Mobile systems and protocols for data communications are available for some years now. While the Wide Area Network (WAN) and Local Area Network (LAN) show many different technologies, various support services should be based on similar protocols and systems and should be homogenous for both of those areas. Although traditional telecommunications in the wireless domain supported voice communications mainly, advanced technology integrates data communications as well. Important tasks for a mobile communications infrastructure include the support of mobility of users and devices. In particular, ad-hoc networks enable the set-up of a jointly utilized communication "infrastructures" for an arbitrary number of coming in and leaving participants. Furthermore, a secure and accounted for access to a backbone network from a mobile node are of major importance, to ensure a correct accountability as well as authorized access. While Location-based Services (LBS) become an obvious provisioning goal of mobile service operators, Voice-over-IP (VoIP) in the wireless domain may face a number of problems. Finally, the integrated security aspects of wireless technology provide a network-level security approach, which is depending on the particular technology. Therefore, a review of several challenges and weaknesses of this process of migration toward a mobile world is required and the talks in this seminar are providing an approach to judge their dedicated suitability.     «

Mobile systems and protocols for data communications are available for some years now. While the Wide Area Network (WAN) and Local Area Network (LAN) show many different technologies, various support services should be based on similar protocols and systems and should be homogenous for both of those areas. Although traditional telecommunications in the wireless domain supported voice communications mainly, advanced technology integrates data communications as well. Important tasks for a mobile c...    »