Investigation on traffic modeling and its applications in wireless communication simulations

The growing portion of packet data traffic in mobile communication systems makes it important that accurate traffic models for various services be obtained for network planning and provisioning. In this paper, we present traffic models for typical mobile data services including VoIP, video, WWW and FTP to assist in the evaluation and engineering of data services in mobile communication systems. We also discuss how to adjust related traffic model parameters to facilitate simulations.

I Introduction

Providing a full range of multi-rate and high-data-rate services, all of which with different quality of service (QoS) and performance requirements, has becoming one of design aims of next generation mobilecommunication networks 0. Broadly speaking, it can be foreseen all types of services bearered in present wired communication networks will also employed in wireless environment in order to provide more convenient access. However, wireless QoS is a much complex problem due to the time-varying characteristics of channel condition and user mobility, therefore, the investigation on wireless traffics, especially integrating with their features of high-data-rate and broad QoS levels, has been regarded as an important research point for the design of future wireless communication systems.