@inproceedings{Aguiar2003, author = {A. Aguiar and Christian Hoene and J. Klaue and H. Karl and H. Miesmer and Adam Wolisz}, title = {Channel-aware Schedulers for {VoIP} and {MPEG4} based on Channel Prediction}, booktitle = {Eight International Workshop on Mobile Multimedia Communications({MoMuC'03})}, year = {2003}, month = oct, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/MoMuC03.pdf}, } @inproceedings{Fouquet2009, author = {Marc Fouquet and Christian Hoene and Morten Schl\"ager and Georg Carle}, title = {Data Collection for Heterogeneous Handover Decisions in Beyond {3G} Networks}, booktitle = {Second Joint IFIP Wireless and Mobile Networking Conference (WMNC)}, year = {2009}, address = {Gdansk, Poland}, month = sep, abstract = {Future mobile networks will be increasingly heterogeneous. Already today, wireless LAN is used by many mobile network operators as an addition to traditional technologies like GSM and UMTS; WiMax and 3GPP Long Term Evolution (LTE) will be added. Having heterogeneous wireless networks, one challenging research question needs to be answered: Which user should be served by which access network at which time and when to conduct a handover? For such decisions, information on the state of networks and terminals is required. In this publication we simulate mobile networks in which a central entity called Network Resource Management (N-RM) gives handover recommendations to mobile terminals. Based on these recommendations and local knowledge on link qualities, the terminals choose the cell to switch to. The N-RM should have a global view on the networks to give best recommendations. We designed the Generic Metering Infrastructure (GMI), a publish/subscribe system to collect information about access networks and terminals efficiently. We investigate the tradeoff between the signalling overhead caused by data collection and the quality of the handover decisions and show, how smart monitoring can reduce the amount of measurement data while ensuring the efficient use of heterogeneous networks.}, days = {9}, keywords = {heterogeneous access networks, monitoring, handovers, resource management}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/fouquet_wmnc2009.pdf}, } @inproceedings{Guenther2005, author = {A. G\"unther and Christian Hoene}, title = {Measuring Round Trip Times to Determine the Distance between {WLAN} Nodes}, booktitle = {Networking 2005}, year = {2005}, address = {Waterloo, Canada}, month = may, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_paper2.pdf}, } @inproceedings{Hoene2002b, author = {Christian Hoene and I. Carreras and T. Chen and Adam Wolisz}, title = {Design and Deployment of Link-Layer Boosters for Per-flow Improvement of {QoS} in Wireless Internet Access}, booktitle = {European Wireless 2002}, year = {2002}, pages = {170--176}, address = {Florence, Italy}, month = feb, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/ew2002hoene.pdf}, postscript = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/ew2002hoene.ps.gz}, } @inproceedings{Hoene2001b, author = {Christian Hoene and I. Carreras and Adam Wolisz}, title = {Voice Over {IP}: Improving the Quality Over Wireless {LAN} by Adopting a Booster Mechanism - An Experimental Approach}, booktitle = {SPIE 2001 - Voice Over IP (VoIP) Technology}, year = {2001}, pages = {157--168}, address = {Denver, CO}, month = aug, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/vo21jun.pdf}, postscript = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/vo21jun.ps}, } @inproceedings{Hoene2004j, author = {Christian Hoene and Enhtuya Dulamsuren-Lalla}, title = {Predicting Performance of {PESQ} in Case of Single Frame Losses}, booktitle = {Measurement of Speech and Audio Quality in Networks Workshop {(MESAQIN)}}, year = {2004}, address = {Prague, CZ}, month = jun, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_version7.pdf}, } @inproceedings{Hoene2003a, author = {Christian Hoene and A. G\"unther and Adam Wolisz}, title = {Measuring the Impact of Slow User Motion on Packet Loss and Delay over {IEEE} 802.11b Wireless Links}, booktitle = {Proc. of Workshop on Wireless Local Networks (WLN) 2003}, year = {2003}, address = {Bonn, Germany}, month = oct, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_wln_2003.pdf}, } @inproceedings{Hoene2004i, author = {Christian Hoene and H. Karl and Adam Wolisz}, title = {A Perceptual Quality Model for Adaptive VoIP Applications}, booktitle = {Proc. of International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS'04)}, year = {2004}, address = {San Jose, California, USA}, month = jul, note = {paper won the Best Paper Award of the conference.}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_07_2004_paper.pdf}, } @inproceedings{Hoene2006ep, author = {Christian Hoene and Ian Marsh and G\"unter Sch\"afer and Adam Wolisz}, title = {Error Propagation After Concealing a Lost Speech Frame}, booktitle = {Proceedings of Multicomm 2006}, year = {2006}, address = {Istanbul, Turkey}, month = jun, url = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/proc_multicomm06_2.pdf} } @inproceedings{Hoene2003b, author = {Christian Hoene and B. Rathke and Adam Wolisz}, title = {On the Importance of a {VoIP} Packet}, booktitle = {{ISCA} Tutorial and Research Workshop on the Auditory Quality of Systems}, year = {2003}, address = {Mont-Cenis, Germany}, month = apr, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/paper10.pdf}, } @inproceedings{Hoene2005c, author = {Christian Hoene and Sven Wieth\"olter and Adam Wolisz}, title = {Calculation of Speech Quality by Aggregating the Impacts of Individual Frame Losses}, booktitle = {Thirteenth International Workshop on Quality of Service (IWQoS 2005)}, year = {2005}, address = {Passau, Germany}, month = jun, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_iwqos2005.pdf}, } @inproceedings{Hoene2004k, author = {Christian Hoene and S. Wieth\"olter and Adam Wolisz}, title = {Predicting the Perceptual Service Quality Using a Trace of {VoIP} Packets}, booktitle = {Fifth International Workshop on Quality of future Internet Services (QofIS'04)}, year = {2004}, address = {Barcelona, Spain}, month = sep, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene2004qofis.pdf}, } @inproceedings{Hoene2008, author = {Christian Hoene and J\"org Willmann}, title = {Four-way {TOA} and Software-Based Trilateration of {IEEE} 802.11 Devices}, booktitle = {IEEE PIMRC}, year = {2008}, address = {Cannes}, month = sep, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_pimrc2008.pdf}, } @inproceedings{Hoene2006b, author = {Christian Hoene and Till Wimmer}, title = {Classifying {VoIP} µ-law Packets in Real-Time}, booktitle = {ITG-Fachtagung Sprachkommunikation 2006}, year = {2006}, address = {Kiel, Germany}, month = apr, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene2006b.pdf}, } @inproceedings{Hoene2006c, author = {Christian Hoene and Adam Wolisz}, title = {{VoIP} und {WLAN}}, booktitle = {Vortr\"age des 199. PTB-Seminars, Berlin November 2004}, year = {2006}, number = {13}, series = {PTB-IT}, pages = {49-52}, address = {Braunschweig und Berlin, Germany}, month = mar, organization = {Physikalisch-Technische Bundesanstalt}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene2006c.pdf}, } @inproceedings{Hyder2010, author = {Mansoor Hyder and Michael Haun and Christian Hoene}, title = {Placing the Participants of a Spatial Audio Conference Call}, booktitle = {IEEE Consumer Communications and Networking Conference - Multimedia Communication and Services (CCNC 2010)}, year = {2010}, address = {Las Vegas, USA}, month = jan, abstract = {In teleconferencing calls it is difficult to identify the current talker, especially if the person is not well known. In addition, if more than one person is talking at the same time, none of them can be understood easily. In real meetings, however, these limitations are not relevant because humans hear spatially. They take advantage of the "cocktail party effect" to distinguish speakers. In this publication, we assess a teleconferencing solution that we call 3D Telephony, which adds a virtual acoustic room simulation to IP based telephony, thereby achieving a spatial audio experience. We have conducted subjective listening tests of a 3D audio rendering engine to study the impact of the participant's locations in a virtual environment on sound quality, understandability and locatability. Listening test results show some interesting findings. We identify placements, in which listeners found it very easy to locate virtual talkers and in which their success rate in locating two simultanous virtual talkers is nearly perfect.}, days = {9}, keywords = {spatial audio, teleconferencing, VoIP}, url = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/mansoor_ccnc2010.pdf} } @inproceedings{hyder2009, author = {Mansoor Hyder and Michael Haun and Christian Hoene}, title = {Measurements of Sound Localization Performance and Speech Quality in the Context of 3D Audio Conference Calls}, booktitle = {International Conference on Acoustics}, year = {2009}, address = {Rotterdam, Netherlands}, month = mar, organization = {NAG/DAGA}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hyder-nag-daga2009.pdf}, } @inproceedings{Jelassi2009, author = {Sofiene Jelassi and Habib Ben Youssef and Christian Hoene and Guy Pujolle}, title = {Voicing-Aware Parametric Speech Quality Models over {VoIP} networks}, booktitle = {Global Information Infrastructure Symposium (IEEE GIIS 2009)}, year = {2009}, address = {Hammamet, Tunisia}, month = jun, url = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/jelassi_giis2009.pdf} } @inproceedings{Krishna2009, author = {Ram Krishna and Christian Hoene}, title = {Calculating Relative Clock Drifts Using {IEEE} 802.11 Beacons}, booktitle = {IEEE INDICON}, year = {2009}, address = {Ahmedabad, India}, month = dec, url = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_indicon2009.pdf} } @inproceedings{Mahlo2005, author = {C. Mahlo and Christian Hoene and A. Rostami and Adam Wolisz}, title = {Adaptive Coding and Packet Rates for {TCP}-Friendly {VoIP} Flows}, booktitle = {Proc. of 3rd International Symposium on Telecommunications (IST2005)}, year = {2005}, address = {Shiraz, Iran}, month = sep, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/mahlo2005.pdf}, url = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/hoene_ist2005.zip} } @inproceedings{Monger2009, author = {Andreas Monger and Marc Fouquet and Christian Hoene and Georg Carle and Morten Schlaeger}, title = {A Metering Infrastructure for Heterogeneous Mobile Networks}, booktitle = {First International Conference on COMmunication Systems and NETworkS (COMSNETS)}, year = {2009}, address = {Bangalore, India}, month = jan, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/monger_comsnets2009.pdf}, } @inproceedings{Moreira2009, author = {Joao Luis G. Moreira and Edjair Mota and Edson N. Silva Jr. and Leandro Carvalho and Saulo Queiroz and Christian Hoene}, title = {Voice over Wireless Mesh Networks: A Case Study of Voice Codecs in the Brazilian Amazon Region}, booktitle = {Fifth International Workshop on Heterogeneous Wireless Networks (HWISE)}, year = {2009}, address = {Bradford, UK}, month = may, } @inproceedings{Schairer2008, author = {Timo Schairer and Christian Weiss and Philipp Vorst and J\"urgen Sommer and Christian Hoene and Wolfgang Rosenstiel and Wolfgang Stra\ss{}er and Andreas Zell and Georg Carle and Patrick Schneider and Anette Weisbecker}, title = {Integrated Scenario for Machine-Aided Inventory Using Ambient Sensors}, booktitle = {/Proceedings of the 4th European Workshop on RFID Systems and Technologies (RFID SysTech 2008/)}, year = {2008}, address = {Freiburg}, month = jun, organization = {VDE/ITG}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/rfid_systech_2008_p1.pdf}, } @inproceedings{Vorst2008, author = {Philipp Vorst and J\"urgen Sommer and Christian Hoene and Patrick Schneider and Christian Weiss and Timo Schairer and Wolfgang Rosenstiel and Andreas Zell and Georg Carle}, title = {Indoor Positioning via Three Different {RF} Technologies}, booktitle = {/Proceedings of the 4th European Workshop on RFID Systems and Technologies (RFID SysTech 2008)/}, year = {2008}, address = {Freiburg}, month = jun, organization = {VDE/ITG}, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/rfid_systech_2008_p2.pdf}, } @inproceedings{Wolisz2000, author = {Adam Wolisz and Christian Hoene and B. Rathke and M. Schl\"ager}, title = {Proxies, Active Networks, Re-configurable Terminals: The Cornerstones of Future Wireless Internet}, booktitle = {Proc. of IST Mobile Communications Summit}, year = {2000}, pages = {795--803}, address = {Galway, Ireland}, month = oct, pdf = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/IST2000TUB.pdf}, postscript = {http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/IST2000TUB.ps.gz}, }