| Author | Santhaya Silachamroon |
| Call Number | AIT Thesis no.TC-02-12 |
| Subject(s) | Telecommunication--Traffic
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TC-02-12 |
| Abstract | In this thesis work, effective bandwidth of a self-similar traffic stream entering an
ATM statistical multiplexer is studied. The effective bandwidth estimation approach based
on the modified upper bound for tail distribution of queue length that is proposed to use
with self-similar traffic are applied. The advantage of this upper bound is that it takes into
account both short-range and long-range dependent behavior of the traffic. The self-similar
traffic is modeled by the equivalent minisources model.
Input traffic traces used to verify this estimation method consist of generated self-similar
traffic and a downloaded video traffic trace. Analytical and simulation results are
then compared and factors that may have influence on the bound are investigated. Two
schemes to distribute cells are studied, periodically distributed and distributed into
exponential distribution batch size.
Simulation results show that effective bandwidth of the traffic decreases when
larger buffer is applied and it is higher and decreases slower for traffic that has higher
Hurst parameter (H). Effective bandwidth estimated from this approach can be used as a
good upper bound for traffic that has different Hurst parameter, although it decays very
slowly for traffic with large Hurst parameter. The results obtained from simulation and
estimation depend on the distribution of offered cells in slots (higher resolution time scale).
The maximum difference of the estimated and simulation results is not more than 2.9% for
the generated self-similar traffic that has small variance. For video traffic that has high
variance, the maximum difference of the estimated and simulation results is high.
However, the estimated results give close bound to all traffic at the beginning of the range
of buffer size. |
| Year | 2002 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-02-12 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Erke, Tapio ; |
| Examination Committee(s) | Ahmed, Kazi M. ;Teerapat Sanguankotchakorn; |
| Scholarship Donor(s) | Telephone Organization of Thailand (TOT); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2002 |