Mobile information community develops quickly, as mobile telecommunication technology matches to the third generation. XML-based GIS becomes a global standard and the foundation. Recent developed Geography Markup Language (GML) allows integration of GIS location-based services, telematics, and intelligent transportation systems. In this paper, we propose a tourism information system for support...

This paper presents a study of packet data services over wireless connections in the context of Universal Mobile Telecommunication System (UMTS). To perform the study an emulator of the radio access part has been made which includes the mobile terminal and the UMTS Terrestrial Radio Network (UTRAN). The main features, the validation procedure and some results are contained.

Coverage and capacity are significant issues in the planning process for cellular mobile networks. In this paper we focus on calculations for capacity, coverage for a Code Division Multiple Access (CDMA) cell for Universal Mobile Telecommunication System (UMTS) networks in different propagation environments.

This paper presents a new dual-band, dual-polarized 1×4 antenna array design for telecommunication base station. One of the bands covers global system for mobile communication (GSM) band, while the other covers both digital communication system (DCS) and universal mobile telecommunication system (UMTS) bands. The antenna is based upon an aperture stacked patch layout and incorporates a simple a...

Mobile agents gained immense attraction as a new programming concept for implementing distributed applications. However, up to now mobile agent programming has been mainly technology driven, with a focus on the implementation of mobile agent platforms and only small programming applications. In this work, we present an extension of the standard UML that provides language concepts for modeling m...

Since their inception, mobile communications have become sophisticated and ubiquitous. However, as the popularity of mobile communications surged in the 1990s, Second Generation (2G) mobile cellular systems such as IS-95 and Global System for Mobile (GSM) were unable to meet the growing demand for more network capacity. At the same time, thanks to the Internet boom, users demanded better and fa...

For almost all applications within the telecommunication area speed and quality of data transfer is a very important factor. A main reason for using mobile agents in the telecommunication world is that there is a potential for better performance. In particular for mobile telecommunication networks like GSM, mobile agent technology can have considerable advantages. This is based on the fact that...

Finding the location of the mobile phone is one of the important features of the 3G mobile communication system. Many valuable locationbased services can be enabled by this new feature. Telecommunication managers and engineers are often puzzled by location terminologies and techniques as well as how to implement them, since location systems are not natural evolution from past generations of tel...