1. INTRODUCTION Public Access Mobile Radio systems (PAMR) using trunking technology allow more efficient use of the frequency spectrum, as all the users of the system jointly use a common pool of channels. This counteracts one of the limiting factors on the growth of conventional Private Mobile Radio systems (PMR), frequency congestion [1]. Moreover the public trunked network offers the user ma...

This paper defines a radio resource management concept for multimedia services in future broadband mobile radio networks. Based on the Hiperlan/2 system we design an adaptive radio resource scheduler which autonomously adapts to current traffic types and volume. We assume IP traffic models for voice, HTTP and video users and optimize the scheduling functions in the access point (base station) o...

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...

Beyond 3G mobile communication systems are being defined as the integration of diverse radio access technologies into what is generally known as heterogeneous wireless systems. These systems present important challenges in terms of the management of the available radio resources for each radio access technology. Given the complexity of mobile communication systems, the use of simulation tools t...

In this paper, the base-to-mobile link in a cellular CDMA mobile radio system, in the presence of Rayleigh fading, is considered, and an analytical approach is developed which enables us to nd the optimal form of the power control law and to evaluate its performance in terms of the system utilization, i.e., the ratio of the number of admitted users to the spreading factor per information bit. T...

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