quality of Multimedia Experience - QoMEX 2011, Mechelen, Belgium Mechelen, Belgium Third International Workshop on Quality of Multimedia Experience - QoMEX 2011 September 7 - 9, 2011 Abstract en 978-1-4577-1335-4 1 Mónica AlejandraLora Girón inproceedings 2011-wintech-alizai-tinywifi TinyWifi: Making Network Protocol Evaluation Portable Across Multiple Phy-Link Layers 2011 9 19-27 tinywifi fileadmin/papers/2011/2010-09-tinywifi-alizai-wintech.pdf Online ACM
New York, NY, USA
Proceedings of the Sixth ACM International Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization (WiNTECH ), Las Vegas, NV, USA Las Vegas, NV, USA The 17th Annual International Conference on Mobile Computing and Networking September 2011 en 978-1-4503-0867-0 10.1145/2030718.2030725 1 Muhammad HamadAlizai HannoWirtz BernhardKirchen TobiasVaegs OmprakashGnawali KlausWehrle
inproceedings 2011-kunz-mascots-performance-prediction Predicting Runtime Performance Bounds of Expanded Parallel Discrete Event Simulations 2011 7 25 359 - 368 horizon fileadmin/papers/2011/2011-kunz-performance-prediction-mascots.pdf Online IEEE Computer Society
Los Alamitos, CA, USA
Proceedings of the 19th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS'11), Singapore Singapore 19th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems July 25-17, 2011 en 978-1-4577-0468-0 1526-7539 10.1109/MASCOTS.2011.15 1 GeorgKunz SimonTenbusch JamesGross KlausWehrle
techreport 2011-draft-garcia-core-security-02 Security Considerations in the IP-based Internet of Things 2011 7 11 draft-garcia-core-security-02 A direct interpretation of the Internet of Things concept refers to the usage of standard Internet protocols to allow for human-to-thing or thing-to-thing communication. Although the security needs are well-recognized, it is still not fully clear how existing IP-based security protocols can be applied to this new setting. This Internet-Draft first provides an overview of security architecture, its deployment model and general security needs in the context of the lifecycle of a thing. Then, it presents challenges and requirements for the successful roll-out of new applications and usage of standard IP-based security protocols when applied to get a functional Internet of Things. Work in progress iotsec; ietf http://tools.ietf.org/html/draft-garcia-core-security-02 Online Internet Engineering Task Force Internet-Draft en OscarGarcia-Morchon Sye LoongKeoh Sandeep S.Kumar RenéHummen RenéStruik inproceedings 2011-hummen-pisa-demo PISA-SA - Security and Mobility in a Collaborative Muni-Fi (Demo Abstract) 2011 6 15 15 35--36 mobile_access fileadmin/papers/2011/2011-hummen-wisec-pisa-sa-demo.pdf Online ACM
New York, NY, USA
Proceedings of the fourth ACM Conference on Wireless Network Security, Hamburg, Germany Hamburg, Germany Wireless Network Security 2011 (WiSec 2011) en 1559-1662 10.1145/2073290.2073297 1 RenéHummen HannoWirtz NicolaiViol TobiasHeer KlausWehrle
inproceedings 2011-icdcs-sasnauskas-sde Scalable Symbolic Execution of Distributed Systems 2011 6 333-342 Recent advances in symbolic execution have proposed a number of promising solutions to automatically achieve high-coverage and explore non-determinism during testing. This attractive testing technique of unmodified software assists developers with concrete inputs and deterministic schedules to analyze erroneous program paths. Being able to handle complex systems' software, these tools only consider single software instances and not their distributed execution which forms the core of distributed systems. The step to symbolic distributed execution is however steep, posing two core challenges: (1) additional state growth and (2) the state intra-dependencies resulting from communication. In this paper, we present SDE—a novel approach enabling scalable symbolic execution of distributed systems. The key contribution of our work is two-fold. First, we generalize the problem space of SDE and develop an algorithm significantly eliminating redundant states during testing. The key idea is to benefit from the nodes' local communication minimizing the number of states representing the distributed execution. Second, we demonstrate the practical applicability of SDE in testing with three sensornet scenarios running Contiki OS. kleenet fileadmin/papers/2011/2011-06-icdcs-sasnauskas-sde.pdf Druck IEEE Computer Society
Los Alamitos, CA, USA
Proceedings of the 31st IEEE International Conference on Distributed Computing Systems (ICDCS 2011), June 2011, Minneapolis, MN, USA en 978-0-7695-4364-2 1063-6927 10.1109/ICDCS.2011.28 1 RaimondasSasnauskas OscarSoria Dustmann Benjamin LucienKaminski CarstenWeise StefanKowalewski KlausWehrle
inproceedings 2011-iscc-alizai-ble Efficient Online Estimation of Bursty Wireless Links 2011 6 fileadmin/papers/2011/2011-alizai-iscc-ble.pdf Online IEEE Computer Society
Los Alamitos, CA, USA
16th IEEE Symposium on Computers and Communications (ISCC), Kerkyra, Greece Kerkyra, Greece en 978-1-4577-0678-3 10.1109/ISCC.2011.5983839 1 Muhammad HamadAlizai HannoWirtz GeorgKunz BenjaminGrap KlausWehrle
techreport rfc6253 <prt>Host Identity Protocol Certificates</prt> 2011 5 rfc6253 The Certificate (CERT) parameter is a container for digital certificates. It is used for carrying these certificates in Host Identity Protocol (HIP) control packets. This document specifies the CERT parameter and the error signaling in case of a failed verification. Additionally, this document specifies the representations of Host Identity Tags in X.509 version 3 (v3) and Simple Public Key Infrastructure (SPKI) certificates. The concrete use of certificates, including how certificates are obtained, requested, and which actions are taken upon successful or failed verification, is specific to the scenario in which the certificates are used. Hence, the definition of these scenario- specific aspects is left to the documents that use the CERT parameter. mobile_access http://www.ietf.org/rfc/rfc6253.txt IETF RFC 6253 (Experimental) Request for Comments Internet Engineering Task Force Internet Engineering Task Force Request For Commments (Experimental Standard) 1 TobiasHeer SamuVarjonen inproceedings Dombrowski2011RealWIN Reducing Outage Probability Over Wireless Channels Under Hard Real-time Constraints 2011 4 11 1 -6 Proc. of Workshop on Real-Time Wireless For Industrial Applications (RealWIN'11) 1 ChristianDombrowski JamesGross inproceedings 2011-ipsn-alizai-pad Probabilistic Addressing: Stable Addresses in Unstable Wireless Networks 2011 4 fileadmin/papers/2011/2011-ipsn-alizai-pad.pdf Online ACM
New York, NY, USA
Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2011), Chicago, IL, USA Chicago, IL, USA en 978-1-60558-988-6 1 Muhammad HamadAlizai TobiasVaegs OlafLandsiedel StefanGötz Jó AgilaBitsch Link KlausWehrle
inproceedings 2011-nsdi-slicetime-weingaertner SliceTime: A platform for scalable and accurate network emulation 2011 3 30 https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-weingaertner-nsdi-slicetime-camera_ready_14P.pdf Online USENIX
Berkeley, CA, USA
Proceedings of the 8th USENIX Symposium on Networked Systems Design and Implementation (NSDI '11), Boston, MA, USA Boston, Massachusetts en 1 EliasWeingaertner FlorianSchmidt Hendrikvom Lehn TobiasHeer KlausWehrle
article 22011-itag-samad-cadplus CAD+: Detecting Colluding Nodes in Gray Hole Attacks Lecture Notes in Informatics GI-Edition 2011 3 25 S-10 Informatiktage 2011 279-282 Druck Köllen Verlag GmbH
Bonn, Germany
Gesellschaft für Informatik (GI) S-10 en 978-3-88579- 444-8 1614-3213 ShankarKaruppayah FahadSamad
inproceedings OttHLVK2011 Floating Content: Information Sharing in Urban Areas 2011 3 21 Content sharing using personal web pages, blogs, or online social networks is a common means for people to maintain contact with their friends, colleagues, and acquaintances. While such means are essential to overcome distances, using infrastructure services for location-based services may not be desirable. In this paper, we analyze a fully distributed variant of an ephemeral content sharing service, solely dependent on the mobile devices in the vicinity using principles of opportunistic networking. The net result is a best effort service for floating content in which: 1) information dissemination is geographically limited; 2) the lifetime and spreading of information depends on interested nodes being available; 3) content can only be created and distributed locally; and 4) content can only be added, but not explicitly deleted. First we present our system design and summarize its analytical modeling. Then we perform extensive evaluation for a map-based mobility model in downtown Helsinki to assess the operational range for floating content, which, at the same time also validate the analytical results obtained for a more abstract model of the system. https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-percom-vaegs-floatingcontent.pdf Online IEEE
Piscataway, NJ, USA
Proceedings of the 9th IEEE International Conference on Pervasive Computing and Communications (PerCom 2011), Seattle, WA, USA Seattle, USA 9th IEEE International Conference on Pervasive Computing and Communications March 21 - 25, 2011 en 978-1-4244-9529-0 1 JörgOtt EsaHyytiä PasiLassila TobiasVaegs JussiKangasharju
inproceedings 2011-kunz-omnetpp-horizon Runtime Efficient Event Scheduling in Multi-threaded Network Simulation 2011 3 21 359-366 Developing an efficient parallel simulation framework for multiprocessor systems is hard. A primary concern is the considerable amount of parallelization overhead imposed on the event handling routines of the simulation framework. Besides more complex event scheduling algorithms, the main sources of overhead are thread synchronization and locking of shared data structures. As a result, the overhead of parallelization may easily outweigh the benefits of parallelization in comparison to classic sequential simulation. We introduce two efficient event handling schemes based on our parallel-simulation extension Horizon for the OMNeT++ simulator.First, we present a \emph{push-based event handling scheme} to minimize the overhead of thread synchronization and locking. Second, we complement this scheme with a novel \emph{event scheduling algorithm} that significantly reduces the overhead of parallel event scheduling. Lastly, we prove the correctness of our scheduling algorithm. Our evaluation reveals a total reduction in the event handling overhead of up to 16x when combining both schemes. horizon fileadmin/papers/2011/2011-kunz-horizon-omnetworkshop.pdf Online ICST
Brussels, Belgium
Proceedings of the 4th International Workshop on OMNeT++ (OMNeT++'11), Barcelona, Spain Barcelona, Spain 4th International Workshop on OMNeT++ (OMNeT++'11) March 21, 2011 en 978-1-936968-00-8 10.4108/icst.simutools.2011.245504 1 GeorgKunz MirkoStoffers JamesGross KlausWehrle
techreport 2011-draft-garcia-core-security-01 Security Considerations in the IP-based Internet of Things 2011 3 14 draft-garcia-core-security-01 A direct interpretation of the Internet of Things concept refers to the usage of standard Internet protocols to allow for human-to-thing or thing-to-thing communication. Although the security needs are well-recognized, it is still not fully clear how existing IP-based security protocols can be applied to this new setting. This Internet-Draft first provides an overview of security architecture, its deployment model and general security needs in the context of the lifecycle of a thing. Then, it presents challenges and requirements for the successful roll-out of new applications and usage of standard IP-based security protocols when applied to get a functional Internet of Things. Work in progress iotsec; ietf http://tools.ietf.org/html/draft-garcia-core-security-01 Online Internet Engineering Task Force Internet-Draft en OscarGarcia-Morchon Sye LoongKeoh Sandeep S.Kumar RenéHummen RenéStruik techreport 2011-draft-garcia-core-security-00 Security Considerations in the IP-based Internet of Things 2011 3 7 draft-garcia-core-security-00 A direct interpretation of the Internet of Things concept refers to the usage of standard Internet protocols to allow for human-to-thing or thing-to-thing communication. Although the security needs are well-recognized, it is still not fully clear how existing IP-based security protocols can be applied to this new setting. This Internet-Draft first provides an overview of security architecture, its deployment model and general security needs in the context of the lifecycle of a thing. Then, it presents challenges and requirements for the successful roll-out of new applications and usage of standard IP-based security protocols when applied to get a functional Internet of Things. Work in progress iotsec; ietf http://tools.ietf.org/html/draft-garcia-core-security-00 Online Internet Engineering Task Force Internet-Draft en OscarGarcia-Morchon Sye LoongKeoh Sandeep S.Kumar RenéHummen RenéStruik article 2011-03-Zimmermann IP address assignment in wireless mesh networks Wireless Communications and Mobile Computing 2011 3 11 3 321-337 Online John Wiley & Sons Ltd.
Hoboken, NJ, USA
en 10.1002/wcm.982 1 AlexanderZimmermann ArndHannemann BenjaminSchleinzer
inproceedings 2011-weingaertner-device-driver-enabled Device-driver enabled Wireless Network Emulation 2011 3 https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-weingaertner-simutools-wifi-emu_camera-ready.pdf Online ICST
Brussels, Belgium
Proceedings ot the4th International ICST Conference on Simulation Tools and Techniques (SIMUTools 2011) Proceedings of the 4th International ICST Conference on Simulation Tools and Techniques (SIMUTools 2011), Barcelona, Spain Barcelona, Spain accepted en 978-1-936968-00-8 1 EliasWeingaertner Hendrikvom Lehn KlausWehrle
poster 2011-03-vomLehn-NSDI-PrivacyOnWeb Work in Progress: Uncovering the Privacy Implications of Web Usage [Poster] 2011 3 poster and abstract fileadmin/papers/2011/2011-03-vomLehn-NSDI-PrivacyOnWeb.pdf Online 8th USENIX Symposium on Networked Systems Design and Implementation (NSDI '11), Boston, MA, USA Usenix Boston, MA, USA NSDI March 30 – April 1, 2011 accepted en 1 Hendrikvom Lehn Jó AgilaBitsch Link KlausWehrle article 2011-kai-JITSR Project Report: Standardising the Internet of Things – What the Experts Think Int. J. on IT Standards & Standardisation Research 2011 1 9 1 fileadmin/papers/2011/2011-kai-JITSR.pdf print IGI Global
Hershey, PA, US
1539-3062 1 KaiJakobs ThomasWagner KaiReimers
article 2011-kai-PIK Koordination und Kooperation in der ICT Standardisierung Praxis der Informations- und Kommunikationstechnik 2011 1 34 11 fileadmin/papers/2011/2011-kai-PiK.pdf print De Gruyter
Berlin, DE
KaiJakobs
techreport rfc5201-bis-04 <prt>Host Identity Protocol Version 2</prt> 2011 1 1 draft-ietf-hip-rfc5201-bis-04.txt <prt>expires: July 24, 2011 (work in progress)</prt> mobile_access http://tools.ietf.org/html/draft-ietf-hip-rfc5201-bis-04 Online <prt>IETF Trust</prt> An online version is available at: http://tools.ietf.org/html/draft-ietf-hip-rfc5201-bis-04 Internet Drafts <prt>Internet Engineering Task Force</prt> Internet Engineering Task Force en 1 RobertMoskowitz PetriJokela Thomas R.Henderson TobiasHeer techreport draft-ietf-hip-cert-08 <prt>Host Identity Protocol Certificates</prt> 2011 1 1 draft-ietf-hip-cert-08.txt <prt>expires: July 22, 2011 (work in progress)</prt> http://tools.ietf.org/html/draft-ietf-hip-cert-08 Online <prt>IETF Trust</prt> An online version is available at: http://tools.ietf.org/html/draft-ietf-hip-cert-08 Internet Drafts <prt>Internet Engineering Task Force</prt> Internet Engineering Task Force en 1 TobiasHeer SamuVarjonen techreport draft-ietf-hip-cert-07 <prt>Host Identity Protocol Certificates</prt> 2011 1 1 draft-ietf-hip-cert-07.txt <prt>expires: July 16, 2011 (work in progress)</prt> http://tools.ietf.org/html/draft-ietf-hip-cert-07 Online <prt>IETF Trust</prt> An online version is available at: http://tools.ietf.org/html/draft-ietf-hip-cert-07 Internet Drafts <prt>Internet Engineering Task Force</prt> Internet Engineering Task Force en 1 TobiasHeer SamuVarjonen techreport draft-ietf-hip-cert-09 <prt>Host Identity Protocol Certificates</prt> 2011 1 1 draft-ietf-hip-cert-09.txt 1 <prt>expires: July 22, 2011 (work in progress)</prt> http://tools.ietf.org/html/draft-ietf-hip-cert-09 Online <prt>IETF Trust</prt> An online version is available at: http://tools.ietf.org/html/draft-ietf-hip-cert-09 Internet Drafts <prt>Internet Engineering Task Force</prt> Internet Engineering Task Force en 1 TobiasHeer SamuVarjonen incollection 2011-kai-springer How People and Stakeholders Shape Standards – The Case of IEEE 802.11 2011 75 1-13 fileadmin/papers/2011/2011-kai-springer.pdf Druck Filipe, Joaquim; Cordeiro, José Springer
Berlin, Germany
Lecture Notes in Business Information Processing 1st 1.1 Web Information Systems and Technologies en 978-3-642-22809-4 1 KaiJakobs
inproceedings PunalScOff11 <prt>Combined Subcarrier Switch Off and Power Loading for 80 MHz Bandwidth WLANs</prt> 2011 Proc. of the 18th IEEE International Workshop on Local and Metropolitan Area Networks (LANMAN'11) OscarPuñal JamesGross inproceedings Punal11 <prt>Performance Comparison of Loading Algorithms for 80 MHz IEEE 802.11 WLANs</prt> 2011 124--132 Proc. of the 73rd IEEE Vehicular Technology Conference (VTC-Spring'11) OscarPuñal HumbertoEscudero JamesGross inproceedings Li2011ICC <prt>Robust Clustering of Ad-Hoc Cognitive Radio Networks under Opportunistic Spectrum Access</prt> 2011 1 -6 Proc. of IEEE International Conference on Communications (ICC'11) DiLi JamesGross techreport 2011-heer-draft-middle-auth End-Host Authentication for HIP Middleboxes (Version 4) 2011 draft-heer-hip-middle-auth-04 The Host Identity Protocol [RFC5201] is a signaling protocol for secure communication, mobility, and multihoming that introduces a cryptographic namespace. This document specifies an extension for HIP that enables middleboxes to unambiguously verify the identities of hosts that communicate across them. This extension allows middleboxes to verify the liveness and freshness of a HIP association and, thus, to secure access control in middleboxes. Work in progress ietf, mobile_access http://tools.ietf.org/html/draft-heer-hip-middle-auth-04 Online Internet Engineering Task Force Internet-Draft en TobiasHeer MiikaKomu RenéHummen KlausWehrle