Publications

@inproceedings{Festag:MAIN:2001,

title = {Performance Evaluation of Mobile IP: Investigating the Concept of Hierarchical Foreign Agents},

author = {A. Festag and A. Wolisz},

url = {https://festag-net.de/wp-content/uploads/2001_Festag_MAIN.pdf},

year  = {2001},

date = {2001-04-26},

urldate = {2001-04-26},

booktitle = {Mobility for All-IP Networks – Mobile IP (MAIN)},

address = {Berlin, Germany},

keywords = {mobile communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:EW:2000,

title = {MOMBASA: Mobility Support -– A Multicast-Based Approach},

author = {A. Festag and A. Wolisz},

url = {https://festag-net.de/wp-content/uploads/2000_Festag_EuropWireless.pdf},

year  = {2000},

date = {2000-09-12},

urldate = {2000-09-12},

booktitle = {European Wireless},

address = {Dresden, Germany},

abstract = {In general IP multicast supports location-independent addressing and routing for a group of hosts. This ability is similar to the requirement for mobility support in IP-based networks though in a different context. MOMBASA stands for ``MObility support – a Multicast BASed Approach''. It is intended to utilise multicast in order to support network level mobility. The basic mechanism of a multicast-based handover can be composed of a multicast join- and leave-operation of the new and old multicast router, respectively. Additionally to the basic mechanism, MOMBASA investigates extended multicast functionalities which improves the handover in terms of the handover latency, the management of the multicast group and adaptation of the multicast data traffic to the wireless transmission capabilities. In particular the extended multicast functionalities are useful for vertical handover. Unfortunately today's IP multicast suffers from scalability problems and is not generally available. Nevertheless it is commonly expected that the future Internet will provide an optimised multicast. MOMBASA works out the requirements of handover on future multicast protocols and investigates alternate IP-style multicast protocols. As a first approach a multicast protocol is considered which realises a dynamic multipoint-to-multipoint communication in switched networks. An experimental handover testbed is set up which proofs the basic approach and provides extended multicast functionalities. The testbed is described and performance results are given. Other IP-style multicast protocol will be investigated in further steps.},

keywords = {mobile communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:ICATM:2000,

title = {Rerouting for Handover in Mobile Networks with Connection-Oriented Backbones: An Experimental Testbed},

author = {A. Festag and T. Assimakopoulos and L. Westhoff and A. Wolisz},

url = {https://ieeexplore.ieee.org/document/856700},

doi = {10.1109/HPSR.2000.856700},

year  = {2000},

date = {2000-06-26},

urldate = {2002-08-06},

booktitle = {IEEE Conference on High Performance Switching and Routing (ICATM)},

pages = {491-499},

address = {Heidelberg, Germany},

abstract = {The rerouting of connections for handover in a broadband mobile cellular network is investigated. We address networks with a connection-oriented backbone, which supports quality-of-service (QoS). Moreover it is assumed an IP-style multicast on top of the connection-oriented network. We advocate to utilize the IP-style multicast in order to reroute connections for handover. Three rerouting schemes are proposed, which are based on the IP-style multicast. One of the schemes realizes a predictive approach, where a call is pre-established to potential new base stations by setting up a multicast tree with neighboring base stations as leaf nodes. This approach reduces the handover latency caused by rerouting to an absolute minimum and improves communication with strict time constraints and frequent handover. For experimental investigations of the rerouting schemes a testbed is set up, which is based on an open, non- proprietary, experimental networking environment. Its signaling software offers a direct many-to-many communication, rather than requiring one-to-many overlays and the switching hardware supports scalable and efficient multicast by cell-recycling. The testbed is performance evaluation of the rerouting scheme.},

keywords = {mobile communications, multicast},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Assimakopoulos:MobileCommSummm:1999,

title = {Integrated Broadband Mobile System (IBMS) Demonstrator Concept},

author = {T. Assimakopoulos and A. Festag and F. Fitzek and S. Irmer and A. Wolisz},

year  = {1999},

date = {1999-06-08},

urldate = {1999-06-08},

booktitle = {ACTS Mobile Communications Summit},

pages = {365-370},

address = {Sorrento, Italy},

keywords = {mobile communications, wireless communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:WirelBroadbInHouseDigNet:1998,

title = {WATM Testbed for Handover Experiments and Measurements},

author = {A. Festag and F. Fitzek and A. Wolisz},

year  = {1998},

date = {1998-01-31},

booktitle = {Workshop Wireless Broadband In-House Digital Networks},

address = {Ulm, Germany},

keywords = {mobile communications, wireless communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:ICUPC:1997,

title = {Interconnection of Wireless Cells -– a Multicast-Based Approach},

author = {A. Festag and J. Weinmiller and A. Wolisz},

url = {https://festag-net.de/wp-content/uploads/1997_Festag_ICUPC.pdf},

doi = {10.1109/ICUPC.1997.627225},

year  = {1997},

date = {1997-10-12},

urldate = {2002-08-06},

booktitle = {International Conference on Universal Personal Communications (ICUPC)},

address = {San Diego, CA, USA},

abstract = {This paper presents a solution to interconnect wireless cells to reach common LAN-dimensions. The protocol uses multicast to support fast handover in the presence of mobility in a local environment. The approach is strictly connectionless. A performance evaluation points out the benefits gained by using the multicast and estimates the drawbacks induced by the connectionless approach and by buffering.},

keywords = {mobile communications, wireless communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:MobileComSummit:1997,

title = {Integrated Broadband Mobile System (IBMS) featuring Wireless ATM},

author = {M. Bronzel and D. Hunold and G. Fettweis and T. Konschak and T. Dölle and V. Brankovic and H. Alikhani and J. P. Ebert and A. Festag and F. Fitzek and A. Wolisz},

url = {https://festag-net.de/wp-content/uploads/1997_Festag_MobileComSummit.pdf},

year  = {1997},

date = {1997-10-07},

urldate = {1997-10-07},

booktitle = {ACTS Mobile Communication Summit},

address = {Aalborg, Denmark},

abstract = {IBMS is a concept for future mobile communication systems to provide a large range of data rates with different degrees of mobility. The integration of heterogeneous services and communication systems requires a common Network Access and Connectivity CHannel (NACCH) for basic signaling to provide permanent network access. Smart Antennas are utilized to adaptively enable a trade-off between mobility and data rate.},

keywords = {mobile communications},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Festag:LANMAN:1996,

title = {Handover Protocol for Interconnecting Wireless Cells},

author = {A. Festag and J. Weinmiller and A. Wolisz},

url = {https://festag-net.de/wp-content/uploads/1996_Festag_LANMAN.pdf},

year  = {1996},

date = {1996-04-04},

urldate = {1996-04-04},

booktitle = {IEEE Workshop on Local and Metropolitan Area Networks (IEEE LANMAN)},

address = {Berlin/Potsdam, Germany},

keywords = {mobile communications},

pubstate = {published},

tppubtype = {inproceedings}

}