A Distributed Admission Control Mechanism for Multi-Criteria QoS
Source: Imperial College London
Admission control based on multiple criteria has always been a desirable feature for computer networks. In the past, the authors presented such a system, but it was based on a centralised decision mechanism, which by itself constitutes a significant limitation. Here, they describe a decentralised version of the initial admission control algorithm, while still keeping the multiple criteria aspect, with each user being able to specify their Quality of Service (QoS) metrics at the level of the individual. Their scheme decides whether a new call should be allowed to enter the network based on measurements of the QoS metrics on each link of the network before and after the transmission of probe packets.