نتایج جستجو برای: umts
تعداد نتایج: 2126 فیلتر نتایج به سال:
been found to be lower than that of either solely through the WiFi and the UMTS networks. It is normally expected to be higher than traversing through the WiFi network only. Both the MOS (Mean Opinion Score) and the packet end-to-end delay were also found to be much lower than expected through the heterogeneous WiFi-UMTS network.
This paper presents solutions developed in the ACTS ASPeCT project for advanced security features in UMTS. In particular, a secure billing scheme for value-added information services using micropayments is presented. The solutions will be validated in a trial to be conducted over an experimental UMTS platform.
Abstract. Results for Enhanced UMTS (E-UMTS) cost/revenue optimisation are obtained, as a function of the coverage distance, R. E-UMTS traffic genera-tion and activity models are described and characterised in an urban scenario based on population and service penetration values. By using a System Level Simulator results were obtained for blocking and handover failure probabilities. Models for t...
Rapidly, the world is getting more and more connected. Internet plays a prominent role in this trend. At the same time, the world is getting less and less wired. People are becoming more and more mobile, carrying mobile devices such as laptops and mobile phones around. The combination of both trends results in a huge demand for wireless communication. When we consider current mobile devices as ...
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