'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
The 3GPP consortium proposed in the release 7 of the IP Multimedia Subsystem (IMS) a Diameter interface for the resource admission communication process replacing the previous COPS solution. Although both academic and industry communities have deeply debate the advantages and disadvantages of each protocol, its impact in NGN may have not been thoroughly quantified. This paper compares both protocols in terms of messages
exchanged between network entities, and of bandwidth
requirements during the admission control process. Based on
general network operator environment characteristics, we present
several exploitation scenarios where it is analyzed the scalability
and adequacy of each protocol