| Author | Lokuge, Uditha Pabath Lenaduwa |
| Call Number | AIT RSPR no. TC-94-01 |
| Subject(s) | Telecommunication--Traffic
|
| Note | A research submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-94-01 |
| Abstract | Connection Admission Control (CAC) scheme is an important part of the congestion control
mechanism being identified in an ATM environment. It is a preventive control mechanism. Several
CAC schemes using an upper bound for Cell Los~ Probability (CLP) have been proposed. Saito's
Upper bound method and the Three Parameter Scheme, proposed by Chamila work on obtaining an
upper bound for the CLP. While Saito's scheme is definitely an upper bound, the use of the buffer
size parameter in obtaining this upper bound can be eliminated as shown in this study, thus reducing it
to a buffer less fluid flow model. Three Parameter Scheme on the other hand looses in the gain
achievable due to its somewhat arbitrary selection criteria for the selecting the observation interval.
A new selection criteria fonnulated in this study provides a better link utilization.
Traffic shaping mechanisms have been considered as prut of the UPC/NPC functions which
determine the confo1mance of a source traffic to the negotiated traffic parameters, during c.ell set up
phase. Two types of traffic shaping methods , burst splitting and cell dispersion in time, a.re studied.
It is established that the cell dispersion in time provides better Cell Loss Probability characteristics for
the same amount of delay variation introduced compared to the burst splitting method. |
| Year | 1994 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-94-01 |
| Type | Research Study Project Report (RSPR) |
| School | School of Advanced Technologies (SAT) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Takahashi, Kenzo; |
| Examination Committee(s) | Erke, Tapio J.;O'Farrell, T.;Sharma, A.B.; |
| Scholarship Donor(s) | Finnish International Development Agency
(FINNIDA), Finland; |
| Degree | Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1994 |