---------------------------------------------------------- MMB Email Newsletter Ausgabe I / 2010 ---------------------------------------------------------- Liebe MMB Mitglieder, unsere im März in Essen stattgefundene Fachtagung MMB & DFT 2010 war wieder einmal ein echtes Highlight - ich glaube, dies im Namen aller Teilnehmer sagen zu dürfen. Herzlichen Dank nochmals an die Organisatoren Bruno Müller-Clostermann, Klaus Echtle und Erwin Rathgeb! Lesen Sie dazu den ausführlichen Tagungsbericht in diesem Newsletter. Das MMB-Leitungsgremium hat in seiner Sitzung in Essen beschlossen, dass die mit der diesjährigen Tagung begonnene erfolgreiche Zusammenarbeit mit dem Fachausschuss "Verlässlichkeit und Fehlertoleranz" (das "DFT" im Tagungskürzel!) fortgesetzt werden soll. Zeitpunkt und Ort für die nächste Fachtagung stehen auch schon fest: Sie wird in zwei Jahren, also im Frühjahr 2012, unter der Federführung von Jens Schmitt an der TU Kaiserslautern stattfinden - die Vorbereitungen dazu laufen bereits! In diesem Jahr wäre Konrad Zuse, der Erfinder des ersten programmgesteuerten, binären Rechners 100 Jahre alt geworden. Aus diesem Anlass findet eine Vielzahl von Veranstaltungen statt, schauen Sie doch einfach mal in die Übersicht unter www.zuse-jahr-2010.de Und nun viel Vergnügen bei der Lektüre dieses MMB-Newletter, mit den besten Grüßen, Markus Siegle Sprecher der GI/ITG Fachgruppe MMB ---------- INHALT AUF EINEN BLICK: Berichte: - Bruno Müller-Clostermann: Tagungsbericht MMB & DFT 2010 in Essen - Markus Siegle: Publikationsmöglichkeit in der ntz Aktuelle Arbeiten und Artikel: - Tobias Hoßfeld: Performance Evaluation of Future Internet Applications and Emerging User Behavior (MMB Dissertationspreis 2010) - Jennifer Mylosz: Nicht-ergodische Jackson-Netze mit unzuverlässigen Knoten (MMB Abschlussarbeitspreis 2010) - Oliver Hohlfeld: Statistical Error Model to Impair an H.264 Decoder (MMB Abschlussarbeitspreis 2010) - Christian Hübsch, Christoph Mayer, Oliver Waldhorst: User-perceived Performance of the NICE Application Layer Multicast Protocol in Large and Highly Dynamic Groups (MMB 2010 Best Paper Award) Bevorstehende Konferenzen und Veranstaltungen ---------- BRUNO MÜLLER-CLOSTERMANN (TAGUNGSLEITER MMB & DFT 2010): TAGUNGSBERICHT MMB & DFT 2010 IN ESSEN (Eine lange Version dieses Berichts mit Bildern ist unter http://www.mmb-fg.de/geschichte/Tagungsbericht-MMB-DFT-2010-lang.pdf verfügbar) Vom 15. bis 17. März 2010 fand in Essen die 15. Jahrestagung der MMB statt, diesmal in Kooperation mit dem Fachausschuss "Verlässlichkeit und Fehlertoleranz", und erstmalig explizit deklariert als internationale Konferenz: 15th International GI/ITG Conference on "Measurement, Modelling and Evaluation of Computing Systems” and "Dependability and Fault Tolerance”, kurz "MMB & DFT 2010". Ausrichter der Tagung waren die drei Arbeitsgruppen "Systemmodellierung" (Prof. Müller-Clostermann), "Verläßlichkeit von Rechensystemen" (Prof. Echtle) und "Technik der Rechnernetze" (Prof. Rathgeb), die dem Institut für Informatik und Wirtschaftsinformatik am Campus Essen der Universität Duisburg-Essen angehören. Die Konferenz wurde von insgesamt 70 Teilnehmern besucht und freundlicherweise ideell und finanziell unterstützt von der Gesellschaft für Informatik (GI), der Informationstechnischen Gesellschaft (ITG) und der Deutschen Forschungsgemeinschaft (DFG). Als industrieller Sponsor konnte das Dortmunder System- und Softwarehaus Materna gewonnen werden. Einreichungen, Programm und Tagungsband: Es waren 42 Einreichungen zu verzeichnen (davon 5 Tool-Beschreibungen), die von Autoren aus 15 verschiedenen Ländern stammten. Jeder eingereichte Beitrag wurde von 3 bis zu 5 Programmkomiteemitgliedern begutachtet, wobei insgesamt 158 Gutachten erstellt und schließlich 19 reguläre Beiträge (sowie 5 Tool Paper) zur Veröffentlichung ausgewählt wurden. Das wissenschaftliche Programm wurde vervollständigt durch zwei eingeladene Vorträge: Phil Koopman (Carnegie Mellon University) mit seinem Vortrag "Mitigating the Effects of Internet Timing Faults Across Embedded Network Gateways” und Paul Kühn (Universität Stuttgart) mit "Green IT - The Power Saving Challenge and ICT Solutions". In einer "Industry Session" wurden Anforderungen und Einsatzmöglichkeiten für modellgestützte Methoden bei der Systementwicklung vorgestellt: Jeroen Voeten (Embedded Systems Institute, Eindhoven, Netherlands) sprach über "Performance Prediction and Design-Space Exploration for Wafer Scanners" und Thomas Herpel (Automotive Safety Technologies GmbH) zum Thema "Development and Performance Evaluation of Intelligent Vehicle Safety Systems". Das vollständige Konferenzprogramm ist zu finden unter http://mmb2010.org/ Der Tagungsband erschien beim Springer-Verlag in der Reihe LNCS als Band 5987 "Measurement, Modelling, and Evaluation of Computing Systems and Dependability and Fault Tolerance – 15th international GI/ITG Conference MMB & DFT 2010, Proceedings; B. Müller-Clostermann, K. Echtle, E. P. Rathgeb (Eds.) Best Paper Award: Den "Best Paper Award" des MMB-Fachausschusses für den besten Beitrag erhielten Christian Hübsch, Christoph Mayer und Oliver Waldhorst für ihre Arbeit "User-perceived Performance of the NICE Application Layer Multicast Protocol in Large and Highly Dynamic Groups", die von Herrn Waldhorst präsentiert wurde. MMB-Preis 2010 für hervorragende Abschlussarbeiten: Der MMB-Preis wird inzwischen traditionell auf der Jahrestagung an die Preisträger überreicht. Die Verleihung des Preises ist mit einem Geldbetrag und der kostenlosen Teilnahme an der Tagung verbunden. Den MMB-Preis für die beste Diplomarbeit der Jahre 2008 und 2009 erhielten gemeinsam Frau Jennifer Mylosz von der Universität Hamburg für ihre Arbeit "Nicht-ergodische Jackson-Netze mit unzuverlässigen Knoten" (Betreuer: Prof. Daduna) und Herr Oliver Hohlfeld von der Technischen Universität Darmstadt für seine Arbeit "Statistical Error Model to Impair an H.264 Decoder" (Betreuer: Prof. Steinmetz, PD Dr. Haßlinger und Dipl.-Ing. Rüdiger Geib). Den MMB-Preis 2010 für die beste Dissertation erhielt Tobias Hoßfeld von der Universität Würzburg für seine Arbeit "Performance Evaluation of Future Internet Applications and Emerging User Behavior” (Betreuer: Prof. Tran-Gia). MMB & DFT 2012: Die nächste Jahrestagung wird im Frühjahr 2012 an der Technischen Universität Kaiserslautern durchgeführt. Gastgeber und Tagungsleiter der MMB & DFT 2012 ist Prof. Dr. Jens Schmitt. ---------- MARKUS SIEGLE: PUBLIKATIONSMÖGLICHKEIT IN DER NTZ Die ntz - Fachzeitschrift für Informations- und Kommunikationstechnik bietet in ihrer bewährten Kombination aus fundierter technischer und wirtschaftlicher Berichterstattung über die sich rasch wandelnden und konvergierenden Märkte der Telekommunikation und der Datennetze einen umfassenden Überblick. Sie bietet deshalb für ihre Leser, vorrangig Manager und Technik-Verantwortliche in mittlerer und gehobener Position sowohl bei Herstellern als auch Carriern und Unternehmen, eine solide Grundlage für zukunftssichere Investitionsentscheidungen. Da die ntz auch das Organ der Informationstechnischen Gesellschaft im VDE (ITG) ist, möchte sie zukünftig verstärkt aus der Arbeit der ITG berichten. Neben der halbjährlichen Veröffentlichung der ITG-News sind deshalb auch vermehrt umfassendere Fachartikel aus den Reihen der ITG zu Themen erwünscht, die in der ITG behandelt und vorangetrieben werden. Dies sollte vor allem dadurch geschehen, dass Grundlagen- und Übersichtsbeiträge aus den einzelnen Fachbereichen in der ntz veröffentlicht werden. Als Anregung seien nur einige der nächsten Themenschwerpunkte der ntz genannt: - Optische Netze, Grundlagen; - Next Generation Networks, Carrier Ethernet; - Zugangsnetze, Breitbandkabel, FTTx; - Funktechnik allgemein, Mobilfunk (HSPA, LTE, ...); - Netzmanagement; - Voice over IP, Unified Communications; - Sicherheit, Verschlüsselung und Signaturen; - Messen und Prüfen; - Rechenzentren, Green IT usw. Aber auch Beiträge zu weiteren Themen sind stets willkommen, um das Spektrum der ntz abzurunden und möglichst alle Gebiete der ITG abzudecken. Die Länge der Beiträge sollte zwischen 9.000 und 18.000 Zeichen liegen (zzgl. einiger Bilder/Grafiken). Redaktionsschluss ist etwa zwei Monate vor Erscheinen; eine vorherige Absprache mit der Redaktion ist wünschenswert, um die Beiträge besser planen zu können. http://www.vde-verlag.de/zeitschriften/ntz-nachrichtentechnische-zeitschrift.html ---------- TOBIAS HOßFELD: PERFORMANCE EVALUATION OF FUTURE INTERNET APPLICATIONS AND EMERGING USER BEHAVIOR (MMB DISSERTATIONSPREIS 2010) In future telecommunication systems, we observe an increasing diversity of access networks. The separation of transport services and applications or services leads to multi-network services, i.e., a future service has to work transparently to the underlying network infrastructure. Multi-network services with edge-based intelligence, like P2P file sharing or the Skype VoIP service, impose new traffic control paradigms on the future Internet. Such services adapt the amount of consumed bandwidth to reach different goals. A selfish behavior tries to keep the QoE of a single user above a certain level. Skype, for instance, repeats voice samples depending on the perceived end-to-end loss. From the viewpoint of a single user, the replication of voice data overcomes the degradation caused by packet loss and enables to maintain a certain QoE. The cost for this achievement is a higher amount of consumed bandwidth. However, if the packet loss is caused by congestion in the network, this additionally required bandwidth even worsens the network situation. Altruistic behavior, on the other side, would reduce the bandwidth consumption in such a way that the pressure on the network is released and thus the overall network performance is improved. In this monograph, we analyzed the impact of the overlay, P2P, and QoE paradigms in future Internet applications and the interactions from the observing user behavior. The shift of intelligence toward the edge is accompanied by a change in the emerging user behavior and traffic profile, as well as a change from multi-service networks to multi-networks services. In addition, edge-based intelligence may lead to a higher dynamics in the network topology, since the applications are often controlled by an overlay network, which can rapidly change in size and structure as new nodes can leave or join the overlay network in an entirely distributed manner. As a result, we found that the performance evaluation of such services provides new challenges, since novel key performance factors have to be first identified, like pollution of P2P systems, and appropriate models of the emerging user behavior are required, e.g. taking into account user impatience. As common denominator of the presented studies in this work, we focus on a user-centric view when evaluating the performance of future Internet applications. For a subscriber of a certain application or service, the perceived quality expressed as QoE will be the major criterion of the user's satisfaction with the network and service providers. We selected three different case studies and characterized the application's performance from the end user's point of view. Those are (1) cooperation in mobile P2P file sharing networks, (2) modeling of online TV recording services, and (3) QoE of edge-based VoIP applications. The user-centric approach facilitates the development of new mechanisms to overcome problems arising from the changing user behavior. An example is the proposed CycPriM cooperation strategy, which copes with selfish user behavior in mobile P2P file sharing system. An adequate mechanism has also been shown to be efficient in a heterogeneous B3G network with mobile users conducting vertical handovers between different wireless access technologies. The consideration of the user behavior and the user perceived quality guides to an appropriate modeling of future Internet applications. In the case of the online TV recording service, this enables the comparison between different technical realizations of the system, e.g. using server clusters or P2P technology, to properly dimension the installed network elements and to assess the costs for service providers. Technologies like P2P help to overcome phenomena like flash crowds and improve scalability compared to server clusters, which may get overloaded in such situations. Nevertheless, P2P technology invokes additional challenges and different user behavior to that seen in traditional client/server systems. Beside the willingness to share files and the churn of users, peers may be malicious and offer fake contents to disturb the data dissemination. Finally, the understanding and the quantification of QoE with respect to QoS degradations permits designing sophisticated edge-based applications. To this end, we identified and formulated the IQX hypothesis as an exponential interdependency between QoE and QoS parameters, which we validated for different examples. As an application of the IQX hypothesis, the general benefit of the replication of voice datagrams was analytically investigated. The cost of this replication, besides the increased bandwidth consumption, is an increased jitter, which also impacts the QoE. As a result, a maximal degree of replication can be derived up to which an increase of the QoE can be achieved. The appropriate modeling of the emerging user behavior taking into account the user's perceived quality and its interactions with the overlay and P2P paradigm will finally help to design future Internet applications. Mehr unter http://www3.informatik.uni-wuerzburg.de/diss/diss_24.pdf ---------- JENNIFER MYLOSZ: NICHT-ERGODISCHE JACKSON-NETZE MIT UNZUVERLÄSSIGEN KNOTEN (MMB DIPLOMARBEITSPREIS 2010) This diploma thesis contributes to a better understanding of the behavior of networks that cannot approach a classical equilibrium state. The investigation of the thesis is motivated by the following observation: In large and complex networks, instable subnetworks often occur due to local overload or due to non-availability of nodes or links. The global network then is not stable in any classical sense, but there co-exist regions with other regions where subnetworks stabilize locally. To analyze such networks, Jackson networks with unreliable nodes which randomly break down and are under repair for a random time are considered. The network is described by a Markov process which encompasses the availability status and queue lengths vector. Ergodicity conditions for many related networks can often be expressed as rate conditions. For (reliable) nodes in Jackson networks the arrival rate of each node has to be strictly less than its service rate. If for some nodes this condition is violated, the network process is not ergodic. Nevertheless, it is known that in such a situation, especially in large networks, parts of the network (where the rate condition is fulfilled) in the long run stabilize. For standard Jackson networks without breakdown of nodes, the asymptotics of such stable subnetworks were derived by Goodman and Massey (1984). In this diploma thesis, the asymptotic behavior of non-ergodic Jackson networks with unreliable nodes is analyzed and it is shown that the state distribution of the stable subnetworks converges to a Jackson-type product form distribution which makes reliability and performance evaluation of such networks possible. Parts of the diploma thesis are published as: J. Mylosz, H. Daduna, On the behavior of stable subnetworks in non-ergodic networks with unreliable nodes, Computer Networks 53 (2009) pp. 1249-1263. For further information, please contact J.M. via email: jennifer.mylosz@math.uni-hamburg.de. ---------- OLIVER HOHLFELD: STATISTICAL ERROR MODEL TO IMPAIR AN H.264 DECODER (MMB DIPLOMARBEITSPREIS 2010) With provisioning of broadband access for mass market even in wireless and mobile networks, multimedia content, especially real-time streaming of high-quality audio and video, is extensively viewed and exchanged over the Internet. Quality of Experience (QoE) aspects, describing the service quality perceived by the user, are a vital factor in ensuring customer satisfaction in today's network services. Creating frameworks for accessing quality degradations in streamed video currently is investigated as a complex multi-layered research topic, involving network traffic load, codec functions and measures of user perception of video quality. Within this area, the present thesis focuses on packet loss models and corresponding impairments in real-time transmissions of H.264 encoded video streams. Based on backbone traffic and DVB-H packet loss traces, stochastic models for the packet loss process are evaluated and discussed. The aim is to provide a Markovian generator for packet loss pattern for studying the impact of imparements on the Quality of Experience. As traffic measurements on backbone links rarely contain packet losses, a set of typical loss pattern was introduced by simulating a tail-drop queue on a router's link interface feeded by observed traffic, where smaller forwarding capacity is assumed to obtain higher load levels. The approach is appropriate for UDP traffic, whereas the much more complex TCP rate control and its impact on traffic variability was left for further study. The resulting packet loss process and the impact of queue dimensioning on the packet loss process, are discussed. The main contribution of the Master thesis is a new parameter estimation technique for Markovian point processes. Second-order statistics for the distribution of the number of lost packets over multiple time-scales are derived from moment generating functions and moment matching is used to adapt a Markov process to error pattern observed in multiple time-scales. The second order statistics in multiple time-scales is equivalent to the autocorrelation function of a process. An explicit analytical expression is derived for the Gilbert-Elliott model to compute the statistics on arbitrary scales based on four parameters, which gives clear insight for the reverse process of parameter adaptation to observed statistics in relevant time scales. The experience in applying the results to loss processes from several sources suggest that the classical 2-state Gilbert-Elliott model already captures a wide range of observed loss pattern. The proposed approach leads to a closer match in multiple time scales than classical methods with more flexibility to include information from different time scales, enabling a simple and useful fit for long traces of traffic and packet loss processes. There is a large amount of work utilizing the Gilbert-Elliott model, focusing on fitting error run and gap lengths rather than long term correlation. The analytical study of loss pattern is supplemented with a qualitative investigation of their effects on QoE metrics for video transmission. In general, impairments of video sequences are sensitive to different assumptions on loss processes yielding different reaction in coding of slices and frames, which stresses the importance of refering to the most relevant pattern. A reference set of error processes was obtained from Gilbert-Elliott models correnponding to traffic profiles at different load versus error rate levels with additional parameters being adapted to observed loss pattern statistics. The set is used for impairment of H.264 encoded, high definition (HD) IPTV video streams in order to derive properties of impaired and unimpaired HDTV video sequences. A comparison of 2400 impaired video sequences led to strong evidence that uniform packet losses produce a larger distortion than busty packet losses at the same and sufficiently high rate, since the former affect more frames on the video coding layers. Moreover, the results suggest that created impairments at the video layer are affected by the applied parameter estimation technique. Mehr unter http://www.ohohlfeld.com/masterthesis.html ---------- CHRISTIAN HÜBSCH, CHRISTOPH MAYER, OLIVER WALDHORST: USER-PERCEIVED PERFORMANCE OF THE NICE APPLICATION LAYER MULTICAST PROTOCOL IN LARGE AND HIGHLY DYNAMIC GROUPS (MMB 2010 BEST PAPER AWARD) The presentation of a landmark paper by Chu et al. at SIGMETRICS 2000 introduced application layer multicast (ALM) as completely new area of network research. Many researchers have since proposed ALM protocols, and have shown that these protocols only put a small burden on the network in terms of link-stress and -stretch. However, since the network is typically not a bottleneck, user acceptance remains the limiting factor for the deployment of ALM. In this paper we present a in-depth study of the user-perceived performance of the NICE ALM protocol. We use the OverSim simulation framework to evaluate delay experienced by a user and bandwidth consumption on the user's access link in large multicast groups and under aggressive churn models. Our major results are (1) latencies grow moderate with increasing number of nodes as clusters get optimized, (2) join delays get optimized over time, and (3) despite being a tree-dissemination protocol NICE handles churn surprisingly well when adjusting heartbeat intervals accordingly. We conclude that NICE comes up to the user's expectations even for large groups and under high churn. Mehr unter http://www.tm.uka.de/itm/WebMan/view.php?view=publikationen_detail&id=382 ---------- BEVORSTEHENDE KONFERENZEN UND VERANSTALTUNGEN Veranstaltungshinweise können an den Newsletter Editor (waldhorst@kit.edu) gesendet werden. Networking 2010 IFIP Networking Chennai, India 10.-14.05.2010 http://networking-2010.org/ WFCS 2010 8th IEEE Int. Workshop on Factory Communication Systems Communication in Automation Nancy, France 18.-12.05.2010 http://wfcs2010.loria.fr/ SIGMETRICS 2010 Int. Conf. on Measurement and Modeling of Computer Systems New York, USA 14.-18.06.2010 http://www.sigmetrics.org/sigmetrics2010/ WWIC 2010 8th Int. Conf. on Wired/Wireless Internet Communications Lulea, Sweden 01.-03.06.2010 http://www.ltu.se/wwic2010 NGI 2010 6th Euro NF Conf. on Next Generation Internet Paris, France 02.-04.06.2010 http://euronf.enst.fr/NGI2010/ MobiSys 2010 8th Annual Int. Conf. on Mobile Systems, Applications and Services San Francisco, California, USA 14.-17.06.2010 http://www.sigmobile.org/mobisys/2010/ GreenMetrics 2010 GreenMetrics 2010 Workshop New York, NY, USA 14.06.2010 http://www.sigmetrics.org/sigmetrics2010/GreenMetrics_cfp.pdf WiMesh 2010 5th IEEE Workshop on Wireless Mesh Networks Boston, Massachusetts 21.06.2010 http://www.ieee-secon.org/workshops3.html IWCMC 2010 6th Int. Wireless Communications and Mobile Computing Conf. Caen, France 28.06.2010 http://people.hofstra.edu/Habib_M_Ammari/WSN_Symp..html SUTC 2010 3rd IEEE Intl. Conf. on Sensor Networks, Ubiquitous, and Trustworthy Computing Newport Beach, CA, USA 07.-09.07.2010 http://sutc2010.eecs.uci.edu/ SPECTS 2010 Int. Symp. on Performance Evaluation of Computer and Telecommunication Systems Ottawa, ON, Canada 11.-14.07.2010 http://atc.udg.edu/SPECTS2010/ WoWMoM 2010 11th IEEE Int. Symp. on a World of Wireless, Mobile and Multimedia Networks Montreal, Canada 14.-17.07.2010 http://wowmom2010.netgroup.uniroma2.it/ WiMAN 2010 4th IEEE Int. Workshop on Wireless Mesh and Ad Hoc Networks Zürich, Switzerland 02.-05.08.2010 http://people.hofstra.edu/Habib_M_Ammari/WiMAN_Workshop2010.html PMECT 2010 4th IEEE workshop on performance modeling and evaluation in computer and telecommunication networks Zürich, Switzerland 02.-05.08.2010 http://www.rn.inf.tu-dresden.de/hwn/2010/PMECT/dates.html ICCCN 2010 Int. Conf. on Computer Communication Networks Zürich, Switzerland 02.-05.08.2010 http://www.icccn.org/icccn10/ ADHOC-NOW 2010 9th Int. Conf. on Ad Hoc Networks and Wireless Edmonton, Canada 20.-22.08.2010 http://www.cs.ualberta.ca/adhocnow10 SIGCOMM 2010 ACM SIGCOMM 2010 New Delhi, India 30.08.-03.09.2010 http://Conf.s.sigcomm.org/sigcomm/2010/ MobiHoc 2010 Eleventh ACM Int. Symp. on Mobile Ad Hoc Networking and Computing Chicago, IL, USA 20.-24.09.2010 http://www.sigmobile.org/mobihoc/2010/ HPCC-10 12th IEEE Int. Conf. on High Performance Computing and Communications Melbourne, Australia 01.-03.2010 http://www.anss.org.au/hpcc2010 DC CAVES 2nd Data Center Converged and Virtual Ethernet Switching Workshop Amsterdam, The Netherlands 06.09.2010 http://www.i-teletraffic.org/itc22/workshops/dc-caves-workshop/ MobiCom 2010 16th Annual Int. Conf. on Mobile Computing and Networking Chicago, IL, USA 20.-24.09.2010 http://www.sigmobile.org/mobicom/2010/ WiNTECH 2010 5th ACM Int. Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization Chicago, Illinois, USA 20.09.2010 Deadline: 25.05.2010 http://nitlab.inf.uth.gr/WINTECH2010/ SASO 2010 4th IEEE Int. Conf. on Self-Adaptive and Self-Organizing Systems Budapest, Hungary 27.09.-01.10.2010 Deadline: 10.05.2010 http://www.inf.u-szeged.hu/saso10/ ICNP 2010 18th IEEE Int. Conf. on Network Protocols Kyoto, Japan 05.-08.2010 http://web.njit.edu/~gwang/ICNP10/ WISe 2010 3rd IEEE LCN Int. Workshop on Wireless & Internet Services Denver, Colorado, USA 11.-14.10.2010 http://www.lifl.fr/WISe/2010/ WLN 2010 10th IEEE Int. Workshop on Wireless Local Networks 2010 Denver, Colorado, USA 11.-14.10.2010 Deadline: 05.05.2010 http://www.wln10.prism.uvsq.fr/ LCN 2010 35th Annual IEEE Conf. on Local Computer Networks Denver, Colorado, USA 11.-14.10.2010 http://www.ieeelcn.org/ MSWiM  2010 13th ACM Int. Conf. on Modeling Analysis and Simulation of Wireless and Mobile Systems Bodrum, Turkey 17.-21.10.2010 Deadline: 08.05.2010 http://www.cmpe.boun.edu.tr/mswim2010 Q2SWinet 2010 6th Symp. on QoS and Security for Wireless Mobile Networks Bodrum, Turkey 117.-21.10.2010 Deadline: 01.06.2010 http://conferenze.dei.polimi.it/Q2SWinet2010 MAST 2010 Int. Conf. on Mobile Applications, Systems & Technology Singapore 18.-21.10.2010 Deadline: 09.07.2010 http://www.mobility-Conf..org/ VANET 2010 7th ACM Int. Workshop on VehiculAr Inter-NETworking Chicago, IL, USA 24.10.2010 http://winlab.rutgers.edu/~fanbai/vanet2010/ GreenCom 2010 IEEE/ACM Int. Conf. on Green Computing and Communications Hangzhou, China 30.10.-01.11.2010 Deadline: 30.06.2010 http://cse.stfx.ca/~GreenCom2010/ NGWMN-2010 3rd Int. Workshop on Next Generation of Wireless and Mobile Networks Fukuoka, Japan 04.-06.11.2010 Deadline: 15.06.2010 http://www.uoguelph.ca/~jernst/NGWMN2010/NGWMN2010.htm MASS 2010 7th IEEE Int. Conf. on Mobile Ad-hoc and Sensor Systems San Francisco, CA, USA 08.-12.11.2010 https://mass2010.soe.ucsc.edu/ Netgames 2010 9th Int. Workshop on Network and Systems Support for Games Taipei, Taiwan 16.-17.11.2010 Deadline: 26.07.2010 http://netgames2010.ntpu.edu.tw/ IFIP PERFORMANCE 2010 Namur, Belgium 17.-19.11.2010 http://performa.ulb.ac.be/ IEEE Globecom 2010 Miami, FL, USA 06.-10.12.2010 http://www.comsoc.org/confs/globecom/2010 MSN'10 6th Int. Conf. on Mobile Ad-hoc and Sensor Networks Hangzhou, China 20.-22.12.2010 Deadline: 09.07.2010 http://guide.hdu.edu.cn/msn10 WiMoNe 2010 2nd Int. Conf. on Wireless & Mobile Networks Chennai, India 27.-29.12.2010 Deadline: 20.05.2010 http://coneco2009.com/wimone/wimone.html ICDCN 2011 12th Int. Conf. on Distributed Computing and Networking Bangalore, India 02.-05.01.2011 Deadline: 08.07.2010 http://icdcn.iitkgp.ac.in/ INFOCOM 2011 30th IEEE Int. Conf. on Computer Communications Shanghai, China TBA Deadline: 30.07.2010 http://www.ieee-infocom.org/ AINA-2011 IEEE 25th Int. Conf. on Advanced Information Networking and Applications Biopolis, Singapore 22.-25.03.2011 Deadline: 15.09.2010 http://aina2011.i2r.a-star.edu.sg/ ---------- MMB Newsletter Editor: Oliver Waldhorst (waldhorst@kit.edu) Der nächste Newsletter erscheint im Oktober 2010.