T. Krahmer, A. Lang, J. Dittmann, C. Krätzer, and C. Vielhauer (Germany)
Mobile multimedia, transport protocols
We reach an age where mobile devices are affordable for nearly everyone. The technology used within these small devices is evolving with every new generation of the devices and allows us, for example, to gain information about the place we are presently. In the example of location based services in museums the common way to provide information to a visitor is to equip him with a device bought and maintained by the museum. The idea from [6, 22] using the user’s mobile device, which he already knows is further developed in this paper from the software setup procedure. Today’s mobile devices offer different techniques and protocols of transmitting text and multimedia data between their users which allows us to bring the guide software directly to the visitors mobile device. In this paper, we discuss and compare different possibilities to offer location based services to the user by using different existing transmission techniques (Bluetooth [1], GPRS [2] and UMTS [2]) with their protocols (OBEX [3], MMS [4] and WAP [5]) in focus of a location based service like for example for a museum. Thereby, their pros and cons of transmitting a specific application or requested information to the users mobile phone are compared and discussed. The main goal of this paper is to describe how to transmit and install software for audio guides and to evaluate the interoperability of different devices regarding to the technology, which is needed for an audio guided tour with these devices. The practical work is based on the examination of three selected mobile devices from different vendors (Nokia, Samsung and Sony Ericsson).
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