Cross Layer QoS Implementations: The Clean-Slate Approach

Background

The classical approach where the communication protocols worked independently from each other was suitable for non real-time applications running over wired networks. In what concerns real-time services, the previously mentioned paradigm proved to be unsatisfying. A certain degree of adaptation is necessary to optimize the execution of high-level applications or protocols, using information received from the lower layers. In this section, we discuss first about the information exchanged between the layers through cross-layer techniques. Examples according to evolutionary approach are accompanying the survey, the material being organized with respect to the OSI Layer the information is acquired from. Later we commented the role of the clean-slate approach with respect to the step-by-step strategy of progress is this field.