We have performed extensive radio channel measurements in different radio environments at 2.15 GHz frequency. A spherical array and a wideband radio channel sounder were utilized at the mobile station in order to characterize the spatial radio channel at the mobile. The measurement setup, presented in [1], enables the full 3D spatial and polarization characterization of the wideband mobile radi...

In this paper, we present ICEPT, a new mobile radio network planning tool that is based on an integrated design approach. The new approach starts with the analysis of the spatial distribution of the expected teletra c within the service area of the cellular system. Employing this principle, the ICEPT tool considers concurrently the four major design areas of cellular networks: Radio Transmissio...

In this paper a new approximate method for the computation of outage probabilities in a mobile radio environment is proposed. It allows one to evaluate the performance of a mobile radio system in the presence of fading, in a very fast and accurate way, while maintaining a very good flexibility as to the application to different network environments. Coding is also considered as a possible choic...

mobile subscribers has increased much faster than anticipated. This trend is expected to continue in the future. According to the Universal Mobile Telecommunication System (UMTS) Forum [1], there will be around 400 million mobile subscribers worldwide in the year 2000 and almost 1800 million subscribers in the year 2010. In recent years, the number of subscribers to analog firstgeneration mobil...

The provision of software radio features in 3rd generation mobile systems enables terminal and system flexibility for the support of platform independent services and migration of 2nd generation mobile systems. To achieve adaptivity of UMTS terminals and system, a new modelling and design approach is necessary. This contribution presents a novel architecture model related to dynamic aspects and...

The Universal Mobile Telecommunication System (UMTS) is the most powerful technology in the third generation (3G) mobile communication and it is the base for the 4G technology. The Wide band Code Division Multiple Accessing (WCDMA) is the radio access technique for the UMTS system. The Radio Link Control (RLC) Protocol is apart from layer 2 of WCDMA protocol architecture. In this paper, we pres...

This paper presents a system level simulator that has been developed with OPNET in order to evaluate the behavior of different Radio Resource Management (RRM) strategies in UMTS (Universal Mobile Telecommunications System) for 3rd Generation (3G) mobile communications under multiuser, multiservice and multicellular scenarios. The simulator includes models for the User Equipment, Base Station an...

In this paper, we present ICEPT, a new mobile radio network planning tool that is based on an integrated design approach. The new approach starts with the analysis of the spatial distribution of the expected teletraac within the service area of the cellular system. Employing this principle, the ICEPT tool considers concurrently the four major design areas of cellular networks: Radio Transmissio...

Digital modulation plays a significant role in efficient wireless communication. It allows the transmission of digital data via air on high frequency carrier waves. The worst case communication channel is usually in the urban environment where there are many obstacles. Due to the obstacles and reflectors, the transmitted signal arrives at the receiver from various directions over a multiplicity...