TABLE OF CONTENTS As the evolution of wireless networks allows for an increasingly wide range of services, the Radio Resource Management (RRM) function, which divides the available resources amongst competing applications, is receiving increased attention. There are several reasons that render RRM very important [49 75]:
RRM functions allow the support of a range of different requirements from the various services that the wireless network is required to support.
RRM may ensure the planned coverage (i.e., the area where the service is supported) for each service.
RRM may optimize capacity utilization.
Basically, the RRM has the complex task of maximizing the number of users that can be served satisfying their different service requirements, in time varying radio conditions and dynamic traffic behavior. In this section we will focus on the main RRM functions.
In order to guarantee a satisfactory end user quality, the transmission of a data flow, which is originated by the application, has to satisfy certain requirements that define the QoS profile for the information data stream of interest. Usually, the QoS attributes for a particular application/service are: required throughput, maximum acceptable delay, maximum acceptable delay jitter, and maximum acceptable bit error rate.
From the end user point of view, the following issues must be taken into account [53]:
End users only care about the degree of QoS, and not about how it is provided.
Only the QoS perceived by end user matters.
The number of "user defined/user controlled" parameters has to be at a...
