@article{HagerFinkeSeitzetal., author = {Hager, Markus and Finke, Thomas and Seitz, Jochen and Waas, Thomas}, title = {Software-based management for Ethernet networks}, series = {Wireless Personal Communications}, volume = {74}, journal = {Wireless Personal Communications}, number = {3}, publisher = {Springer Nature}, doi = {10.1007/s11277-013-1341-3}, pages = {1021 -- 1032}, abstract = {An adequate network management is an essential part for each network permitting to keep the network performance at a suitable level. In this paper, we present our work focusing on an Ethernet network which is used as background interconnection technology for a smart home system in large buildings like tenements or an office block. In this case the network is larger and especially the applications are quite heterogeneous as compared to a private smart home system. Therefore, it is hard to supply a fair and quality of service aware network meeting all the demands. This is especially challenging in the case of an Ethernet network because this technology was intended to use it as a transparent connection system without the feature to support hard quality of service. We present how this problem could be solved by a middleware which best meets the special requirement of the mentioned use case. Finally, we discuss possible design improvements of this solution and present the recent Ethernet standards that could help solve this problem in an alternative way.}, language = {en} } @article{HagerSeitzWaas, author = {Hager, Markus and Seitz, Jochen and Waas, Thomas}, title = {Literature Survey on Recent Progress in Inter-Vehicle Communication Simulations}, series = {Journal of Transportation Technologies}, volume = {Vol. 5}, journal = {Journal of Transportation Technologies}, number = {3}, doi = {10.4236/jtts.2015.53015}, pages = {159 -- 168}, abstract = {The vehicular ad hoc network (VANET) technology based on the approved IEEE 802.11p standard and the appendant inter-vehicle communication (IVC) has the potential to dramatically change the way transportation systems work. The fundamental idea is to change the individual behavior of each vehicle by exchanging information among traffic participants to realize a cooperative and more efficient ransportation system. Certainly, the evaluation of such systems is a comprehensive and challenging task in a real world test bed, therefore, simulation frameworks are a key tool to analyze IVC. Several models are needed to emulate the real behavior of a VANET in all aspects as much realistically as necessary. The intention of this survey is to provide a comprehensive overview of publications concerning IVC simulations of the year 2013 and to see how IVC simulation has changed since 2009. Based on this analysis, we will answer the following questions: What simulation techniques are applied to IVC? Which aspects of IVS have been evaluated? What has changed within five years of IVC simulations? We also take a closer look at commonly used software tools and discuss their functionality and drawbacks. Finally, we present open questions concerning IVC simulations.}, language = {en} }