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A parametric optimization approach to admission control and bandwidth assignment in hybrid TDM networks
Author(s) -
Aicardi Michele,
Bolla Raffaele,
Davoli Franco,
Minciardi Riccardo
Publication year - 1993
Publication title -
international journal of digital and analog communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1047-9627
DOI - 10.1002/dac.4510060104
Subject(s) - computer science , bandwidth (computing) , asynchronous communication , network packet , frame (networking) , parametric statistics , mathematical optimization , optimization problem , computer network , algorithm , mathematics , statistics
The access to a multiservice synchronous TDM network is considered, where hybrid frames are used to carry two basic traffic types (a circuit‐switched isochronous and a packet‐switched asynchronous one), generated by several users. Each user is assigned a portion of the total available bandwidth, in terms of slots/frame, which is dynamically allocated between the two traffic types at the user premises, by means of a local randomized decision rule. The users' bandwidth shares (capacities) are allocated by a centralized agent, whose goal is to minimize a global cost function that accounts for packet delays and call blocking of the entire process. Parametric optimization problems for the central agent are defined and the application of suitable descent techniques is shown, with the cost function extending over a finite and an infinite time horizon, respectively. The specific nature of the optimization problems is discussed, and numerical examples and simulations are presented that illustrate the effectiveness of the method.