Flexible network support for mobility
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Application-layer mobility using SIP
ACM SIGMOBILE Mobile Computing and Communications Review
ACM SIGMOBILE Mobile Computing and Communications Review
3G and Beyond & Enabled Adaptive Mobile Multimedia Communication
ICN '01 Proceedings of the First International Conference on Networking-Part 1
WLAN-GPRS integration for next-generation mobile data networks
IEEE Wireless Communications
Ambient networks: an architecture for communication networks beyond 3G
IEEE Wireless Communications
Interworking techniques and architectures for WLAN/3G integration toward 4G mobile data networks
IEEE Wireless Communications
Relay-based deployment concepts for wireless and mobile broadband radio
IEEE Communications Magazine
Emerging mobile and personal communication systems
IEEE Communications Magazine
Forecasting broadband Internet adoption on trains in Belgium
Telematics and Informatics
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In this work we investigate the deployment of so-called "media points" to facilitate the provisioning of personalized push services to mobile users within WLAN hotspots. We present the feasible usage scenarios with stationary and moving user terminals for some envisioned services and outline the requirements characteristic for a media point system. A hierarchical architecture with centralized service control for small-scale media point networks is proposed and the employment of Session Initiation Protocol (SIP) for handling the mobility and session management of media point services is described. A demonstrator system has been developed in order to show the technical feasibility of the concept by means of state-of-the-art technologies and to allow an experimental performance evaluation of the proposed protocols and mechanisms for a typical service-provisioning scenario. We observed that system performance is strongly dependent on the level of interworking between the various protocols and software modules, e.g., SIP modules, DHCP modules, WLAN device driver, etc. In particular the signaling mechanism within the network by means of SIP doesn't cause any significant delay. The overall system performance is found as acceptable when assuming that the dwell time of mobile users within WLAN hotspots is in the order of minutes or longer.