A rapid development in mobile telecommunication is the use of location information for context aware service. To amalgamate multiple location sensor technologies, we developed an Intelligent Service Area and Region Identification System (iSARIS) to allocate system resource for mobile service discovery and tracking. Primary location service is provided by cell identification which maps a wide re...

The Universal Mobile Telecommunication System (UMTS), viewed as the wireless access part of a backbone ATMbased broadband services fixed network (B-ISDN), serves the goal for future integrated communications. One of the major issues for the deployment of UMTS high-bandwidth and real-time multimedia applications, is the specification of acceptable Quality of Service (QoS) requirements for mobile...

As telecommunication technologies in telemedicine services are developed, the expeditious development of wireless and mobile networks has stimulated wide applications of mobile electronic healthcare systems. However, security is an essential system requirement since many patients have privacy concerns when it comes to releasing their personal information over the open wireless channels. Due to ...

This paper deals with simulations of a radio interface of third generation (3G) mobile systems operating in the WCDMA FDD mode including propagation predictions in macro and microcells. In the radio network planning of 3G mobile systems, the quality of coverage and the system capacity present a common problem. Both macro and microcellular concepts are very important for implementing wireless co...

Mobile data services are entering into all aspects of people’s life and are expected to be an important revenue source of telecom carriers. Nevertheless, the acceptance pace of mobile data services is slower than the expected level projected by the telecommunication industry. This research investigated the reason that people use mobile data services in China. Combined with subscribers’ experien...

We present a software tool, called ALIMOS, for accessing digital music libraries in mobile telecommunication services. The tool provides a semi-automatic interface that allows users to interact with their digital music library in a flexible way based on a combination of content and semantic information. The system architecture is based on a multi-tier application with a front-end and a back-end...

With the availability of high bandwidth wireless channels such as 3G-telecommunication infrastructure and wireless LAN, mobile learning (M-learning) is becoming more feasible now. M-learning can be considered as an intersection of online learning and mobile computing. Through wireless devices (such as mobile telephones, Personal Digital Assistants PDAs, tablet PC, and laptops) and wireless appl...

This paper investigates the performance of TCP over High Speed Downlink Packet Access (HSDPA) link in the third generation Universal Mobile Telecommunication System (UMTS). The throughput performance of TCP has been considered with both round robin and maximum carrier-tointerference scheduling schemes. A simulation based approach is adopted to determine the total cell throughput, both under ide...

The forthcoming UMTS system and the subscriber’s new requirements will bring powerful changes in mobile telecommunication. With the available functions and possibilities the role of the infrastructure provider and content / application provider should diverge. In our study, we will show these new functions and possibilities, we summarize the legal and technical difficulties of the advents of 3 ...